ZINC PHOSPHATE
ZINC PHOSPHATE
Zinc phosphate is an inorganic chemical compound with the formula Zn₃(PO₄)₂, widely recognized for its superior corrosion resistance and commonly used as a protective coating on metal surfaces, especially in automotive, construction, aerospace, and marine industries.
In dentistry, zinc phosphate hydrate is used as a luting agent for permanent metal restorations and as a base material for dental cements due to its mechanical strength and biocompatibility.
Zinc phosphate coatings form a dense, adherent, and insoluble crystalline layer that acts as a physical and electrochemical barrier, significantly enhancing corrosion resistance and improving paint adhesion.
CAS Number: 7779-90-0
EC Number: 231-944-3
Chemical Formula: Zn3(PO4)2
Molar Mass: 386.11 g/mol
Synonyms: Phosphoric acid, zinc salt (2:3), trizinc bis(orhthophosphate), Trizinc bis(ortho)phosphate, trizinc bis(orthophosphate, TRIZINC BIS(ORTHOPHOSPHATE), Trizinc bis(orthophosphate), trizinc bis(orthophosphate), Trizinc bis(orthophosphate), trizinc bis(orthophosphate), Trizinc Diphosphate, Trizinc diphosphate, trizinc diphosphate, trizinc(2+) diphosphate, trizinc(2+) ion diphosphate, Zinc ortho-Phosphate, zinc phopsphate, Zinc phosphate, zinc phosphate, Zinc Phosphate, Zinc phosphate, zinc phosphate, 7779-90-0 [RN], Phosphate de zinc (2:3) [French] [ACD/IUPAC Name], Zinc phosphate, Zinc phosphate (3:2) [ACD/IUPAC Name], Zinkphosphat (3:2) [German] [ACD/IUPAC Name], PHOSPHORIC ACID ZINC SALT, ZINC PHOSPHATE TRIBASIC, ZINC PHOSPHATE (ORTHO), ZINC PHOSPHATE, ZINC ORTHOPHOSPHATE, bonderite40, neutralzincphosphate, phosphinoxpz06, Phosphoricacid,zincsalt(2:3), pigmentwhite32, sicorznp/m, sicorznp/s, tribasiczincphosphate, trizincdiphosphate, virchem931, weathercoat1000, zincacidphosphate, zincphosphate(3:2), zincphosphatecement, zpf, zp-sb, trizinc bis(orthophosphate), Zubc ogisogate tetagtdrate, Zincphosphate(ortho),Puratronic?,99.995%(metalsbasis), ZINC PHOSPHATE 4 H2O, ZINC PHOSPHATE, 99.999%, ZINC PHOSPHATE, 1GM, NEAT, zinc phosphate (ortho), puratronic, Zinc phosphate hydrate, tech., Zinc phosphate (ortho), Puratronic(R), 99.995% (metals basis), znic phosphate, Zinc Phosphate (Ortho), Puratronic (Metals Basis), Zinc phosphate dihydrate, Zinc phosphate hydrate, technical, Zinc phosphate tribasic tetrahydrate, Zinc phosphate 99.998% trace metals basis, Zinc phosphate(Technical)
Zinc phosphate is used in dentistry.
Zinc phosphate is commonly used for luting permanent metal restorations and as a base for dental restorations.
Zinc phosphate is also used for cementation of inlays, crowns, bridges, and orthodontic appliances and occasionally as a temporary restoration.
Zinc phosphate is an inorganic chemical compound with the formula Zn₃(PO₄)₂.
Zinc phosphate typically appears as a white, crystalline powder and is widely known for its excellent corrosion resistance properties.
Zinc phosphate is insoluble in water but can dissolve in strong acids.
Zinc phosphate forms a protective, adherent coating on metal surfaces, which makes it an essential component in industrial primers and anti-corrosion treatments, particularly for iron and steel.
In addition to its use in metal coatings, zinc phosphate is also employed in dental cements, pigments, and as an additive in paints to improve durability.
Zinc phosphate’s protective action is based on the formation of a dense, insoluble layer that acts as a physical barrier against moisture and aggressive chemical agents.
Zinc phosphate coatings are often used as a pre-treatment step before painting or powder coating to enhance adhesion and extend the life of the final finish.
