| Specifications | |
|---|---|
| Assay (iodometric) | ≥ 85 % |
| Identity | passes test |
| Chloride (Cl) | ≤ 0.01 % |
| Fe (Iron) | ≤ 0.002 % |
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| Replacement Information | |
|---|---|
| Replacement Information | In North America 1.06507.0500 replaces and is identical to SX0530-1 |
Key Spec Table
| CAS # | EC Number | Hill Formula | Chemical Formula | Molar Mass |
|---|---|---|---|---|
| 7775-14-6 | 231-890-0 | Na₂O₄S₂ | Na₂S₂O₄ | 174.11 g/mol |
| Description | |
|---|---|
| Catalogue Number | 106507 |
| Replaces | SX0530; SX0530-1 |
| 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 00 |
| Applications | |
|---|---|
| Application | Sodium dithionite for analysis . Sodium dithionite for analysis CAS No. 7775-14-6, EC Number 231-890-0. Sodium dithionite for analysis MSDS (material safety data sheet) or SDS here. |
| 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 | |
|---|---|
| LD 50 oral | LD50 Rat 2500 mg/kg |
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |  |
| Hazard Statement(s) | H251: Self-heating: may catch fire. EUH031: Contact with acids liberates toxic gas. |
| Storage class | 4.2 Pyrophoric and self-heating hazardous materials |
| 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 | |
|---|---|
| Hazard Symbols |  Oxidising Harmful |
| Categories of danger | oxidizing, harmful |
| R Phrase | R 7-22-31 May cause fire.Harmful if swallowed.Contact with acids liberates toxic gas. |
| S Phrase | S 3/7-14 Keep container tightly closed in a cool place.Keep away from .?. |
| Storage and Shipping Information | |
|---|---|
| Storage | Store at +5°C to +30°C. |
| Transport Information | |
|---|---|
| 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 |
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