Langfang Naco New Material(Chemical Reagent Department)
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Potassium sulfate

Potassium sulfate

Molecular formula: K2SO4
Molecular weight: 174.26
CAS NO: 7778-80-5
[Character] Colorless or white crystal or powder. It tastes bitter and salty. The density of 2.662. Melting point 1069℃, boiling point 1689℃. Soluble in water, insoluble in ethanol, acetone and carbon disulfide.
[To use] Used as analytical reagents, such as reference reagents, kai-type nitrogen determination catalysts. It is also used in the preparation of potassium salts and the pharmaceutical industry. Used as a medicine (laxative). It is also used as biofertilizer, and is used to make alum, glass and potash.
[Standard] The impurity content is calculated by the highest content

Specification

Name of index

Analytically pure-AR Chemically pure-CP
Content (K2SO4) ≥99.0 ≥98.5
PH (50g/L,25℃) 5.0~8.0 5.0~8.0
Clarity test qualified qualified
Water insolubles ≤0.005 ≤0.01
Chloride(Cl) ≤0.0005 ≤0.001
Total nitrogen(N) ≤0.0005 ≤0.001
Sodium (Na) ≤0.03 ≤0.1
Calcium(Ca) ≤0.01 ≤0.02
Ferrum(Fe) ≤0.0002 ≤0.0005
Arsenic(As) ≤0.0001 ≤0.0005
Heavy metal (Pb) ≤0.0005 ≤0.001

[Packing] Plastic inside and outside woven, kraft paper bag or cardboard bucket, net weight 25kg.

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