POTASSIUM SULFATE

Potassium sulfate, with the chemical formula K2SO4, is an inorganic chemical compound and a necessary nutrient source for plants.

Potassium sulfate is soluble in water but insoluble in ethanol.

Potassium sulfate is primarily used as a fertilizer to improve crop yields.

CAS Number: 7778-80-5

EC Number: 231-915-5

Molecular Formula: K2O4S

Molecular Weight (g/mol): 174.25

Synonyms: Potassium sulfate, 7778-80-5, DiPotassium sulfate, Potassium sulphate, Sulfuric acid dipotassium salt, Sulfuric acid, potassium salt, Arcanum duplicatum, Sulfuric acid, dipotassium salt, Potassiumsulfate, dipotassium;sulfate, Tartarus vitriolatus, Kali sulphuricum, Potassium sulfate (2:1), K2SO4, Potassium (as sulfate), MFCD00011388, Sulfuric acid potassium salt (1:2), 10233-01-9, 1K573LC5TV, INS NO.515(I), CHEBI:32036, INS-515(I), E-515(I), Kalium sulphuricum, Caswell No. 702, Potassium sulfate [JAN], Sulfato de potasio, Potassium sulfate (K2(SO4)), HSDB 5047, EINECS 231-915-5, EINECS 233-558-0, EPA Pesticide Chemical Code 005603, Sulfuric acid potassium salt, UNII-1K573LC5TV, Kaliumsulfat, Potassium sulfate, ACS, Potassium sulfate [USAN:JAN], Sulfate of Potash, Potassium sulfate ,(S), EC 231-915-5, Potassium sulfate (K2SO4), Potassium sulfate [MI], KALI SULPHURICUM [HPUS], Potassium sulfate [FCC], CHEMBL2021424, DTXSID6029701, Potassium sulfate [HSDB], Potassium sulfate [INCI], Potassium sulfate [USAN], Potassium sulfate (JP17/USAN), Potassium sulfate [VANDF], Potassium sulfate [MART.], Potassium sulfate [WHO-DD], BLI801 Component Potassium sulfate, Potassium sulfate, Biochemical grade, BLI-801 Component Potassium sulfate, AKOS025243249, Sulfuric acid, potassium salt (1:?), DB14499, Potassium sulfate [ORANGE BOOK], POTASSIUM (AS SULFATE) [VANDF], Potassium sulfate [EP MONOGRAPH], Potassium sulphate, containing in the dry state more than 52 per cent by weight of K2O, FisherTab™ MT-37 Kjeldahl Tablets, FisherTab™ ST-35 Kjeldahl Tablets, FisherTab™ ST-AUTO Kjeldahl Tablets, Potassium sulfate, 99.997% (metals basis), D01726, Potassium sulfate, Trace metals grade 99.95%, Q193054, SUPREP BOWEL PREP KIT COMPONENT Potassium sulfate, Potassium sulfate COMPONENT OF SUPREP BOWEL PREP KIT

Potassium sulfate can be described as an inorganic chemical compound having the chemical formula K2SO4. 

Potassium sulfate can also be referred to as either dipotassium sulfate or Sulfuric acid dipotassium salt. 

Potassium sulfate occurs naturally in salt lakes and volcanic lava. 

Potassium sulfate appearance is as a colourless white crystalline powder or simply crystals. 

Potassium sulfate is purely odourless and has a hard, saline-like and bitter taste. 

Potassium sulfate dissolves in water, but Potassium sulfate is insoluble in ethanol. 

Potassium sulfate is an inorganic chemical compound. 

Potassium sulfate is also known as Sulfuric acid dipotassium salt or diPotassium sulfate. 

Potassium sulfate occurs naturally in volcanic lava and salt lakes. 

Potassium sulfate appears as a colourless to white crystalline powder or crystals. 

Potassium sulfate is odourless and has a bitter, hard and saline-like taste. 

Potassium sulfate dissolves in water but insoluble in ethanol.

Potassium sulfate with chemical formula K2SO4.

Potassium sulfate is a water-insoluble white crystalline potassium salt. 

Potassium sulfate contains 50-53% potassium (K2O) and average sulfur content of 16-20%. 

Potassium sulfate also carries sulfur, which is the necessary nutrient for the plants. 

Sulfur deficiency is used as a source of potassium and sulfur in cases. 

