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Sodium metabisulfite, Puriss., meets analytical specification of BP, FCC, NF, Ph. Eur., E223, dry, 97-100.5%

Code: 13459-4X5KG D2-114

Puriss., meets analytical specification of BP, FCC, NF, Ph. Eur., E223, dry, 97-100.5%


 

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Ghs07
Ghs05
Assay:97.0 - 100.5 %
Assay of Sulfur Dioxide:65.0 - 67.4 %
pH (5 %, 20°C):3.5 to 5.0
pH (10% solution):4.0 to 5.0
Arsenic (As):max. 2 ppm
Copper (Cu):max. 0.001 %
Iron (Fe):max. 10 ppm
Mercury (Hg):max. 1 ppm
Lead (Pb):max. 2 ppm
Selenium (Se):max. 5 ppm
Zinc (Zn):max. 0.001 %
Heavy metals (as Pb):max. 10 ppm
Chloride (Cl):max. 0.01 %
Thiosulfate (S2O3):max. 0.02 % (complying)
Appearance of the solution:complying
Residual solvents:complying
Cas Number7681-57-4
This product has met the following criteria: