Sodio metabisolfito, secco 97-100.5%, Puriss., meets analytical specification of BP, FCC, NF, Ph. Eur., E223, Fluka™
Fornitore: Honeywell Chemicals
|
Pericolo
|
Synonyms:
Disolfito di disodio, Sodio bisolfito
Formula:
Na₂S₂O₅ Peso molecolare: 190.11 g/mol Punto di ebollizione: Dec. (in riscaldamento) Punto di fusione: >150 °C (dec.) Densità: 2.36 g/cm³ (20 °C) Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00167602 CAS Number: 7681-57-4 EINECS: 231-673-0 REACH: 01-2119531326-45 Merck Index: 12,08784 |
|
Risultati del test di specificazione
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 |
Learn more

About VWR
Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...