Potassium sulfate is not to be confused with calcium compounds.

Potassium sulfate is composed of acid salt and alkaline salt after 17th century and Potassium sulfate has survived until today.

Potassium sulfate is obtained from brine from the Salar de Atacama and is used in the manufacture of drywall in the construction industry.

Potassium sulfate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 000 to < 10 000 000 tonnes per annum. Potassium sulfate is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing. Potassium sulfate contains potassium (K) and sulfur (S) – two of the essential nutrients that plants require to achieve optimum growth and reach their maximum potential.  Potassium fertilizer is commonly added to improve the yield and quality of plants growing in soils that are lacking an adequate supply of this essential nutrient.  Most fertilizer K comes from ancient salt deposits located throughout the world.  The word “potash” is a general term that most frequently refers to potassium chloride (KCl), but Potassium sulfate also applies to all other K-containing fertilizers, such as Potassium sulfate (Potassium sulfate, commonly referred to as sulfate of potash, or SOP). Potassium sulfate can be used as a dietary ingredient and as a nutrient.  Potassium works with sodium to normalize heart rhythms and to regulate the body’s waste balance.  Potassium sulfate also preserves proper alkalinity of body fluids and assists in reducing high blood pressure.  Potassium sulfate is a moderately water and acid soluble Potassium source for uses compatible with sulfates.  Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal.  Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble.  Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions.  Metallic ions can also be dispersed utilizing suspended or coated nanoparticles and deposited utilizing sputtering targets and evaporation materials for uses such as solar cells and fuel cells.  Potassium sulfate is generally immediately available in most volumes.  High purity, submicron and nanopowder forms may be considered. Potassium sulfate is an important nutrient for plants. Potassium sulfate fertilizer also contains 18% sulfur in sulfate form. Sulfur is an important nutrient, just like nitrogen, phosphorus and potassium, and is found in the structure of proteins in plants. Potassium sulfate has benefits against plants. Potassium deficiency is mostly seen in irrigated agriculture and rainy regions. Potassium sulfate fertilizer should be given to sandy soils that are poor in organic matter. Potassium sulfate is mostly used in potatoes, tobacco, vegetables, fruits, citrus fruits, legumes, corn, cotton, sugar beet and greenhouses. If Potassium sulfate is not given in sufficient amount, yellow or reddish brown spots can be seen on the parts of the green leaves of the plants. Potassium balances the acid-sugar ratio in the fruit, affects the coloring, increases the taste and odor, and minimizes the fruit drop problem. Potassium sulfate provides increased endurance against frost and cold. Applications of Potassium sulfate: Potassium sulfate is used in gypsum cements, to make alum and glass, as a food additive, in fertilizers, as an accelerator in wallboard, as an expansion control agent for dental materials, as a medical and veterinary cathartic, and as a veterinary sulfate source. Other Applications: Agricultural chemicals (non-pesticidal) Abrasives Planting agents Surface treating agents Uses of Potassium sulfate: The dominant use of the Potassium sulfate compound can be given as a fertilizer.  Potassium sulfate does not comprise chloride, which can result in harmful to a few of the crops.  Potassium sulfate can be preferred for these crops, which include some fruits, vegetables, and tobacco.  Crops with less sensitivity can still require Potassium sulfate for optimal growth if the respective soil accumulates chloride from irrigation water. The crude salt can also be used occasionally in glass manufacturing.  Potassium sulfate can be used as a flash reducer in artillery propellant charges.  