Zinc phosphate is an inorganic compound with the chemical formula Zn₃(PO₄)₂, commonly encountered as a white crystalline solid that is insoluble in water but can dissolve in strong acids.
Zinc phosphate is widely recognized for its superior anti-corrosion properties and plays a crucial role in surface treatment processes across various industries.
Zinc phosphate coatings are typically applied to ferrous metals, such as iron and steel, to create a chemically bonded, dense, and adherent layer that significantly enhances corrosion resistance by serving as a protective physical barrier against environmental factors like moisture, oxygen, and industrial chemicals.
This layer also provides an excellent base for subsequent coatings, such as paints and powders, improving their adhesion and durability.
Beyond its application in metal treatment, zinc phosphate is used in the formulation of anti-corrosive paints, pigments, and as a dental cement in restorative dentistry due to its biocompatibility and mechanical stability.
Zinc phosphate has largely replaced older, more toxic coatings like lead-based primers, due to its relatively safer environmental profile.
Zinc phosphate coatings are often applied through a chemical conversion process involving phosphating baths, where a metal surface is immersed in a solution containing zinc ions and phosphate ions under controlled conditions.
This results in the precipitation of a microcrystalline zinc phosphate layer tightly bound to the metal substrate.
The protective effect of zinc phosphate is both physical and electrochemical, providing sacrificial protection and minimizing the electrochemical activity of the metal surface.
Because of these features, zinc phosphate is extensively used in automotive, construction, aerospace, military, and marine industries where long-term metal protection is critical.
Overall, zinc phosphate remains a cornerstone material in corrosion prevention technologies due to its effectiveness, versatility, and relatively low environmental impact compared to older systems.
Zinc phosphate is an inorganic compound with the formula Zn3(PO4)2)(H2O)4. This white powder is widely used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment (see also red lead).
Zinc phosphate has largely displaced toxic materials based on lead or chromium, and by 2006 it had become the most commonly used corrosion inhibitor.
Zinc phosphate coats better on a crystalline structure than bare metal, so a seeding agent is often used as a pre-treatment. One common agent is sodium pyrophosphate.
Zinc Phosphate is the type of phosphating which is suitable for metal parts which are required to provide high corrosion resistance.
Zinc Phosphate is the crystallized conversion coating.
Zinc Phosphate can be applied as fine grained and coarse grained and is the type of coating commonly used for equipment used in bad outdoor conditions before powder coating and electro-coating.
Zinc phosphates are applied on steel surfaces using solutions of zinc phosphate, phosphoric acid and activators.
These proprietary chemical solutions deposit a crystalline coating of zinc phosphate during the application process.
During the initial steps in the process, the metal is cleaned to remove oily soils.
They can be applied cold or hot.
Although viable, the cold processes are not widely used.
Zinc phosphate conversion coatings are widely used for increasing corrosion resistance and surface preparation for painting.
This kind of treatment has recently been introduced in the field of reinforced concrete.
However, the disadvantage in the use of such coatings is the existence of pores.
Zinc phosphating baths have constantly been developed and modified by additives in order to enhance the coating characteristics including the corrosion resistance and the alkaline stability.
Zinc phosphate cement the one of the oldest and widely used cements, and is commonly used for luting permanent metal restorations and as a base.
Zinc phosphate is a high-strength cement base, mixed from zinc oxide powder and phosphoric acid liquid.
Due to Zinc phosphate’s low initial pH, Zinc phosphate may cause pulpal irritation, especially where only a thin layer of dentin exists between the cement and the pulp; thus is especially important to follow the correct procedures and precautions when using zinc phosphate cement.
Zinc phosphate coating is commonly used for corrosion protection of metallic materials, mainly mild steel.
Zinc phosphate coating elevates the natural crystalline aesthetics of hot dipped galvanized steel for decorative use.
Zinc phosphate is favoured for its natural, luxurious and stately ambiance and for the gray tones that settle over time.
Zinc phosphate is a phosphate of zinc.
Zinc phosphate is found naturally as the minerals hopeite, parahopeite, and tarbuttite.
Zinc phosphate is used as a dental cement and corrosion resistant coating.
Zinc is a metallic element with the atomic number 30.
Zinc phosphate is found in nature most often as the mineral sphalerite.
Though excess zinc in harmful, in smaller amounts Zinc phosphate is an essential element for life, as it is a cofactor for over 300 enzymes and is found in just as many transcription factors.
