Sodium hydrosulfite (7775-14-6)

Identification
Name:	Sodium hydrosulfite
Synonyms:	Sodium dithionite hydrate; Sodium hydrosulphite; Sodium dithionite
CAS:	7775-14-6
EINECS:	231-890-0
Molecular Formula:	Na2S2O4
Molecular Weight:	174.1
InChI:	InChI=1/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2
Molecular Structure:
Properties
Transport:	UN 1384
Density:	2.13
Stability:	Stable, but air sensitive. Incompatible with strong acids, strong oxidizing agents, water, moisture.
Solubility:	250 g/L (20 oC) in water
Appearance:	White solid
Specification:	First?aid measures?: Eyes:Flush eyes with plenty of water for at least 15 minutes,occasionally lifting the upper and lower eyelids. Get medical aid immediately. Skin:Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water. Ingestion:Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. Inhalation:Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult,give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation.
Report:	Reported in EPA TSCA Inventory.
Packinggroup:	II
Storage Temperature:	Store at RT.
Sensitive:	Moisture Sensitive
Color:	White or grayish-white crystalline powder Light-lemon-colored solid in powder or flake form White, colorless or yellow-white crystals
Safety Data
Hazard Symbols	Xn:Harmful