Safety data for sodium thiosulfate pentahydrate  
Safety data for sodium thiosulfate pentahydrate 



General
  Synonyms: sodium thiosulphate pentahydrate, sodium thiosulfate 5-hydrate, 
  sodium hyposulfite 
  Molecular formula: Na2S2O3 . 5H2O 
  CAS No: 10102-17-7 
  EC No: 
Physical data
  Appearance: translucent crystals or white powder 
  Melting point: 48 C 
  Boiling point: 
  Vapour density: 
  Vapour pressure: 
  Density (g cm-3): 1.73 
  Flash point: 
  Explosion limits: 
  Autoignition temperature: 
  Water solubility: appreciable 
   
Stability
  Stable. Incompatible with strong acids, iodine, mercury. 
Toxicology
  Dust may act as a skin, eye or respiratory irritant. 
  Toxicity data 
  (The meaning of any abbreviations which appear in this section is given here.) 

  Risk phrases 
  (The meaning of any risk phrases which appear in this section is given here.) 
  R36 R37 R38. 
Transport information
  Non-hazardous for air, sea and road freight. 
Personal protection
  Avoid breathing dust. 
  Safety phrases 
  (The meaning of any safety phrases which appear in this section is given 
  here.) 
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This information was last updated on June 19, 2001. We have tried to make it as 
accurate and useful as possible, but can take no responsibility for its use, 
misuse, or accuracy. We have not verified this information, and cannot guarantee 
that it is up-to-date.