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Potassium sulfate

Potassium sulfate Structure
Potassium sulfate structure
CAS No.
7778-80-5
Chemical Name:
Potassium sulfate
Synonyms
POTASSIUM SULPHATE;K2SO4;sop;231-915-5;KSO;Kso4;KSO2;WATER R PHE;Kaliumsulfat;Potassium in
CBNumber:
CB9854321
Molecular Formula:
K2O4S
Molecular Weight:
174.2592
MDL Number:
MFCD00011388
MOL File:
7778-80-5.mol
MSDS File:
SDS
Last updated:2024-11-18 18:16:58
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Potassium sulfate Properties

Melting point 1067°C
Boiling point 1689°C
Density 2.66
Flash point 1689°C
storage temp. Inert atmosphere,Room Temperature
solubility H2O: 0.5 M at 20 °C, clear, colorless
form Very Fine Crystals or Powder
color White
Specific Gravity 2.662
Odor Odorless
PH Range ~7
PH 5.5-7.5 (25℃, 0.5M in H2O)
Water Solubility 110 g/L (20 ºC)
λmax λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
crystal system Nogata
Merck 14,7674
Space group Pnma
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.74560.57761.008909090
Dielectric constant 5.9（0.0℃）
Stability Stable.
InChIKey OTYBMLCTZGSZBG-UHFFFAOYSA-L
CAS DataBase Reference 7778-80-5(CAS DataBase Reference)
FDA 21 CFR 184.1643; 582.1643; 558.311
Substances Added to Food (formerly EAFUS) POTASSIUM SULFATE
EWG's Food Scores 1
NCI Dictionary of Cancer Terms SOP
FDA UNII 1K573LC5TV
NIST Chemistry Reference Potassium sulfate(7778-80-5)
EPA Substance Registry System Potassium sulfate (7778-80-5)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P260-P262-P305+P351+P338
Safety Statements  22-24/25
WGK Germany  1
RTECS  TT5900000
TSCA  Yes
HS Code  31043000
Toxicity LD50 orally in Rabbit: 6600 mg/kg
NFPA 704
1
1 0

Potassium sulfate price More Price(81)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich RES0797P-A7 Potassium sulfate PharmaGrade, EP, Manufactured under appropriate GMP controls for pharma or biopharmaceutical production. 7778-80-5 1pkg $1343 2024-03-01 Buy
Sigma-Aldrich 1.05153 Potassium sulfate for analysis EMSURE? ACS,ISO,Reag. Ph Eur 7778-80-5 500g $108 2024-03-01 Buy
Sigma-Aldrich 1.05153 Potassium sulfate for analysis EMSURE? ACS,ISO,Reag. Ph Eur 7778-80-5 1kg $167 2024-03-01 Buy
Sigma-Aldrich 12658 Potassium sulfate meets analytical specification of Ph. Eur., 99-101% 7778-80-5 1kg $138 2024-03-01 Buy
Sigma-Aldrich 1.05153 Potassium sulfate for analysis EMSURE? ACS,ISO,Reag. Ph Eur 7778-80-5 5kg $584 2024-03-01 Buy
Product number Packaging Price Buy
RES0797P-A7 1pkg $1343 Buy
1.05153 500g $108 Buy
1.05153 1kg $167 Buy
12658 1kg $138 Buy
1.05153 5kg $584 Buy

Potassium sulfate Chemical Properties,Uses,Production

Description

Potassium sulfate (K2SO4) is a kind of chemical compounds that is commonly used in agriculture. The dominant application of potassium sulfate is as a fertilizer, which is commonly applied to offer both potassium and sulfur, thus improving the quality and yield of crops growing in soils that lack an adequate supply of this essential elements. Besides, the crude potassium sulfate is sometimes employed in the production of glass. It also has applications in other industries, which is used as a flash reducer in artillery propellant charges and as an alternative blast media similar to soda in the process of soda blasting.
potassium sulfate powder
potassium sulfate powder

Chemical Properties

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.

Chemical Properties

Potassium sulfate, sulfate of potash, K2SO4, white solid, soluble. Common constituent of potassium salt minerals.

