[A17933] CAS 7757-83-7 | Sodium sulfite, anhydrous, 98%

CAS : 7757-83-7
MDL : MFCD00003503
EINECS : 231-821-4

Chemical Properties

Formula : Na2SO3
Formula weight : 126.04
Melting Point : >500° dec.
Density : 2.633
Sensitivity : Ambient temperatures.
Form : Powder
Solubility : Soluble in water and glycerol. Insoluble in alcohol, liquid chlorine and liquid ammonia.

Applications

Sodium sulfite is used in the photography industry to protect developing solutions from oxidation, in the pulp and paper industry, in water treatment as an oxygen scavenger agent, as a desulfurizing and dechlorinating agent in the leather industry and as a bleaching agent in textile industry. It is used as a preservative to prevent dried fruit from discoloring. It finds application as a sulfonation and sulfomethylation agent in the chemical industry. It is involved in the production of sodium thiosulfate. Other Application include forth flotation ores, oil recovery and making dyes.

Notes

Hygroscopic. Moisture and air sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids, strong oxidizing agents.Other References :
Merck : 14,8682

GHS Hazard and Precautionary Statements

Hazard Statements :
Precautionary Statements :
위험 문구 : 31Contact with acids liberates toxic gas.
안전 문구 : 60This material and its container must be disposed of as hazardous waste