应用
Sodium thiosulfate is used in volumetric analysis to estimate the concentration of certain compounds in solution (hydrogen peroxide) as well as chlorine content in bleaching powder and water. It is used to prepare S-alkylthiosulfonates. Furthermore, it is used in the tanning of leather and in photographic processing. It is used as an antidote to cyanide poisoning and acts as a safe disposal medium in chemistry laboratories when working with bromine, iodine and other strong oxidizers. It is an important component in hand warmers and heating pads.

备注
Hygroscopic. Incompatible with strong acids, strong oxidizing agents, iodine and mercury.

基本信息

MDL
MFCD00003499

EINECS
231-867-5

分子式
Na₂O₃S₂

分子量
158.10

密度
1.667

灵敏度
Hygroscopic. Ambient temperatures.

形态
Crystalline powder

溶解性
Soluble in water. Insoluble in alcohol.

Merck
14,8694

安全信息

RTECS
XN6476000

TSCA
是