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LC5404 Sodium disulfite (sodium metabisulfite) for analysis EMSURE ACS,Reag. Ph Eur |
Order number | Packaging | Quantity | Price € |
AC32404 | Plastic bottle | 100 g | 16.02 |
AC32404 | Plastic bottle | 500 g | 16.56 |
AC32404 | Plastic bottle | 1 kg | 19.8 |
AC32404 | Plastic bottle | 5 kg | 67.5 |
AC32404 | Fibre carton | 50 kg | Inquire |
Product information | |
Grade | ACS,Reag. Ph Eur |
Synonyms | Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite |
Hill Formula | Na2O5S2 |
HS Code | 2832 10 00 |
EC number | 231-673-0 |
Molar mass | 190.11 g/mol |
EC index number | 016-063-00-2 |
CAS number | 7681-57-4 |
Chemical and physical data | |
Solubility | 650 g/l (20 °C) |
Melting point | ca.150 °C (decomposition) |
Molar mass | 190.11 g/mol |
Density | 2.36 g/cm3 (20 °C) |
Bulk density | 1000 – 1200 kg/m3 |
pH value | 4.0 – 4.8 (50 g/l, H2O, 20 °C) |
Safety information according to GHS | |
Hazard Statement(s) | H302: Harmful if swallowed. H318: Causes serious eye damage. EUH031: Contact with acids liberates toxic gas. |
Precautionary Statement(s) | P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P313: Get medical advice/ attention. |
Signal Word | Danger |
Hazard Pictogram(s) | ![]() ![]() |
RTECS | UX8225000 |
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. |
Safety information | |
R Phrase | R 22-31-41 Harmful if swallowed.Contact with acids liberates toxic gas.Risk of serious damage to eyes. |
S Phrase | S 26-39-46 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.If swallowed, seek medical advice immediately and show this container or label. |
Categories of danger | harmful, irritant |
Hazard Symbol | ![]() |
Transport information | |
Declaration (transport by sea) IMDG-Code | No Dangerous Good |
Declaration (transport by air) IATA-DGR | No Dangerous Good |
Toxicological data | |
LD 50 oral | LD50 rat 1540 mg/kg |
LD 50 dermal | LD50 rat > 2000 mg/kg |
Specifications | |
Assay – iodometric |
98.0 – 100.5 % |
Identity | passes test |
Appearance of solution | passes test |
pH-value – 5 %; water |
3.5 – 5.0 |
Insoluble matter | ≤ 0.005 % |
Chloride (Cl) | ≤ 0.005 % |
Thiosulfate (S2O3) | ≤ 0.05 % |
Thiosulfate (S2O3) | passes test |
Heavy metals (as Pb) | ≤ 0.001 % |
As (Arsenic) | ≤ 0.0001 % |
Fe (Iron) | ≤ 0.0005 % |
1 kg |