Potassium sulfate also reduces flareback, muzzle flash, and blast overpressure. Sometimes, Potassium sulfate can be used as an alternative blast media same as the soda in soda blasting because Potassium sulfate is harder and similarly water-soluble. Potassium sulfate is also used in pyrotechnics in combination with potassium nitrate to further generate a purple flame. Potassium sulfate is dominantly used as a fertilizer for crops which include tobacco, some vegetables, and fruits. Potassium sulfate is used as a salt substitute. Potassium sulfate is used in artillery propellant charges as a flash reducer. Potassium sulfate is used in soda blasting. Potassium sulfate is used as a supplement for animal feeds. Potassium sulfate is used in the production of lubricants and dyes. Potassium sulfate is used in the manufacturing of ceramics and glass. Potassium sulfate is used in the production of gypsum boards. Potassium sulfate is used to synthesize potassium aluminium sulfate. Potassium sulfate is used to produce gypsum cement. Potassium sulfate is used in explosives as a flash suppressant The dominant use of Potassium sulfate is as a fertilizer.  Potassium sulfate does not contain chloride, which can be harmful to some crops.  Potassium sulfate is preferred for these crops, which include tobacco and some fruits and vegetables.  Crops that are less sensitive may still require Potassium sulfate for optimal growth if the soil accumulates chloride from irrigation water. The crude salt is also used occasionally in the manufacture of glass.  Potassium sulfate is also used as a flash reducer in artillery propellant charges.  Potassium sulfate reduces muzzle flash, flareback and blast overpressure. Potassium sulfate is sometimes used as an alternative blast media similar to soda in soda blasting as Potassium sulfate is harder and similarly water-soluble. Potassium sulfate can also be used in pyrotechnics in combination with potassium nitrate to generate a purple flame. A 5% solution of Potassium sulfate was used in the beginning of the 20th century as a topical mosquito repellent. Widespread uses by professional workers: Potassium sulfate is used in the following products: fertilisers, plant protection products, washing & cleaning products and laboratory chemicals. Potassium sulfate is used in the following areas: agriculture, forestry and fishing and formulation of mixtures and/or re-packaging. Other release to the environment of Potassium sulfate is likely to occur from: outdoor use and indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners). Uses at industrial sites: Potassium sulfate is used in the following products: pH regulators and water treatment products, textile treatment products and dyes, leather treatment products and paper chemicals and dyes. Potassium sulfate has an industrial use resulting in manufacture of another substance (use of intermediates). Potassium sulfate is used in the following areas: formulation of mixtures and/or re-packaging, mining and health services. Potassium sulfate is used for the manufacture of: chemicals and mineral products (e.g. plasters, cement). Release to the environment of Potassium sulfate can occur from industrial use: in the production of articles, in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates) and industrial abrasion processing with high release rate (e.g. sanding operations or paint stripping by shot-blasting). Industry Uses: Agricultural chemicals (non-pesticidal) Catalyst Cleaning agent Lubricating agent Processing aids, not otherwise listed Propellants and blowing agents Soil amendments (fertilizers) Consumer Uses: Potassium sulfate is used in the following products: fertilisers and plant protection products. Other release to the environment of Potassium sulfate is likely to occur from: outdoor use, indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints). Other Consumer Uses: Agricultural chemicals (non-pesticidal) Not Known or Reasonably Ascertainable Soil amendments (fertilizers) Agricultural Use: Potassium is needed to complete many essential functions in plants, such as activating enzyme reactions, synthesizing proteins, forming starch and sugars, and regulating water flow in cells and leaves.  Often, concentrations of K in soil are too low to support healthy plant growth. Potassium sulfate is an excellent source of K nutrition for plants.  The K portion of the Potassium sulfate is no different from other common potash fertilizers.  However, Potassium sulfate also supplies a valuable source of S, which protein synthesis and enzyme function require.  Like K, S can also be too deficient for adequate plant growth.  