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

Supplier: Honeywell Chemicals
Danger

Synonyms: Disodium disulphite, di-Sodium disulphite, Sodium pyrosulphite, Disodiumdisulphite, Sodium disulphite

13459-1KG 13459-5KG 13459-25KG 13459-4X5KG 13459-6X1KG
HONC13459-1KGEA 162 SGD
HONC13459-1KG HONC13459-5KG HONC13459-25KG HONC13459-4X5KG HONC13459-6X1KG
Sodium metabisulphite, dry 97-100.5%, Puriss., meets analytical specification of BP, FCC, NF, Ph. Eur., E223, Fluka™
Sodium metabisulphite
Formula: Na₂S₂O₅
MW: 190,11 g/mol
Boiling Pt: Decomposes on heating
Melting Pt: >150 °C (dec.)
Density: 2,36 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00167602
CAS Number: 7681-57-4
EINECS: 231-673-0
REACH: 01-2119531326-45
Merck Index: 12,08784
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Specification Test Results

Assay 97.0 - 100.5 %
Assay of Sulfur Dioxide 65.0 - 67.4 %
pH (5 %, 20°C) 3.5 - 5.0
pH (10% solution) 4.0 - 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) complying
Appearance of the solution complying
Residual solvents complying

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