106528.0500
Sodium disulfite GR for analysis
| Ürün bilgisi |
| 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 |
| Kimyasal ve fiziksel veri |
| 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) |
| GHS'e göre güvenlik bilgisi |
| 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. |
| Güvenlik bilgisi |
| 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 |
 Harmful
|
| Nakliye bilgisi |
| Declaration (railroad and road) ADR, RID |
Kein Gefahrgut |
| Declaration (transport by sea) IMDG-Code |
No Dangerous Good |
| Declaration (transport by air) IATA-DGR |
No Dangerous Good |
| Toksikolojik veri |
| LD 50 oral |
LD50 rat 1540 mg/kg |
| LD 50 dermal |
LD50 rat > 2000 mg/kg |
| Spesifikasyonlar |
| 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 % |
| Thiosulphate (S2O3) |
passes test |
| Heavy metals (as Pb) |
≤ 0.001 % |
| As (Arsenic) |
≤ 0.0001 % |
| Fe (Iron) |
≤ 0.0005 % |