Further, Cl- additions should be avoided in certain soils and crops.  In such cases, Potassium sulfate makes a very suitable K source. Potassium sulfate is only one-third as soluble as KCl, so Potassium sulfate’s not as commonly dissolved for addition through irrigation water unless there’s a need for additional S. Several particle sizes are commonly available.  Manufacturers produce fine particles (smaller than 0.015 mm) to make solutions for irrigation or foliar sprays, since they dissolve more rapidly.   And growers find foliar spraying of Potassium sulfate a convenient way to apply additional K and S to plants, supplementing the nutrients taken up from the soil.   However, leaf damage can occur if the concentration is too high. Management Practices: Growers frequently use Potassium sulfate for crops where additional Cl — from more common KCl fertilizer — is undesirable.  The partial salt index of Potassium sulfate is lower than in some other common K fertilizers, so less total salinity is added per unit of K.  The salt measurement (EC) from a Potassium sulfate solution is less than a third of a similar concentration of a KCl solution (10 millimoles per liter).  Where high rates of Potassium sulfate are needed, agronomists generally recommend applying Potassium sulfate in multiple doses.  This helps avoid surplus K accumulation by the plant and also minimizes any potential salt damage. Industrial Processes with risk of exposure: Cement Producing Glass Manufacturing Usage Areas of Potassium sulfate: Potassium sulfate helps the plant to withstand drought, cold, heat, and disease and pests.  Potassium sulfate enables plants to use water economically. Potassium sulfate is used in potatoes, tobacco, vegetables and fruits and improves their quality. Potassium sulfate is beneficial to use Potassium sulfate in oily plants such as olive, sunflower, canola, peanut and soybean. In addition, by increasing the quality of straw in cereals, Potassium sulfate prevents crop lying, which causes yield losses. Potassium sulfate can be used in all kinds of agricultural production. Product Types: Sulphate of Potash (SOP) is recommended for chlorid non tolerant crops: Sunflowers Grape vines Stone fruits Blackcurrants Seed potatoes Potatoes for human consumption Tomatoes Radish Kohirabi Peas Spinach Carrots Leek Horse-radish Chicory Pineapple Cucmber Kiwifruit Cofee Tea Starch potatoes for processing Tobacco Redcurrants Gooseberry Raspberry Strawberry Blackberry Blueberry Mango Citrus Pepper Chilli Avocado Cashew Almond Peach Cocoa Hops Pomes and stone Fruits (especialy cherries) Bush beans Broad beans Cucumber Melon Onion Letucce Early vegetables All crops under glass Conifers Flowers and ornaments as well as seedings and transplants of most plants Benefits of Potassium sulfate: Potassium sulfate is the most common potash fertilizer, serving as an excellent source of potassium and chloride, Potassium sulfate is not appropriate in all settings.  As many are discovering, SOP not only improves yield and crop quality, but Potassium sulfate also presents a number of advantages: Reduced Chlorides: Chloride makes up a significant component of MOP.  While this is preferable for some crops, Potassium sulfate can be damaging to others that are sensitive to chlorides, such as some fruits, vegetables, and nuts.  Many chloride-sensitive crops fall into the high-value category, so optimizing quality and yield are especially critical. Additionally, if MOP is added to soils already rich in chlorides, toxicity can occur.  When working with chloride-sensitive crops or chloride-rich soils, SOP provides an optimal solution, as Potassium sulfate is substantially lower in chlorides. Added Sulfur: In addition to potassium, Potassium sulfate also provides plant-available sulfur.  Sulfur deficiencies have become increasingly common in recent years, making products that include the secondary nutrient increasingly desirable. Lower Salinity: Potassium sulfate has a lower salt index than most potash fertilizers, making Potassium sulfate the preferred choice when soil salinity is a concern. Action Mechanism of Potassium sulfate: Potassium is the major cation (positive ion) inside animal cells, while sodium is the major cation outside animal cells.  The concentration differences of these charged particles causes a difference in electric potential between the inside and outside of cells, known as the membrane potential.  