Supply Sodium metabisulfite CAS NO.7681-57-4

 

Sodium metabisulfite Chemical Properties

Melting point	>300 °C (lit.)
density	1.48
storage temp.	Store at +5°C to +30°C.
solubility	540 g/L (20°C)
form	Powder/Solid
Specific Gravity	1.48
color	White to slightly yellow
PH	3.5-5 (50g/l, H2O, 20℃)
Odor	Sulphorous
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
Exposure limits	ACGIH: TWA 5 mg/m3 NIOSH: TWA 5 mg/m3
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
OEB	B
OEL	TWA: 5 mg/m3
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

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