Sodium metabisulfite CAS NO.7681-57-4

Sodium metabisulfite Basic information

Product Name:    Sodium metabisulfite
Synonyms:    Sodium metabisulfite, SO2 58.5% min;disodiummetabisulfite;disodiumpyrosulphite;fertisilo;metabisulfitedesodium;Sodiummetabisufite;SodiumMetabisulphiteAcs;SodiumMetabisulphiteExtraPure
CAS:    7681-57-4
MF:    2Na.O5S2
MW:    190.11
EINECS:    231-673-0
Product Categories:   
Mol File:    7681-57-4.mol

Sodium metabisulfite Chemical Properties
Melting point     >300 °C (lit.)
density     1.48
storage temp.     Store at RT.
solubility     540 g/L (20°C)
form     Powder/Solid
color     White to slightly yellow
Specific Gravity    1.48
Odor    Sulphorous
PH    3.5-5 (50g/l, H2O, 20℃)
PH Range    4.5 at 50 g/l at 20 °C
Water Solubility     540 g/L (20 ºC)
Sensitive     Air & Moisture Sensitive
Merck     14,8638
Stability:    Stable. Incompatible with strong oxidizing agents, strong acids. Contact with strong acids releases a poisonous gas. May be moisture and air sensitive.
InChIKey    HRZFUMHJMZEROT-UHFFFAOYSA-L
CAS DataBase Reference    7681-57-4(CAS DataBase Reference)
EPA Substance Registry System    Sodium metabisulfite (7681-57-4)

Safety Information
Hazard Codes     Xn,Xi
Risk Statements     22-31-41-36/37/38-52
Safety Statements     26-39-46-36-16
RIDADR     3260
WGK Germany     1
RTECS     UX8225000
TSCA     Yes
HS Code     2832 10 00
PackingGroup     III
Hazardous Substances Data    7681-57-4(Hazardous Substances Data)
Toxicity    LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg