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LC5250 Sodium sulfite anhydrous for analysis |
Order number | Packaging | Quantity | Price € |
AC32250 | Plastic bottle | 500 g | 14.22 |
AC32250 | Plastic bottle | 1 kg | 23.18 |
AC32250 | Plastic bottle | 5 kg | 93.60 |
AC32250 | Fiber carton | 50 kg | inquire |
Product information | |
Hill Formula | Na2O3S |
Chemical formula | Na2SO3 |
HS Code | 2832 10 00 |
EC number | 231-821-4 |
Molar mass | 126.04 g/mol |
CAS number | 7757-83-7 |
Chemical and physical data | |
Solubility | 220 g/l (20 °C) |
Melting point | >500 °C (decomposition) |
Molar mass | 126.04 g/mol |
Density | 2.63 g/cm3 (20 °C) |
Bulk density | 1480 kg/m3 |
pH value | 8.8 – 10 (50 g/l, H2O, 20 °C) |
Safety information | |
Storage class | 10 – 13 Other liquids and solids |
WGK | WGK 1 slightly water endangering |
Disposal | 6 Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E. |
Toxicological data | |
LD 50 oral | LD50 rat 2610 mg/kg |
Specifications | |
Assay (iodometric) | 97.0 – 100.5 % |
Identity | passes test |
Appearance of solution | passes test |
Insoluble matter | ≤ 0.005 % |
Free acid | passes test |
Titrable free base | ≤ 0.03 meq/g |
Chloride (Cl) | ≤ 0.02 % |
Thiosulfate (S2O3) | ≤ 0.03 % |
Heavy metals (as Pb) | ≤ 0.0005 % |
As (Arsenic) | ≤ 0.0001 % |
Cu (Copper) | ≤ 0.0005 % |
Fe (Iron) | ≤ 0.001 % |
Pb (Lead) | ≤ 0.0005 % |
Se (Selenium) | ≤ 0.0004 % |
Zn (Zinc) | ≤ 0.001 % |