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Chlorosulfonic acid

Names

[ CAS No. ]:
7790-94-5

[ Name ]:
Chlorosulfonic acid

[Synonym ]:
sulfonic chloride acid
Monochlorosulfuric acid
MFCD00011523
chlorosulfonic acid
sulfo-chloride
EINECS 232-234-6
chloro-sulphonic acid
Chlorosulphuric acid
mesyl chloride
Sulfuric chlorohydrin
Sulfonic acid,monochloride
Chlorosulfuric acid

Chemical & Physical Properties

[ Density]:
2.0±0.1 g/cm3

[ Boiling Point ]:
158.0±9.0 °C at 760 mmHg

[ Melting Point ]:
-80°C

[ Molecular Formula ]:
HClO3S

[ Molecular Weight ]:
116.524

[ Flash Point ]:
158°C

[ Exact Mass ]:
115.933495

[ PSA ]:
62.75000

[ LogP ]:
0.11

[ Vapour density ]:
4 (vs air)

[ Vapour Pressure ]:
1.4±0.6 mmHg at 25°C

[ Index of Refraction ]:
1.501

[ Water Solubility ]:
reacts

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
FX5730000
CHEMICAL NAME :
Chlorosulfuric acid
CAS REGISTRY NUMBER :
7790-94-5
LAST UPDATED :
199710
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
Cl-H-O3-S
MOLECULAR WEIGHT :
116.52
WISWESSER LINE NOTATION :
QSGO&O

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
50 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - cyanosis Skin and Appendages - hair
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0570953
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
926 mg/m3/1H
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Liver - changes in liver weight Blood - changes in spleen
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0570953 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-UNITED KINGDOM:TWA 1 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81770 No. of Facilities: 139 (estimated) No. of Industries: 3 No. of Occupations: 8 No. of Employees: 1690 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81770 No. of Facilities: 42 (estimated) No. of Industries: 5 No. of Occupations: 18 No. of Employees: 3257 (estimated) No. of Female Employees: 247 (estimated)

Safety Information

[ Hazard Codes ]:
C:Corrosive

[ Risk Phrases ]:
R14;R35;R37

[ Safety Phrases ]:
S26-S45

[ RIDADR ]:
UN 1754 8/PG 1

[ WGK Germany ]:
1

[ RTECS ]:
FX5730000

[ Packaging Group ]:
I

[ Hazard Class ]:
8

[ HS Code ]:
2806200000

Synthetic Route

Precursor & DownStream

Customs

[ HS Code ]: 2806200000


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