Zinc phosphate (Zn3(PO4)2) is an inorganic chemical compound used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment.
Zinc phosphate coats better on a crystalline structure than bare metal, so a seeding agent is often used as a pre-treatment.
One common agent is sodium pyrophosphate.
Minerals of Zinc Phosphate:
Natural forms of zinc phosphate include minerals hopeite and parahopeite.
A somewhat similar mineral is natural hydrous zinc phosphate called tarbuttite, Zn2(PO4)(OH).
Both are known from oxidation zones of Zn ore beds and were formed through oxidation of sphalerite by the presence of phosphate-rich solutions.
The anhydrous form has not yet been found naturally.
Market Overview of Zinc Phosphate:
The global zinc phosphate market has experienced steady growth over recent years, primarily driven by increasing demand for high-performance corrosion-resistant coatings in sectors such as automotive, construction, shipbuilding, and aerospace.
Zinc phosphate is widely recognized as an environmentally safer alternative to older toxic anticorrosion treatments like chromates and lead-based compounds, making it an attractive material in markets focused on regulatory compliance and sustainability.
The market size is expected to continue expanding, fueled by growth in infrastructure development, particularly in emerging economies, and the increasing emphasis on extending the service life of metal structures through advanced surface treatments.
Automotive manufacturing remains one of the largest consumers of zinc phosphate coatings, where it is used extensively for pre-paint treatments to enhance adhesion and prevent rust.
The construction industry also contributes significantly, utilizing zinc phosphate-based primers in structural steelworks to ensure long-term durability.
Additionally, the healthcare sector represents a niche but growing area of application, particularly through Zinc phosphate’s use in dental cements.
Regionally, Asia-Pacific dominates the zinc phosphate market due to rapid industrialization, urban development, and the presence of major automotive and construction industries, with China and India leading consumption.
North America and Europe follow, supported by stringent environmental regulations promoting the use of safer corrosion protection solutions.
Key trends influencing the market include innovation in environmentally friendly phosphating technologies, the rising adoption of powder coatings incorporating zinc phosphate, and growing investments in research and development to improve coating performance under harsh environmental conditions.
Despite Zinc phosphate’s positive outlook, market expansion can be challenged by fluctuating raw material prices and the availability of alternative corrosion protection technologies.
However, overall, the zinc phosphate market is positioned for sustained growth in the coming years, aligned with global trends toward durability, environmental safety, and infrastructure modernization.
Uses of Zinc Phosphate:
Zinc phosphate is primarily used as a corrosion-resistant coating material for metal surfaces, especially in industrial sectors where long-term protection against rust and environmental degradation is critical.
Zinc phosphate is most commonly applied as a conversion coating on iron and steel, forming a stable, adherent, and insoluble layer that enhances the corrosion resistance of the underlying metal.
In the automotive industry, zinc phosphate is used extensively as a pretreatment for car bodies and parts before painting, improving both paint adhesion and the overall durability of the finish.
In the construction industry, Zinc phosphate is incorporated into primers and protective coatings applied to steel structures, bridges, pipelines, and heavy equipment to prevent oxidative damage and extend the service life of these assets.
Zinc phosphate is also used in the shipbuilding and aerospace industries, where exposure to harsh, corrosive environments demands highly effective protective coatings.
In addition to its industrial applications, zinc phosphate finds use in the healthcare sector, particularly in dentistry, where it serves as a component of dental cements due to its biocompatibility and mechanical strength.
Furthermore, zinc phosphate pigments are utilized in the production of corrosion-resistant paints, including formulations for marine, military, and heavy machinery coatings.
Emerging applications also include its use in powder coating technologies, where zinc phosphate provides a protective layer that enhances both the mechanical and anti-corrosion properties of finished surfaces.
Overall, the versatility, effectiveness, and environmental friendliness of zinc phosphate make it an indispensable material across a wide range of industries.
Dentistry:
Zinc phosphate dental cement is one of the oldest and widely used dental cements.
Zinc phosphate is commonly used for luting permanent metal and zirconium dioxide restorations and as a base for dental restorations.
Zinc phosphate cement is used for cementation of inlays, crowns, bridges, and orthodontic appliances and occasionally as a temporary restoration.
Zinc phosphate is prepared by mixing zinc oxide and magnesium oxide powders with a liquid consisting principally of phosphoric acid, water, and buffers.
