f 142b

Modify Date: 2024-01-03 06:40:59

f 142b Structure
f 142b structure
Common Name f 142b
CAS Number 75-68-3 Molecular Weight 100.495
Density 1.2±0.1 g/cm3 Boiling Point -9.3±8.0 °C at 760 mmHg
Molecular Formula C2H3ClF2 Melting Point −131 °C(lit.)
MSDS N/A Flash Point -64.4±11.9 °C

 Names

Name 1-Chloro-1,1-difluoroethane
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.2±0.1 g/cm3
Boiling Point -9.3±8.0 °C at 760 mmHg
Melting Point −131 °C(lit.)
Molecular Formula C2H3ClF2
Molecular Weight 100.495
Flash Point -64.4±11.9 °C
Exact Mass 99.989136
LogP 1.33
Vapour density 3.49 (vs air)
Vapour Pressure 2473.6±0.0 mmHg at 25°C
Index of Refraction 1.316
Stability Stable. Highly flammable. Incompatible with strong oxidizing agents, metals - use brass regulators, steel cylinders for storage.

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
KH7650000
CHEMICAL NAME :
Ethane, 1-chloro-1,1-difluoro-
CAS REGISTRY NUMBER :
75-68-3
BEILSTEIN REFERENCE NO. :
1731584
LAST UPDATED :
199712
DATA ITEMS CITED :
14
MOLECULAR FORMULA :
C2-H3-Cl-F2
MOLECULAR WEIGHT :
100.50
WISWESSER LINE NOTATION :
GXFF

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2050 gm/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1758 gm/m3/2H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
500 gm/m3/4H/4W-I
TOXIC EFFECTS :
Endocrine - evidence of thyroid hypofunction
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
10 pph/16H/9D-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
DOSE :
1000 ppm/6H
SEX/DURATION :
female 3-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)

MUTATION DATA

TYPE OF TEST :
Mutation in microorganisms
TEST SYSTEM :
Bacteria - Salmonella typhimurium
DOSE/DURATION :
50 pph/24H
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 72,15,1984 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-GERMANY:TWA 1000 ppm (4170 mg/m3) JAN 1993 OEL-HUNGARY:TWA 100 mg/m3;STEL 200 mg/m3 JAN 1993 OEL-RUSSIA:STEL 3000 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82201 No. of Facilities: 11 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 357 (estimated)

 Safety Information

Hazard Codes F+:Highlyflammable;N:Dangerousfortheenvironment;
Risk Phrases R12;R59
Safety Phrases S38-S59
RIDADR UN 2517 2.1
WGK Germany 1
RTECS KH7650000
Hazard Class 2.1

 Synthetic Route

 Synonyms

1-Chloro-1,1-difluoroethane
Ethane, chlorodifluoro-
Difluoromonochloroethane
f 142b
R 142b
MFCD00000779
Monochlorodifluoroethane
difluorochloroethane
F142b
HFA142b
1,1-Difluoro-1-chloroethane
HCFC 142b
cfc142b
FC 142b
FKW 142b
FKW142b
chloro-1,1-difluoroethane
EINECS 200-891-8
chlorodifluoroethane
a-Chloroethylidene Fluoride
Ethane, 1-chloro-1,1-difluoro-
HFA 142b
Daiflon 142b
α-Chloroethylidene fluoride