Sulfurous Acid

Modify Date: 2024-01-01 18:42:54

Sulfurous Acid Structure
Sulfurous Acid structure
Common Name Sulfurous Acid
CAS Number 7782-99-2 Molecular Weight 82.07910
Density 1.03 g/mL at 25 °C(lit.) Boiling Point N/A
Molecular Formula H2O3S Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name sulfurous acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.03 g/mL at 25 °C(lit.)
Molecular Formula H2O3S
Molecular Weight 82.07910
Exact Mass 81.97250
PSA 76.74000
LogP 0.54680
Index of Refraction 1.788
Stability Stable. Incompatible with strong bases.

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WT2775000
CHEMICAL NAME :
Sulfurous acid
CAS REGISTRY NUMBER :
7782-99-2
LAST UPDATED :
199701
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
H2-O3-S
MOLECULAR WEIGHT :
82.08
WISWESSER LINE NOTATION :
..H2.S-O3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human
DOSE/DURATION :
500 ug/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea Gastrointestinal - nausea or vomiting Gastrointestinal - other changes
REFERENCE :
AEXPBL Archiv fuer Experimentelle Pathologie und Pharmakologie. (Leipzig, Ger. Dem. Rep.) V.1-109, 1873-1925. For publisher information, see NSAPCC. Volume(issue)/page/year: 54,421,1906 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82237 No. of Facilities: 97 (estimated) No. of Industries: 5 No. of Occupations: 5 No. of Employees: 722 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82237 No. of Facilities: 30 (estimated) No. of Industries: 3 No. of Occupations: 3 No. of Employees: 521 (estimated) No. of Female Employees: 150 (estimated)

 Safety Information

Hazard Codes C
Risk Phrases R20
Safety Phrases S26-S36/37/39-S45
RIDADR UN 1833 8/PG 2
WGK Germany 1
RTECS WT2775000
Packaging Group II
Hazard Class 8

 Synthetic Route

 Synonyms

Sulphurous acid
sodium sulfite
hydrogen sulphite (bisulphite)
SULFUROUS ACID
dihydroxy sulphoxide
Schweflige saure [German]
acide sulfureux
Sulfur dioxide solution
acido sulfuroso
MFCD00011335
EINECS 231-973-1
UN1833
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