Physical properties

Colorless or white crystals or white granules or powder; rhombohedral structure; bitter taste; density 2.66 g/cm3; melts at 1,069°C; vaporizes at 1,689°C; moderately soluble in water, 12 g/100mL at 25°C and 24g/100mL at 100°C; slightly soluble in glycerol; insoluble in alcohol, acetone, and carbon disulfide.

Occurrence

Potassium and sodium sulfates and their double sulfates with calcium and magnesium occur naturally in various salt lakes. Potassium sulfate also occurs in certain volcanic lava. Its double salt with magnesium occurs in nature, as the mineral langbeinite.
Potassium sulfate is used in fertilizers as a source of potassium and sulfur, both of which are essential elements for plant growth. Either in sim-ple form or as a double salt with magnesium sulfate, potassium sulfate is one of the most widely consumed potassium salts in agricultural applications. It is preferred over potassium chloride for certain types of crops; such as, tobac-co, citrus, and other chloride-sensitive crops. Some other applications include making gypsum cements; to make potassium alum; in the analysis of Kjeldahl nitrogen; and in medicine.

Uses

Technical grades are used in fertilizers for manufacture of potassium alum, potassium carbonate and glass; the reagent grade is used in the Kjeldahl determination of nitrogen.

Uses

Potassium Sulfate is a flavoring agent that occurs naturally, consisting of colorless or white crystals or crystalline powder having a bitter, saline taste. it is prepared by the neutralization of sulfuric acid with potassium hydroxide or potassium carbonate.

Uses

potassium sulfate is a reagent in cosmetics. Potassium sulfate is an inorganic salt with a primary function as a viscosity-increasing agent.

Production Methods

Potassium sulfate is produced by various methods, selection of process depending on availability and cost of raw materials.
The salt may be obtained from its naturally occurring mineral, langbeinite,K2SO4?2MgSO4. The ore first is crushed and washed with water to separate sodium chloride. After that, magnetite is separated from the washed langbei-nite by magnetic separation. After the separation of these two major impuri-ties, the purified double salt is treated with an aqueous solution of potassium chloride to obtain potassium sulfate:
K2SO4?2MgSO4 + 4KCl →3K2SO4+ 2MgCl2
The solution is filtered to remove insoluble residues and the products are separated from their aqueous mixture by crystallization.
Potassium sulfate also is produced from the mineral kieserite, MgSO4?H2O by treatment with potassium chloride. The intermediate double salt obtained reacts further with potassium chloride to form potassium sulfate:MgSO4?H2O + 2KCl + 4H2O →K2SO4?MgSO4?6H2O + MgCl2
K2SO4?MgSO4?6H2O + 2KCl →2K2SO4+ MgCl2
Potassium sulfate is separated from the more soluble magnesium chloride by crystallization.
Also, potassium sulfate can be made by two other processes in which no naturally occurring mineral is employed. In the Mannheim process, the salt is produced by action of sulfuric acid on potassium chloride:2KCl + H2SO4→K2SO4+ 2HCl
In Hargreaves process, which is a slight variation of the Mannheim method, potassium sulfate is made by heating a mixture of potassium chlo-ride, sulfur dioxide, air and water:4KCl + 2SO2+ 2H2O + o2→2K2SO4+ 4HCl.

Definition

Potassium sulfate is a potassium salt and an inorganic potassium salt. It is a white crystalline powder, K2SO4, soluble inwater and insoluble in ethanol;rhombic or hexagonal; r.d. 2.66; m.p.1069°C. It occurs naturally assch nite (Strassfurt deposits) and inlake brines, from which it is separatedby fractional crystallization. Ithas also been produced by the Hargreavesprocess, which involves theoxidation of potassium chloride withsulphuric acid. In the laboratory itmay be obtained by the reaction ofeither potassium hydroxide or potassiumcarbonate with sulphuric acid.Potassium sulphate is used in cements,in glass manufacture, as a food additive, and as a fertilizer(source of K+) for chloride-sensitiveplants, such as tobacco and citrus.

General Description

Potassium sulfate is an inorganic salt that can be prepared by reacting phosphogypsum and potassium chloride. It forms needlelike mullite particles on heating with aluminum sulfate (Al2(SO4)3) and silicon dioxide (SiO2). Its application to the soil has been reported to minimize the bronzing of rice plants. Its surface integration growth kinetics has been obtained in the temperature range of 20-50°C. The theoretical heat capacity curve of potassium sulfate in vapor phase has been obtained.