Zinc phosphate is the standard cement to measure against.
Zinc phosphate has the longest track record of use in dentistry.
Zinc phosphate is still commonly used; however, resin-modified glass ionomer cements are more convenient and stronger when used in a dental setting.
Zinc phosphate coating is a crystallized conversion coating formed on the metal surface.
The phosphate coating process is based on the chemical reaction between the metal and the weak acidic phosphate fluid to form insoluble phosphate crystals on the surface of the part.
Phosphate coating is used as a pretreatment before painting, to increase corrosion resistance and to provide a better adhesion surface for coating systems.
When used alone or with oil, the phosphate reduces the friction characteristics of the moving components or threaded parts.
Although phosphate is generally referred to as a coating, since phosphate alone has a low rust resistance, it must be used in combination with oil or top lacquer applications in order to be used as a protection against corrosion.
Zinc phosphate can be applied to Ferrous metals, but it has no effect on Stainless Steel.
Industry Uses:
Corrosion inhibitors and anti-scaling agents
Dyes
Paint additives and coating additives not described by other categories
Pigments
Plating agents and surface treating agents
Processing aids, not otherwise listed
Surface active agents
Consumer Uses:
Agricultural products (non-pesticidal)
Industrial chemicals
Metal products not covered elsewhere
Paints and coatings
Plastic and rubber products not covered elsewhere
Water treatment products
used in products which are used as cleaners in plating processes, examples of final uses are automotive and machinery.
Applications of Zinc Phosphate:
Pre-treatment:
Product surface cleaning is provided in pretreatment.
Activation:
Before the coating process, Zinc phosphate surface is activated and the products are prepared for coating.
Coating:
When Zinc phosphates are immersed in the bath, the metal surface is coated with phosphate.
Lubrication:
Protective oil applications can be performed in order to improve the corrosion resistance performance of the products
Zinc phosphate cements or polycarboxylate cements are still used for cementation of posts and crowns.
They are generally supplied as a powder and a liquid and their physical properties are highly influenced by the mixing ratio of the components.
Zinc phosphate conversion coating gives a high level of corrosion resistance and provides a perfect foundation for subsequent coating or painting.
Zinc phosphate conversion coatings can be used on a wide range of metallic surfaces including galvanized steel, electrogalvanized steel, zinc-alloy-coated steel aluminium, zinc, cadmium, silver and tin.
Zinc phosphate coating products with accelerator system used for wire and tube drawing.
Zinc phosphate is suitable for immersion and continuous (in-line) use.
Allows high speed drawing of carbon steel wires.
Coating weight is in the range of 6-10 g/m2.
Zinc phosphate provides phosphate coating which is necessary in demanding cold forming works in the production of bolts, nuts, screws and similar fasteners.
Iron concentration of the phosphating solution is monitored and controlled by air mixing system.
Advantages of Zinc Phosphate:
Zinc phosphate offers several significant advantages that make it a preferred material for corrosion protection and surface treatment applications.
One of its primary benefits is its excellent corrosion resistance; Zinc phosphate forms a dense, insoluble coating that protects metal surfaces from oxidation and environmental degradation, thereby significantly extending the service life of components and structures.
Compared to traditional chromate and lead-based coatings, zinc phosphate is considered environmentally safer and less toxic, aligning with increasingly strict global environmental and health regulations.
Another important advantage is Zinc phosphate’s ability to enhance paint adhesion.
When used as a conversion coating, zinc phosphate creates a microscopically rough surface that improves the mechanical bonding of subsequent paint layers, resulting in stronger and more durable coatings.
Zinc phosphate coatings are also highly versatile, applicable across various industries including automotive, construction, aerospace, marine, and heavy machinery sectors.
They perform reliably under a wide range of conditions, from humid coastal environments to industrial atmospheres with high chemical exposure.
Furthermore, zinc phosphate exhibits good thermal stability, maintaining its protective properties even under elevated temperatures.
Zinc phosphate is also relatively easy to apply using standardized phosphating processes, making it a cost-effective solution for mass production.
Additionally, due to its chemical stability, zinc phosphate coatings provide a long-term passive protection that requires minimal maintenance compared to other protective treatments.
These advantages collectively make zinc phosphate a critical material for modern corrosion prevention and surface preparation technologies.
