Sodium Sulphate 98% Anhydrous ACS

Sodium sulphate is the sodium salt of sulphuric acid. When anhydrous, it is a white crystalline solid of formula Na2SO4 known as the mineral thenardite; the decahydrate Na2SO4·10H2O is found naturally as the mineral mirabilite, and in processed form has been known as Glauber's salt or, historically, sal mirabilis since the 17th century. Another solid is the heptahydrate, which transforms to mirabilite when cooled. It is a major commodity chemical product.

Minimum Assay: >98%
Molecular Formula: Na2SO4
Molecular Weight: 142.04 g/mol
Melting Point: 884°C
Alkalinity (Na2CO3):< 0.1%
Thiosulphates (S2O3): < 0.01%
Iron (Fe): < 0.0005%
Heavy metals (Pb): < 0.001%
Selenium (Se): < 0.0005%
Arsenic (As): < 0.0001%
Lead (Pb): < 0.0002%
Mercury (Hg): < 0.0001%

Cas Number: 7757-82-6

Einecs Number: 231-820-9

HS Code / Commodity Code: 28331100

Hazard Phrases: H0001