The balance between potassium and sodium is maintained by ion pumps in the cell membrane.  The cell membrane potential created by potassium and sodium ions allows the cell generate an action potential—a "spike" of electrical discharge.  The ability of cells to produce electrical discharge is critical for body functions such as neurotransmission, muscle contraction, and heart function.  Potassium is also an essential mineral needed to regulate water balance, blood pressure and levels of acidity. Structure and Properties of Potassium sulfate: Two crystalline forms are known.  Orthorhombic β-K2SO4 is the common form, but Potassium sulfate converts to α-K2SO4 above 583 °C. These structures are complex, although the sulfate adopts the typical tetrahedral geometry. Potassium sulfate does not form a hydrate, unlike sodium sulfate.  The salt crystallizes as double six-sided pyramids, classified as rhombic.  They are transparent, very hard and have a bitter, salty taste.  The salt is soluble in water, but insoluble in solutions of potassium hydroxide, or in absolute ethanol. Production of Potassium sulfate: Approximately 1.5 million tons were produced in 1985, typically by the reaction of potassium chloride with sulfuric acid, analogous to the Mannheim process for producing sodium sulfate. The process involves intermediate formation of potassium bisulfate, an exothermic reaction that occurs at room temperature: KCl + H2SO4 → HCl + KHSO4 The second step of the process is endothermic, requiring energy input: KCl + KHSO4 → HCl + K2SO4 Potassium is a relatively abundant element in the Earth’s crust, and production of potash fertilizer occurs in every inhabited continent.  However, Potassium sulfate is rarely found in a pure form in nature.  Instead Potassium sulfate is naturally mixed with salts containing magnesium, sodium and chloride (Mg, Na and Cl, respectively).  These minerals require additional processing to separate their components.  Historically, Potassium sulfate was made by reacting KCl with sulfuric acid.  However, researchers later discovered that they could manipulate a number of earth minerals to produce Potassium sulfate, now the most common method of production.  For example, natural K-containing minerals (such as kainite and schoenite) are mined and carefully rinsed with water and salt solutions to remove byproducts and produce Potassium sulfate.  The mining industry uses a similar process to harvest Potassium sulfate from the Great Salt Lake in Utah and from underground mineral deposits. In New Mexico, Potassium sulfate is separated from langbeinite minerals by reacting Potassium sulfate with a solution of KCl, which removes the byproducts (such as Mg) and leaves Potassium sulfate.  Similar processing techniques are used in many parts of the world, depending on the raw materials accessible. The steps followed to obtain Potassium sulfate are as follows: Crushing the mineral langbeinite Washing it Extracting the mineral Separating Potassium sulfate is then treated with an aqueous solution of potassium chloride to separate the 2 parts of the double salt from each other. Potassium sulfate compound can also be produced synthetically.  This is possible by treating potassium chloride with raw sulfuric acid. Manufacturing Methods of Potassium sulfate: Reaction of potassium chloride with langbeinite ore, schoenite obtained from kainite ore, or sodium sulfate (glaserite is an isolated intermediate); reaction of potassium chloride with sulfuric acid or sulfur dioxide, water and oxygen; recovery from sugar wastes By treatment of potassium chloride either with sulfuric acid or with sulfur dioxide, air, & water (hargreaves process).  By fractional crystallization of natural sulfate ore; from salt lake brines. The potassium salt of sulfuric acid. First potash salt produced commercially in us from anything other than wood ashes.  Potassium sulfate was produced from alunite.  