Production of Zinc Phosphate:
Zinc phosphate is typically produced through a controlled chemical reaction between zinc compounds and phosphoric acid.
The most common industrial method involves reacting zinc oxide, zinc metal, or zinc salts such as zinc nitrate or zinc chloride with phosphoric acid under specific conditions.
In a typical process, zinc oxide is dispersed in water to form a slurry, and phosphoric acid is gradually added while maintaining a controlled temperature and stirring to ensure complete reaction.
The reaction yields zinc phosphate precipitate, which is then separated, washed to remove impurities, and dried to obtain the final product in powder form.
The general chemical reaction can be represented as:
2ZNO+2H3PO4→Zn3(PO4)2+3H2O
Alternatively, other zinc salts (like zinc chloride or zinc nitrate) can be reacted with sodium phosphate or other phosphate sources to produce zinc phosphate through a double displacement reaction.
The purity and particle size of the resulting zinc phosphate can be controlled by adjusting reaction parameters such as pH, temperature, and reagent concentrations, which are critical for determining the material’s performance characteristics in coatings and paints.
Modern production methods emphasize achieving fine, uniform crystal structures to enhance the corrosion protection ability and improve dispersion in paints.
In industrial-scale production, after filtration and drying, zinc phosphate is often micronized or processed into specific grades tailored for applications like industrial coatings, powder coatings, and dental cements.
Environmental considerations, such as minimizing acid waste and optimizing water usage, are increasingly integrated into production processes to comply with global sustainability standards.
General Manufacturing Information of Zinc Phosphate:
Industry Processing Sectors:
All other basic inorganic chemical manufacturing
All other chemical product and preparation manufacturing
Fabricated metal product manufacturing
Miscellaneous manufacturing
Paint and coating manufacturing
Plastic material and resin manufacturing
Plastics product manufacturing
Printing and related support activities
Services
Synthetic dye and pigment manufacturing
Transportation equipment manufacturing
Utilities
Wholesale and retail trade
Synthesis of Zinc Phosphate:
The synthesis of zinc phosphate generally involves a precipitation reaction between a soluble zinc source and a phosphate source under controlled aqueous conditions.
The most common laboratory and industrial method utilizes zinc oxide (ZnO) or zinc salts such as zinc nitrate (Zn(NO₃)₂) or zinc chloride (ZnCl₂), which are reacted with phosphoric acid (H₃PO₄) or soluble phosphates like disodium hydrogen phosphate (Na₂HPO₄).
In a typical process, zinc oxide is dispersed in deionized water to form a suspension, and phosphoric acid is slowly added with continuous stirring while maintaining a moderately elevated temperature (around 60–90°C).
The reaction leads to the formation of zinc phosphate as a white, insoluble precipitate, according to the reaction:
2ZNO+2H3PO4→Zn3(PO4)2↓+3H2O
Alternatively, zinc nitrate reacts with disodium phosphate in solution as follows:
2Zn(NO3)2+2Na2HPO4→Zn3(PO4)2↓+4NaNO3+2HNO3
During the synthesis, parameters such as pH, temperature, and reactant concentration are carefully controlled to achieve the desired crystal size, morphology, and purity, which are crucial for its performance as a corrosion-resistant coating or pigment.
After complete precipitation, the zinc phosphate is filtered, thoroughly washed to remove soluble byproducts, and dried at controlled temperatures to avoid decomposition or changes in particle structure.
In industrial production, continuous flow reactors or batch reactors are employed to synthesize zinc phosphate efficiently and consistently on a large scale.
Advances in synthesis methods also focus on producing nano-sized zinc phosphate particles for improved dispersion in modern high-performance coatings.
Occurrence of Zinc Phosphate:
Zinc phosphate does not occur naturally as a pure mineral in significant amounts; rather, it is predominantly a synthetic compound produced for industrial and commercial purposes.
However, certain naturally occurring minerals are related to zinc phosphate chemistry.
For instance, hopeite (Zn₃(PO₄)₂·4H₂O) and parahopeite are rare hydrated zinc phosphate minerals found in the oxidation zones of zinc ore deposits.
These minerals typically form as secondary minerals through the weathering and alteration of primary zinc-bearing minerals such as sphalerite (ZnS) in the presence of phosphate-rich waters.
They are usually discovered in regions where phosphate deposits intersect with zinc mineralization, often in mining environments.
