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Name: Potassium sulfate
CAS Registry Number: 7778-80-5
Potassium sulfate (K2SO4) (in British English potassium sulphate, also called sulphate of potash, arcanite, or archaically known as potash of sulfur) is a non-flammable white crystalline salt which is soluble in water. The chemical is commonly used in fertilizers, providing both potassium and sulfur.
Potassium sulfate Basic information
Product Name: Potassium sulfate
Synonyms: Arcanum duplicatum;arcanumduplicatum;dipotassiumsulfate;Glazier's salt;K2SO4;kaliumsulphuricum;Potassium sulfate, alpha;potassiumsulfate(2:1)
CAS: 7778-80-5
MF: K2O4S
MW: 174.26
EINECS: 231-915-5
Product Categories: Inorganics;Analytical Reagents for General Use;O-P, Puriss p.a. ACS;Puriss p.a. ACS;Potassium Salts;PotassiumMetal and Ceramic Science;Salts;Synthetic Reagents;ACS GradeSynthetic Reagents;Essential Chemicals;Routine Reagents;N - RProtein Structural Analysis;Optimization ReagentsSynthetic Reagents;Inorganic Salts;Potassium;Salt Solutions;Volumetric Solutions;X-Ray Crystallography
Mol File: 7778-80-5.mol
Potassium sulfate Chemical Properties
mp 1067°C
bp 1689°C
density 2.66
Fp 1689°C
storage temp. Store at RT.
solubility H2O: 0.5 M at 20 °C, clear, colorless
Water Solubility 110 g/L (20 oC)
Merck 14,7674
Stability: Stable.
CAS DataBase Reference 7778-80-5(CAS DataBase Reference)
NIST Chemistry Reference Potassium sulfate(7778-80-5)
EPA Substance Registry System Sulfuric acid dipotassium salt(7778-80-5)
Safety Information
Safety Statements 22-24/25
WGK Germany 1
RTECS TT5900000
HS Code 31043000
Hazardous Substances Data 7778-80-5(Hazardous Substances Data)
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