MERCK 106505.1000 Sodium Dithionite Technical Grade CAS No.7775-14-6
| Description |
|---|
| Catalogue Number | 106505 |
| Synonyms | Sodium hydrosulfite, Sodium hypodisulfite |
| Product Information |
|---|
| CAS number | 7775-14-6 |
| EC index number | 016-028-00-1 |
| EC number | 231-890-0 |
| Hill Formula | Na₂O₄S₂ |
| Chemical formula | Na₂S₂O₄ |
| Molar Mass | 174.11 g/mol |
| HS Code | 2831 10 19 |
| Quality Level | MQ200 |
| Physicochemical Information |
|---|
| Density | 2.5 g/cm3 (20 °C) |
| Flash point | >100 °C |
| Ignition temperature | >200 °C |
| Melting Point | 100 °C (decomposition) |
| pH value | 5.5 - 8.5 (50 g/l, H₂O, 20 °C) |
| Bulk density | 1250 kg/m3 |
| Solubility | 250 g/l (slow decomposition) |
| Toxicological Information |
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| LD 50 oral | LD50 Rat 2500 mg/kg |
| Safety Information according to GHS |
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| Hazard Pictogram(s) | |
| Hazard Statement(s) | H251: Self-heating: may catch fire.H302: Harmful if swallowed.H319: Causes serious eye irritation.EUH031: Contact with acids liberates toxic gas. |
| Precautionary Statement(s) | P235: Keep cool.P264: Wash skin thoroughly after handling.P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P337 + P313: If eye irritation persists: Get medical advice/ attention.P403 + P235: Store in a well-ventilated place. Keep cool. |
| Signal Word | Danger |
| Storage class | 4.2 Pyrophoric and self-heating hazardous materials |
| WGK | WGK 1 slightly hazardous to water |
| Disposal | 6Sulfides 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 |
|---|
| Categories of danger | oxidizing, harmful |
| Storage and Shipping Information |
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| Storage | Store at +2°C to +30°C. |
| Transport Information |
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| Declaration (railroad and road) ADR, RID | UN 1384, 4.2, II |
| Declaration (transport by air) IATA-DGR | UN 1384, 4.2, II |
| Declaration (transport by sea) IMDG-Code | UN 1384, 4.2, II |
| Specifications |
|---|
| Assay (iodometric) | ≥ 85.0 % |
| Identity | passes test |
| Chloride (Cl) | ≤ 0.05 % |
| Fe (Iron) | ≤ 0.005 % |
| Global Trade Item Number |
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| Catalogue Number | GTIN |
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| 1065051000 | 04022536077796 |
| 1065059050 | 04022536077802 |
