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Home > Encyclopedia > Potassium sulfate

Potassium sulfate

pharmaceutical raw materials
Potassium sulfate structure

Potassium sulfate 

structure
  • CAS No:

    7778-80-5

  • Formula:

    H2O4S.2K

  • Chemical Name:

    Potassium sulfate

  • Synonyms:

    Sulfuric acid potassium salt (1:2);Sulfuric acid dipotassium salt;Potassium sulfate (2:1);Arcanum duplicatum;Potassium sulfate;Sal polychrestum;Tartarus vitriolatus;Dipotassium sulfate;Potassium sulfate (K2(SO4));Potassium sulphate;Potassium sulfate (K2SO4);Sulfuric acid,dipotassium salt;Sulfate of potash

  • Categories:

    Cosmetic Ingredient  >  Viscosity Controlling

Description

Potassium sulfate,K2804, also known as salt of Lemery and arcanite, is a colorless crystalline solid that melts at 1072°C(1960 OF). It is soluble in water,but insoluble in alcohol. Potassium sulfate is used in manufacturing glass, aluminum, fertilizers, and in medicine. Potassium sulfate, sulfate of potash, K2SO4, white solid, soluble. Common constituent of potassium salt minerals.


DryPowder; DryPowder, PelletsLargeCrystals; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid|Colourless or white crystals or crystalline powder|COLOURLESS-TO-WHITE CRYSTALS.


Potassium sulfate is a potassium salt.

Potassium sulfate Basic Attributes

174.25900

173.87900

233-558-0

1K573LC5TV

1451

DTXSID6029701

COLORLESS OR WHITE CRYSTALS, OR WHITE GRANULES OR POWDER|COLORLESS, RHOMBIC OR HEXAGONAL CRYSTALS

3105100090

Characteristics

88.64000

-0.25720

white crystalline powder

2.66 g/cm3

1067 °C

1689 °C

1689ºC

INDEX OF REFRACTION: 1.494, 1.495, 1.497

H2O: 110 g/L (20 ºC)

Store at RT.

LD50 orally in Rabbit: 6600 mg/kg

ODORLESS

HARD, BITTER, SALINE TASTE

TRANSITION POINT: 588 °C

Safety Information

NONH for all modes of transport

1

S22-S24/25

TT5900000

Stable.

P264, P280, P305+P351+P338, P310, P33, P313

H318

Not combustible.

|Danger|H318 (92.19%): Causes serious eye damage [Danger Serious eye damage/eye irritation]|P280, P305+P351+P338, and P310|Aggregated GHS information provided by 536 companies from 9 notifications to the ECHA C&L Inventory.

In case of fire in the surroundings, use appropriate extinguishing media.

Sweep spilled substance into covered containers. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.

Evaporation at 20 °C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

The substance is mildly irritating to the eyes, skin and respiratory tract.

Use local exhaust.

Protective gloves.

Wear safety goggles.

Drug Information

Potassium is used to regulate hypokalemia as a primary condition or secondary to other medical conditions.|Diagnostic of organic and/or functional bowel diseases|Diseases of the intestines

Mostly urine but also skin and feces.

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.

Fresh air, rest.


Rinse and then wash skin with water and soap.


First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

SWALLOWING LARGE DOSES CAUSES SEVERE GI IRRITATION.

K(2)SO(4)

Cough. Sore throat.


Redness.


Redness. Pain.

Potassium sulfate Use and Manufacturing

Methods of Manufacturing

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|(A) BY TREATMENT OF POTASSIUM CHLORIDE EITHER WITH SULFURIC ACID OR WITH SULFUR DIOXIDE, AIR, & WATER (HARGREAVES PROCESS). (B) BY FRACTIONAL CRYSTALLIZATION OF NATURAL SULFATE ORE; (C) FROM SALT LAKE BRINES.|THE POTASSIUM SALT OF SULFURIC ACID. ...FIRST POTASH SALT PRODUCED COMMERCIALLY IN US FROM ANYTHING OTHER THAN WOOD ASHES. IT 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.