Flammability and Explosibility

Non flammable

Safety Profile

Moderately toxic to humans by ingestion. Moderately toxic experimentally by subcutaneous route. Swallowing large doses causes severe gastrointestinal tract effects. When heated to decomposition it emits toxic fumes of K2O and SOx. See also SULFATES.

Purification Methods

Potassium sulfate [7778-80-5] M 174.3, m 1069o, d 4 2.67 It crystallised from distilled water (4mL/g at 20o; 8mL/g at 100o) between 100o and 0o.

References

https://en.wikipedia.org/wiki/Potassium_sulfate
http://www.cropnutrition.com/potassium-sulfate
http://study.com/academy/lesson/what-is-potassium-sulfate-structure-uses-formula.html

Potassium sulfate Preparation Products And Raw materials

Raw materials

Potassium hydroxide Potassium carbonate Hydrochloric acid alunite Magnesium sulfate
Potassium chloride Octadecanamine Ammonium sulfate Magnesium sulfate heptahydrate Sulfuric acid

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Preparation Products

Compound fertilizer Aluminium potassium sulfate dodecahydrate ethyl 3-ethylpyrazolyl-5-carboxylate 4-Hydroxybenzoic acid ACENAPHTHYLENE
Acrolein 4-[2-(diethylamino)ethoxy]benzophenone Nitrogen phosphorus potassium mixed fertilizer Potassium pyrosulfate Nitrogen-Phosphorus-Potassium compound fertilizer with sulphur
Calcium phosphate monobasic Nicosulfuron N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine Potassium bicarbonate Mixed and compound fertilizer
POTASSIUM METABISULFITE Pyruvic acid Potassium bromate Calcium phosphate dibasic ALPHA-D-GLUCOPYRANOSE 1-PHOSPHATE DIPOTASSIUM SALT HYDRATE
Potassium persulfate AMMONIUM CHROMATE Compound fertilizer of potassium sulfate polyhalite Chromium(III) oxide
Compound fertilizer,high concentration L-Methionine Water flush fertilizer

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Potassium sulfate Suppliers

Global( 490)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Weibang Biotechnology Co., Ltd 		+8615531157085 abby@weibangbio.com China 8812 58
Shaanxi Dideu Medichem Co. Ltd 		+86-29-81148696 +86-15536356810 1022@dideu.com China 3882 58
Hebei Mojin Biotechnology Co., Ltd 		+86 13288715578 +8613288715578 sales@hbmojin.com China 12840 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-13131129325 sales1@chuanghaibio.com China 5893 58
Henan Bao Enluo International TradeCo.，LTD 		+86-17331933971 +86-17331933971 deasea125996@gmail.com China 2472 58
Wuhan Quanjinci New Material Co.,Ltd. 		+86-15271838296; +8615271838296 kyra@quanjinci.com China 1512 58
Hebei Saisier Technology Co., LTD 		+86-18400010335 +86-18034520335 admin@hbsaisier.cn China 1015 58
Hebei Longbang Technology Co., LTD 		+86-18633929156 +86-18633929156 admin@hblongbang.com China 941 58
Hebei Andu Technology Com.,Ltd 		+86-86-17798073498 +8617798073498 admin@hbandu.com China 299 58
HebeiShuoshengImportandExportco.,Ltd 		+86-18532138899 +86-18532138899 L18532138899@163.com China 939 58
Supplier Advantage
Hebei Weibang Biotechnology Co., Ltd 		58
Shaanxi Dideu Medichem Co. Ltd 		58
Hebei Mojin Biotechnology Co., Ltd 		58
Hebei Chuanghai Biotechnology Co,.LTD 		58
Henan Bao Enluo International TradeCo.，LTD 		58
Wuhan Quanjinci New Material Co.,Ltd. 		58
Hebei Saisier Technology Co., LTD 		58
Hebei Longbang Technology Co., LTD 		58
Hebei Andu Technology Com.,Ltd 		58
HebeiShuoshengImportandExportco.,Ltd 		58