Despite these natural occurrences, the quantities are extremely limited, and they are of interest mainly to mineralogists and collectors rather than industrial applications.
In practical terms, almost all zinc phosphate used commercially is synthesized through controlled chemical processes rather than mined from natural sources.
History of Zinc Phosphate:
The development and use of zinc phosphate are closely tied to advancements in corrosion protection technologies during the late 19th and early 20th centuries.
Before the introduction of zinc phosphate, lead-based and chromate-based coatings were the primary means of preventing metal corrosion, but these materials posed significant health and environmental risks.
As industrialization expanded, the demand for safer and more effective corrosion inhibitors led to the investigation of phosphate-based treatments.
Zinc phosphate emerged as a superior alternative, offering excellent adhesion and corrosion resistance without the toxicity concerns associated with earlier methods.
Zinc phosphate’s formal industrial application began in the early 20th century when phosphating processes were developed, especially for automotive and military equipment.
Early phosphating formulations used simple iron phosphate, but the addition of zinc ions to phosphating baths significantly improved the quality and performance of protective coatings.
Zinc phosphate coatings quickly gained popularity due to their ability to create a stable, uniform, and highly adherent layer on ferrous metals, providing an ideal base for painting and further protection.
During and after World War II, zinc phosphate technology saw widespread adoption in the automotive, aerospace, and construction industries, driven by the need for durable and reliable surface treatments.
Over the decades, continuous research improved the chemical formulations and application processes, leading to the modern high-performance zinc phosphate coatings used today.
The history of zinc phosphate reflects broader trends in material science: a move toward safer, more effective, and more environmentally sustainable solutions for industrial needs.
Handling and Storage of Zinc Phosphate:
Zinc phosphate should be handled in well-ventilated areas, away from incompatible substances such as strong acids.
During handling, minimize the generation of dust and avoid inhalation, ingestion, or contact with skin and eyes.
Personal protective equipment (PPE) should always be used when working with zinc phosphate.
For storage, Zinc phosphate should be kept in tightly closed containers, in a cool, dry, and well-ventilated environment, protected from moisture and sources of strong oxidizers.
Containers must be properly labeled, and materials should be stored away from food and drinking water supplies.
Reactivity and Stability of Zinc Phosphate:
Zinc phosphate is chemically stable under normal storage and handling conditions.
Zinc phosphate does not polymerize or undergo hazardous decomposition at standard temperatures.
However, Zinc phosphate can react with strong acids to release toxic and irritating gases such as phosphoric acid fumes or zinc salts.
Excessive heating may cause decomposition, producing metal oxides and phosphorus oxides.
Zinc phosphate should be kept away from strong acids, bases, and oxidizing agents to prevent unwanted reactions.
First Aid Measures of Zinc Phosphate:
Inhalation:
Move the person to fresh air.
If breathing is difficult, give oxygen.
Seek medical attention if symptoms persist.
Skin Contact:
Remove contaminated clothing immediately.
Wash affected area thoroughly with soap and water.
If irritation or redness persists, seek medical advice.
Eye Contact:
Rinse eyes immediately with plenty of water for at least 15 minutes, lifting the eyelids occasionally.
Seek medical attention promptly.
Ingestion:
Rinse mouth with water.
Do not induce vomiting unless directed by medical personnel.
Seek medical attention immediately.
Firefighting Measures of Zinc Phosphate:
Zinc phosphate itself is not combustible; however, in case of fire involving surrounding materials:
Use appropriate extinguishing media such as dry chemical powder, carbon dioxide (CO₂), foam, or water spray.
Firefighters should wear full protective clothing and a self-contained breathing apparatus (SCBA).
Avoid inhaling decomposition fumes such as metal oxides and phosphorus oxides released at high temperatures.
Accidental Release Measures of Zinc Phosphate:
In case of an accidental spill:
Evacuate the area and ensure adequate ventilation.
Wear appropriate personal protective equipment to avoid dust inhalation and direct contact.
Carefully sweep or vacuum the spilled material without generating dust, and collect Zinc phosphate into a properly labeled container for disposal according to local regulations.
Avoid allowing the material to enter drains, sewers, or natural waterways.
Clean the affected area thoroughly with water after material pickup.
