106507.0500
Sodium dithionite LAB
| Ürün bilgisi |
| 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 |
| Kimyasal ve fiziksel veri |
| 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 |
| GHS'e göre güvenlik bilgisi |
| 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 |
4.2S 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. |
| Güvenlik bilgisi |
| 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
|
| Nakliye bilgisi |
| Declaration (railroad and road) ADR, RID |
UN 1384 Natriumdithionit, 4.2, II |
| 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 |
| Toksikolojik veri |
| LD 50 oral |
LD50 rat 2500 mg/kg |
| Spesifikasyonlar |
| Assay (iodometric) |
≥ 87 % |
| Identity |
passes test |
| Chloride (Cl) |
≤ 0.01 % |
| Fe (Iron) |
≤ 0.002 % |
