Potassium sulfate | 7778-80-5

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/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.7456	0.5776	1.008	90	90	90

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)

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

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

1of2

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

1of6

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

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-11-24	Potassium Sulfate 7778-80-5	US $3.60 / kg	1kg	≥99%	3000tons/month	Hebei Andu Technology Com.,Ltd
2024-11-22	Potassium sulfate 7778-80-5	US $6.00 / kg	1kg	99%	2000KG/Month	HebeiShuoshengImportandExportco.,Ltd
2024-11-21	Potassium sulfate 7778-80-5	US $79.00-38.00 / kg	1kg	99%	20ton	Hebei Zhuanglai Chemical Trading Co Ltd

Potassium Sulfate
7778-80-5
US $3.60 / kg
≥99%
Hebei Andu Technology Com.,Ltd

Potassium sulfate
7778-80-5
US $6.00 / kg
99%
HebeiShuoshengImportandExportco.,Ltd

Potassium sulfate
7778-80-5
US $79.00-38.00 / kg
99%
Hebei Zhuanglai Chemical Trading Co Ltd

Potassium sulfate Spectrum

Potassium sulfate(7778-80-5)IR1 Potassium sulfate(7778-80-5)IR2 Potassium 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

1of4

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