sulfur dioxide
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IUPAC name :sulfur dioxide
InChI :InChI=1/O2S/c1-3-2
InChIKey :RAHZWNYVWXNFOC-UHFFFAOYAT
SMILES :O=S=O
cas number :7446-09-5
(EINECS) number :231-195-2
beilstein number :3535237
fema number :3039
molar refractivity :12.05 ± 0.5 cm3
parachor :115.4 ± 8.0 cm3
index of refraction :1.510 ± 0.05
surface tension :66.8 ± 7.0 dyne/cm
density :1.59 ± 0.1 g/cm3
polarizability :4.77 ± 0.5 10-24cm3
XlogP3-AA : 0.10
molecular weight : 64.0638000
formula :O2 S
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :172.892
182.3862
73.170

organoleptics :

properties :
appearence :colorless gas
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
melting point : -73.00 °C. @ 760.00 mm Hg
boiling point : -10.00 °C. @ 760.00 mm Hg
vapor pressure :1779.00000 mm/Hg @ 21.00 °C.
vapor density :2.26 ( Air = 1 )
flash point :not determined

safety :
most important hazard(s) :T - Toxic.
  R 23 - Toxic by inhalation.
R 34 - Causes burns.
S 01/02 - Keep locked up and out of the reach of children.
S 09 - Keep container in a well-ventilated place.
S 23 - Do not breath vapour.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
S 45 - In case of accident or if you feel unwell seek medical advice immediately.
Oral Toxicity(LD50) :
  Not determined
Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Inhalation-Rat  2520.00  ppm/1H
  National Technical Information Service. Vol. AD-A148-952

Inhalation-Mouse  3000.00  ppm/30M
  Journal of Combustion Toxicology. Vol. 4, Pg. 236, 1977.

 

safety in use :
 

safety references :
EPI System :view
IUCLID :view
NIOSH International Chemical Safety Cards :search
NIOSH Pocket Guide :search
Chemical Carcinogenesis Research Information System :Search
Cancer Citations :Search
Toxicology Citations :Search
EPA GENetic TOXicology :Search
Env. Mutagen Info. Center :Search
NLM Developmental and Reproductive Toxicity :Search
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
WISER :UN 2037
 
WGK Germany :1
 
 
 
 sulfur dioxide
(EINECS) number :231-195-2
RTECS :7446-09-5
chemidplus :007446095
EPA/NOAA CAMEO :hazardous materials
EPA Substance Registry Services :7446-09-5

references :
 sulfur dioxide
pubchem :166541

other :
synonyms :
 sulfurous anhydride
 sulfurous oxide

natural occurrence in :
not found in nature



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