Uses

Used as a chemical fertilizer to enable economic plants to achieve sustained high quality and high yield, used in tea, vegetables, fruits and other crops; used as an analytical reagent (such as nitrogen determination), and also used in the synthesis of potassium salts and dietary substitutes for pharmaceutical industry use Salt. Used as a chemical fertilizer in agriculture. It is the raw material for making potash. The dye industry is used to make intermediates. Used as a fining agent in the glass industry. Used as auxiliary agent in perfume industry. Used in medicine as a laxative. Used as a general additive in the food industry. It is also used for serum protein biochemical test. Uses: Used as potash fertilizer, and also used in glass, dye, perfume, medicine and other industries. Serum protein biochemical test, determination of serum potassium and other potassium salts, Kjeldahl catalyst for nitrogen determination, preparation of other potassium salts. Special for glucosamine sulfate, medicines and health products, chemical reagents. Used as medicine, potash fertilizer, and used to make alum, glass and potassium carbonate, etc.


Agricultural chemicals (non-pesticidal)


Agricultural products (non-pesticidal)

Production

50,000,000 - 100,000,000 lb|(1977) 4.64X10+10 GRAMS (CONSUMPTION)|(1979) 4.11X10+10 GRAMS (CONSUMPTION)|(1985) 2.10X10+11 g

Agriculture, 63%; exports, 36%; other, 1% (1984)|CHEMICAL PROFILE: Potassium Sulfates. Fertilizer (mainly for non-grain or specialty crops), 56%; exports, 41%; other, 3%. /Potassium sulfates/|CHEMICAL PROFILE: Potassium sulfates. Demand: 1987: 227,600 tons K2O; 1988: 235,000 tons K2O; 1992 /projected/: 280,000 tons K2O. (Does not include imports, which totaled 30,000 tons K2O in 1987.) /Potassium sulfates/

GRADES: HIGHEST PURITY MEDICINAL; COMMERCIAL; CRUDE; CP; AGRICULTURAL|Commercial potassium sulfate contains not less than 48% soluble potash (K2O) chiefly as sulfate, and not more than 2.5% chlorine

Agriculture, forestry, fishing and hunting|Sulfuric acid potassium salt (1:2): ACTIVE|TECHNICAL GRADES ARE USED IN FERTILIZERS FOR MFR OF POTASSIUM ALUM, POTASSIUM CARBONATE & GLASS; THE REAGENT GRADE IS USED IN THE KJELDAHL DETERMINATION OF NITROGEN.|VET: RARE, AS LAXATIVE, AS IT IS MORE IRRITANT THAN SODIUM OR MAGNESIUM SULFATES. OCCASIONALLY USED IN WATER SOL TRACE MINERAL MIXES AS SOURCE OF POTASSIUM (44.8%) & AS AN ORAL SULFATE SOURCE IN RUMINANT EXPT.|VET: IT IS OF POTENTIAL VALUE AS SULFATE SOURCE, WHICH MAY REDUCE METHIONINE REQUIREMENTS OF POULTRY. A 0.1% LEVEL IN FEED OF LAYING HENS WAS ASSOCIATED WITH A 5% INCR IN EGG PRODUCTION.|IT IS WIDELY USED IN MFR OF TOBACCO FERTILIZERS, & PREMIUM GRADE GOODS FOR POTATOES, CITRUS & OTHER CROPS. PURE POTASSIUM SULFATE CONTAINS 54.05% K2O & 45.95% SO3. PRACTICALLY ALL FERTILIZER GRADE MATERIAL SOLD SINCE 1960 HAS CONTAINED OVER 50% K2O.

FLAME PHOTOMETRIC METHOD FOR DETERMINING POTASSIUM SULFATE.

EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives|Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern|Food additives|Human Drugs -> EU pediatric investigation plans|Human Drugs -> FDA Approved Drug Products with Therapeutic Equivalence Evaluations (Orange Book) -> Active Ingredients|Cosmetics -> Bulking; Viscosity controlling

Food Additives -> FLAVOUR_ENHANCER; SALT_SUBSTITUTE;

Computed Properties

Molecular Weight:174.26
Hydrogen Bond Acceptor Count:4
Exact Mass:173.87914262
Monoisotopic Mass:173.87914262
Topological Polar Surface Area:88.6
Heavy Atom Count:7
Complexity:62.2
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

Downstream Products

Price Analysis

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  • Data: 2026-07-24
  • Price: 4066.67Yuan/mt
  • Change: 0

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