sodium sulphite anhydrous 95% extrapure

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Description

CAS 7757-83-7
Molecular Formula Na2SO3
Molecular Weight 126.04
Shelf Life 60 Months
Physical Properties
Physical State at 20 °C Solid Colour White crystalline
Odour Odorless pH Value 9.0 – 10.5 at 126 g/l at 25 °C
Melting Point/ Freezing Point [°C] 500°C Density [g/cm3] 2.63
Solubility in Water [% weight] 126 g/l at 20 °C – completely soluble
Specifications
Appearance White crystalline powder Assay (Iodometric) 95 – 100.5%
So2 Min 48% Identity Passes test
Appearance of Solution Passes test Thiosulphate (S2O3) Max 0.04%
Arsenic (As) Max 0.0002% Heavy Metal (As Pb) Max 0.001%
Iron (Fe) Max 0.001% Copper (Cu) Max 0.0005%
Selenium (Se) Max 0.001% Zinc (Zn) Max 0.0025%
Dangerous Goods Information
UN Number – DG Class –

sodium sulphite anhydrous 95% extrapure

$20.80

SKU C02515-00500-HS Category
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