| send us an inquiry |
| LC5406 Sodium dithionite technical grade |
| Order number | Packaging | Quantity | Price € |
| AC32406 | Metal can | 1 kg | Inquire |
| AC32406 | Steel drum | 50 kg | Inquire |
| Product information | |
| Synonyms | Sodium hydrosulfite, Sodium hypodisulfite |
| Hill Formula | Na2O4S2 |
| Chemical formula | Na2S2O4 |
| HS Code | 2831 10 00 |
| EC number | 231-890-0 |
| Molar mass | 174.11 g/mol |
| EC index number | 016-028-00-1 |
| CAS number | 7775-14-6 |
| Chemical and physical data | |
| Ignition temperature | >200 °C DIN 51794 |
| Solubility | ca.250 g/l (20 °C) (slow decomposition) |
| Melting point | ca.100 °C (decomposition) |
| Molar mass | 174.11 g/mol |
| Density | 2.5 g/cm3 (20 °C) |
| Bulk density | 1250 kg/m3 |
| pH value | 7 – 9 (50 g/l, H2O, 20 °C) |
| Flash point | >100 °C DIN 51758 |
| Safety information according to GHS | |
| Hazard Statement(s) | H251: Self-heating; may catch fire. H302: Harmful if swallowed. EUH031: Contact with acids liberates toxic gas. |
| Signal Word | Danger |
| Hazard Pictogram(s) |   |
| Storage class | Spontaneously Combustible 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 7-22-31 May cause fire.Harmful if swallowed.Contact with acids liberates toxic gas. |
| S Phrase | S 7/8-26-28-43 Keep container tightly closed and dry.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.After contact with skin, wash immediately with plenty of water.In case of fire, use sand. Never use water. |
| Categories of danger | oxidizing, harmful |
| Hazard Symbol |  Harmful |
| Transport information | |
| Declaration (transport by sea) IMDG-Code | UN 1384 SODIUM DITHIONITE, 4.2, II |
| Declaration (transport by air) IATA-DGR | UN 1384 SODIUM DITHIONITE, 4.2, II |
| Toxicological data | |
| LD 50 oral | LD50 rat 2500 mg/kg |