Sulfate has also been made from cement mill dust, langbeinite, & from muriate by treatment with sodium or magnesium sulfate or with sulfuric acid. General Manufacturing Information of Potassium sulfate: Industry Processing Sectors: Agriculture, Forestry, Fishing and Hunting All Other Basic Inorganic Chemical Manufacturing All Other Basic Organic Chemical Manufacturing All Other Chemical Product and Preparation Manufacturing Explosives Manufacturing Fabricated Metal Product Manufacturing Miscellaneous Manufacturing Not Known or Reasonably Ascertainable Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing Petroleum Lubricating Oil and Grease Manufacturing Pharmaceutical and Medicine Manufacturing Natural Resources of Potassium sulfate: The mineral form of Potassium sulfate, arcanite, is relatively rare.  Natural resources of Potassium sulfate are minerals abundant in the Stassfurt salt.  These are cocrystallizations of Potassium sulfate and sulfates of magnesium, calcium, and sodium. Relevant minerals are: Kainite, KMg(SO4)·Cl·3H2O Schönite (now known as picromerite), K2SO4·MgSO4·6H2O Leonite, K2SO4·MgSO4·4H2O Langbeinite, K2Mg2(SO4)3 Aphthitalite (previously known as glaserite), K3Na(SO4)2 Polyhalite, K2SO4·MgSO4·2CaSO4·2H2O The Potassium sulfate can be separated from some of these minerals, like kainite, because the corresponding salt is less soluble in water. Kieserite, MgSO4·H2O, can be combined with a solution of potassium chloride to produce Potassium sulfate. History of Potassium sulfate: Potassium sulfate has been known since early in the 14th century.  Potassium sulfate was studied by Glauber, Boyle, and Tachenius.  In the 17th century, Potassium sulfate was named arcanuni or sal duplicatum, as Potassium sulfate was a combination of an acid salt with an alkaline salt.  Potassium sulfate was also known as vitriolic tartar and Glaser's salt or sal polychrestum Glaseri after the pharmaceutical chemist Christopher Glaser who prepared Potassium sulfate and used medicinally. Known as arcanum duplicatum ("double secret") or panacea duplicata in pre-modern medicine, Potassium sulfate was prepared from the residue (caput mortuum) left over from the production of aqua fortis (nitric acid, HNO3) from nitre (potassium nitrate, KNO3) and oil of vitriol (sulphuric acid, H2SO4) via Glauber's process: 2 KNO3 + H2SO4 → 2 HNO3 + K2SO4 The residue was dissolved in hot water, filtered, and evaporated to a cuticle.  Potassium sulfate was then left to crystallise.  Potassium sulfate was used as a diuretic and sudorific. According to Chambers's Cyclopedia, the recipe was purchased for five hundred thalers by Charles Frederick, Duke of Holstein-Gottorp.  Schroder, the duke's physician, wrote wonders of Potassium sulfate great uses in hypochondriacal cases, continued and intermitting fevers, stone, scurvy, and more. Reactions of Potassium sulfate: Acidification: Potassium hydrogen sulfate (also known as potassium bisulfate), KHSO4, is readily produced by reacting K2SO4 with sulfuric acid.  Potassium sulfate forms rhombic pyramids, which melt at 197 °C (387 °F).  Potassium sulfate dissolves in three parts of water at 0 °C (32 °F).  The solution behaves much as if Potassium sulfate two congeners, K2SO4 and H2SO4, were present side by side of each other uncombined; an excess of ethanol the precipitates normal sulfate (with little bisulfate) with excess acid remaining. The behavior of the fused dry salt is similar when heated to several hundred degrees; Potassium sulfate acts on silicates, titanates, etc., the same way as sulfuric acid that is heated beyond Potassium sulfate natural boiling point does.  Hence Potassium sulfate is frequently used in analytical chemistry as a disintegrating agent.  Identifiers of Potassium sulfate: CAS Number: 7778-80-5 ChEBI: CHEBI:32036  ChEMBL: ChEMBL2021424 ChemSpider: 22915 ECHA InfoCard: 100.029.013 EC Number: 231-915-5 E number: E515(i) (acidity regulators, ...) KEGG: D01726 check PubChem CID: 24507 RTECS number: TT5900000 UNII: 1K573LC5TV CompTox Dashboard (EPA): DTXSID6029701 InChI: InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 Key: OTYBMLCTZGSZBG-UHFFFAOYSA-L check InChI=1/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 Key: OTYBMLCTZGSZBG-NUQVWONBAU SMILES: [K+].[K+].[O-]S([O-])(=O)=O CAS number: 7778-80-5 EC number: 231-915-5 Grade: ACS,ISO,Reag. Ph Eur Hill Formula: K₂O₄S Chemical formula: K₂SO₄ Molar Mass: 174.27 g/mol HS Code: 3105 10 00 Quality Level: MQ300 Synonyms: Potassium sulfate Linear Formula: K2SO4 CAS Number: 7778-80-5 Molecular Weight: 174.26 EC / List no.: 231-915-5 CAS no.: 7778-80-5 Mol. formula: K2O4S Linear Formula: K2SO4 MDL Number: MFCD00011388 EC No.: 231-915-5 Beilstein/Reaxys No.: N/A Pubchem CID: 24507 IUPAC Name: DiPotassium sulfate SMILES: [K+].