Exposure Controls / Personal Protective Equipment of Zinc Phosphate:
Engineering Controls:
Use local exhaust ventilation to control airborne dust levels and maintain workplace exposure limits.
Personal Protective Equipment (PPE):
Respiratory Protection:
Use an approved particulate respirator if dust generation is possible.
Skin Protection:
Wear chemical-resistant gloves and protective clothing to prevent skin contact.
Eye Protection:
Use safety goggles or a full-face shield where dust or splashing is possible.
Hygiene Measures:
Always wash hands, forearms, and face thoroughly after handling zinc phosphate.
Do not eat, drink, or smoke while handling the material.
Remove contaminated clothing and wash before reuse.
Identifiers of Zinc Phosphate:
CAS Number: 7779-90-0
ChemSpider: 22927
ECHA InfoCard: 100.029.040
PubChem CID: 24519
RTECS number: TD0590000
UNII: 1E2MCT2M62
CompTox Dashboard (EPA): DTXSID3064807
InChI: InChI=1S/2H3O4P.3Zn/c2*1-5(2,3)4;;;/h2*(H3,1,2,3,4);;;/q;;3*+2/p-6
Key: LRXTYHSAJDENHV-UHFFFAOYSA-H
InChI=1/2H3O4P.3Zn/c2*1-5(2,3)4;;;/h2*(H3,1,2,3,4);;;/q;;3*+2/p-6
Key: LRXTYHSAJDENHV-CYFPFDDLAR
SMILES: [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])(=O)[O-].[O-]P([O-])([O-])=O
Linear Formula: Zn3(PO4)2
Pubchem CID: 24519
MDL Number: MFCD00036282
EC No.: 231-944-3
IUPAC Name: trizinc; diphosphate
Beilstein/Reaxys No.: N/A
SMILES: [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])(=O)[O-].[O-]P([O-])([O-])=O
InchI Identifier: InChI=1S/2H3O4P.3Zn/c2*1-5(2,3)4;;;/h2*(H3,1,2,3,4);;;/q;;3*+2/p-6
InchI Key: LRXTYHSAJDENHV-UHFFFAOYSA-H
Chemical Formula: Zn₃(PO₄)₂
CAS Number: 7779-90-0
EC Number: 231-944-3
Molar Mass: 386.11 g/mol
PubChem CID: 24501
InChI Key: CZMRCDWAGMRECN-UHFFFAOYSA-L
SMILES Notation: [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])=O.[O-]P([O-])=O
Chemical Formula: Zn₃(PO₄)₂
Empirical Formula: Zn₃P₂O₈
Molar Mass: 386.11 g/mol
CAS Number: 7779-90-0
EC Number: 231-944-3
PubChem CID: 24501
InChI: InChI=1S/2H3O4P.3Zn/c2*1-5(2,3)4;;;/h2*(H3,1,2,3,4);;;
InChI Key: CZMRCDWAGMRECN-UHFFFAOYSA-L
SMILES: [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])=O.[O-]P([O-])=O
MDL Number: MFCD00011103
EINECS Number: 231-944-3
RTECS Number: ZG8700000
HS Code: 2835.39 (Phosphates of other metals)
Properties of Zinc Phosphate:
Molecular Weight: 386.1 g/mol
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 8
Rotatable Bond Count: 0
Exact Mass: 383.69116 Da
Monoisotopic Mass: 381.69427 Da
Topological Polar Surface Area: 173 Ų
Heavy Atom Count: 13
Complexity: 36.8
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 5
Compound Is Canonicalized: Yes
Chemical formula: H4O12P2Zn3
Molar mass: 454.11 g·mol−1
Appearance: white solid
Density: 3.998 g/cm3
Melting point: 900 °C (1,650 °F; 1,170 K)
Solubility in water: insoluble
Magnetic susceptibility (χ): −141.0·10−6
cm3/mol
Refractive index (nD): 1.595
Specifications of Zinc Phosphate:
Assay (unspecified)
>=40% Zn
Structure of Zinc Phosphate:
Crystal structure: monoclinic
Thermochemistry of Zinc Phosphate:
Std enthalpy of formation (ΔfH⦵298): −2891.2 ± 3.3
Names of Zinc Phosphate:
IUPAC name:
Zinc phosphate
MeSH Entry Terms of Zinc Phosphate:
Cement, Zinc Phosphate
Zinc Phosphate Cement