View Lastest Price from Potassium sulfate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Potassium sulfate pictures 2024-11-25 Potassium sulfate
7778-80-5
 US $6.00 / kg 1kg 99% 2000KG/Month HebeiShuoshengImportandExportco.,Ltd
Potassium sulfate pictures 2024-11-25 Potassium sulfate
7778-80-5
 US $6.00 / KG 1KG 99% 20TONS Hebei Longbang Technology Co., Ltd
Potassium Sulfate pictures 2024-11-25 Potassium Sulfate
7778-80-5
 US $3.60 / kg 1kg ≥99% 3000tons/month Hebei Andu Technology Com.,Ltd

Potassium sulfate Spectrum

Potassium sulfate(7778-80-5)IR1Potassium sulfate(7778-80-5)IR2Potassium sulfate(7778-80-5)Raman

7778-80-5(Potassium sulfate)Related Search:

POTASSIUM ACRYLATE Potassium Acetate Potassium chloride Potassium sorbate Potassium bromate
Losartan potassium Sulfuric acid Ammonium sulfate CERIC SULFATE Hydrazine sulfate
Silver sulfate LANTHANUM SULFATE OCTAHYDRATE Magnesium sulfate Ferrous sulfate heptahydrate sulfate
Potassium nitrate POTASSIUM CYANIDE POTASSIUM SULFATE FERTILIZER,POTASSIUM SULFATE TS Sulfate Of Potash

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Arcanum duplicatum arcanumduplicatum dipotassiumsulfate Glazier's salt kaliumsulphuricum Potassium sulfate, alpha potassiumsulfate(2:1) POTASSIUM SULFATE ANHYDROUS POWDER POTASSIUM SULPHATE extrapure AR Potassium Sulfate, granular Potassium Sulfate, granular(low nitrogen) FISHERTAB ST-35 KJELDAHL TABLETS FISHERTAB ST-AUTO KJELDAHL TABLETS KELMATE(R) KJELDAHL DIGESTION MIXTURE KELMATE(R) KJELDAHL DIGESTION MIXTURE CT-37 KELMATE(R) KJELDAHL DIGESTION MIXTURE MT-37 KELMATE(R) KJELDAHL DIGESTION MIXTURE ST-35 KELMATE(R) KJELDAHL DIGESTION MIXTURE ST-AUTO KELMATE(R) KJELDAHL DIGESTION MIXTURE TT-35 KELMATE(R) KJELDAHL DIGESTION MIXTURE TT-50 KELMATE(R) N KJELDAHL DIGESTION MIXTURE NO 100 KELMATE(R) N KJELDAHL DIGESTION MIXTURE NO 200 KELMATE(R) N KJELDAHL DIGESTION MIXTURE NO 210 KELMATE(R) N KJELDAHL DIGESTION MIXTURE NO 510 KELMATE(R) N KJELDAHL DIGESTION MIXTURE NO 600 KELMATE(R) N KJELDAHL DIGESTION MIXTURE NO 610 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 100 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 110 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 200 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 210 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 300 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 410 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 510 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 600 KELMATE(R) N KJELDAHL DIGESTION MIXTURE PACKETS, NO 610 KELMATE(R) NT KJELDAHL DIGESTION MIXTURE, NO 710 KELMATE(R) NT KJELDAHL DIGESTION MIXTURE NO 810 KJELTAB CATALYSTS KJELTABS IB 61 Potassium sulfate,99+%,for analysis,anhydrous, granular Potassium sulfate,99+%,for analysis,anhydrouspowder POTASSIUM SULFATE, 99+%, FOR ANALYSIS ACS Potassium sulfate, anhydrous, granular, for analysis Potassium sulfate, anhydrous powder, for analysis Potassium sulfate, for analysis ACS Potassium sulfate,agricultural POTASSIUM SULFATE POWDER 99+% A.C.S.& POTASSIUM SULFATE SIGMAULTRA POTASSIUM SULFATE POWDER, PURE POTASSIUM SULFATE R. G., REAG. ACS, REAG. ISO, REAG. PH. POTASSIUM SULFATE PLANT CELL CULTURE*TES TED POTASSIUM SULFATE, ACS Potassium Sulfate, Powder, Reagent Kalii sulfas WATER R PHE Potassium sulfate(VI) Potassium sulfate, 99.995% trace metals basis POTASSIUM SULFATE BIOXTRA