[K+].[O-]S([O-])(=O)=O InchI Identifier: InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 InchI Key: OTYBMLCTZGSZBG-UHFFFAOYSA-L CAS: 7778-80-5 Molecular Formula: K2O4S Molecular Weight (g/mol): 174.25 MDL Number: MFCD00011388 InChI Key: OTYBMLCTZGSZBG-UHFFFAOYSA-L PubChem CID: 24507 ChEBI: CHEBI:32036 IUPAC Name: diPotassium sulfate SMILES: [K+].[K+].[O-]S([O-])(=O)=O Properties of Potassium sulfate: Chemical formula: K2SO4 Molar mass: 174.259 g/mol Appearance: White solid Odor: odorless Density: 2.66 g/cm3 Melting point: 1,069 °C (1,956 °F; 1,342 K) Boiling point: 1,689 °C (3,072 °F; 1,962 K) Solubility in water: 111 g/L (20 °C) 120 g/L (25 °C) 240 g/L (100 °C) Solubility product (Ksp): 1.32 (120 g/L) Solubility: slightly soluble in glycerol insoluble in acetone, alcohol, CS2 Magnetic susceptibility (χ): −67.0·10−6 cm3/mol Refractive index (nD): 1.495 Boiling point: 1689 °C (1013 hPa) Density: 2.662 g/cm3 Melting Point: 1067 °C pH value: 7 (H₂O, 25 °C) Bulk density: 800 kg/m3 Solubility: 111 g/l CAS number: 7778-80-5 RTECS: TT5900000 Chemical Formula: K2SO4 Melting Point: 1069 ° C Boiling Point: 1689 ° C Appearance: Crystal structure (Orthorhombic) Solubility: 111 g / L (20 ° C) -120 g / L (25 ° C) -240 g / L (100 ° C) Density: 2.66 g / cm3 Compound Formula: K2O4S Molecular Weight: 174.27 Appearance: White Powder Melting Point: 1,069° C (1,956° F) Boiling Point: 1,689° C (3,072° F) Density: 2.66 g/cm3 Solubility in H2O: N/A Exact Mass: 173.879 g/mol Monoisotopic Mass: 173.879135 Da Molecular Weight: 174.26 Hydrogen Bond Donor Count: 0 Hydrogen Bond Acceptor Count: 4 Rotatable Bond Count: 0 Exact Mass: 173.87914262 Monoisotopic Mass: 173.87914262 Topological Polar Surface Area: 88.6 Ų Heavy Atom Count: 7 Complexity: 62.2 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: 3 Compound Is Canonicalized: Yes Specifications of Potassium sulfate: Assay (alkalimetric): ≥ 99.0 % Insoluble matter: ≤ 0.01 % pH-value (5 %; water, 25 °C): 5.5 - 7.5 Chloride (Cl): ≤ 0.0005 % Total nitrogen (N): ≤ 0.0005 % Heavy metals (as Pb): ≤ 0.0005 % As (Arsenic): ≤ 0.0002 % Ca (Calcium): ≤ 0.005 % Fe (Iron): ≤ 0.0005 % Mg (Magnesium): ≤ 0.002 % Na (Sodium): ≤ 0.02 % Boiling Point: 1689°C Melting Point: 1,067°C Color: White pH: 6 to 8 Physical Form: Solid Quantity: 500 g Assay Percent Range: ≥99 % Formula Weight: 174.26 Percent Purity: ≥99% Grade: Certified ACS Identification: Pass Test Packaging: Poly Bottle Chemical Name or Material: Potassium sulfate Related compounds of Potassium sulfate: Potassium hydrogen sulfate Potassium sulfite Potassium bisulfite Potassium persulfate Other anions: Potassium selenate Potassium tellurate Other cations: Lithium sulfate Sodium sulfate Rubidium sulfate Caesium sulfate Names of Potassium sulfate: Regulatory process names: Potassium sulfate Potassium sulfate Potassium sulfate CAS name: Sulfuric acid potassium salt (1:2) IUPAC names: DiPotassium sulfate dipottassium sulfate K2SO4 Kaliumsulfat not available Potasio Sulfato Potassium sulfate C&L Inventory, Registration dossier Potassium sulfate Potassium sulfate (KCKK) Potassium sulfate (KHSO4<1%) Potassium sulfate (VMU) POTASSIUM SULPHATE Potassium Sulphate Potassium SulphateSulphate of Potash pottasium sulfate Sels de potasse SOP Sulfuric acid dipotassium salt Sulphate of Potash Trade names: ABS-P69 Acid Potassium sulfate Arcanite DiPotassium sulfate diPotassium sulfate Dipotassium sulphate Extraits de vinasses GSOP HORTISUL K2SO4 KALISOP Kalium sulphuricum Registration dossier Kaliumsulfat MagPlon NPK 5-9-18 MagPlon NPK z borem 5-9-23 + 0,1 MagPlon PK 11-24 Monopotassium hydrogen sulfate MonoPotassium sulfate Multi-SOP Multi-SOP 0-0-51+42.5SO3 potash of sulfur Potassium acid sulfate Potassium bisulfate Potassium bisulphate Potassium hydrogen sulfate Potassium hydrogensulphate Potassium hydrosulfate (KHSO4) Potassium sulfate Potassium sulfate Potassium sulfate soluble grade Potassium Sulphate Potassium sulphate Potassium sulphate (technical grade) Sels de potassium soluSOP SOP SOP-3 MC Sulfate of potash Sulfato de potasa Sulfato de potasio Sulfuric acid dipotassium salt Sulfuric acid potassium salt sulfuric acid, potassium salt Sulphate of Potash Sulphate of potash sulphate of potash ®. SOP Other names: Potassium sulfate potassium sulphate Sulfuric acid potassium salt (1:2) Other identifier: 7778-80-5