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74-95-3

74-95-3 structure
74-95-3 structure

Name dibromomethane
Synonyms Dibromomethane
Methylenbromid
DBM
dibromo-methane
Dibrommethan
Methylene Bromide
METHYLENE DIBROMIDE
Methane,dibromo
CH2Br2
Methane, dibromo-
dibromomethylene
MFCD00000168
dibromo-methan
rcrawastenumberu068
EINECS 200-824-2
Density 2.4±0.1 g/cm3
Boiling Point 97.0±0.0 °C at 760 mmHg
Melting Point -52 °C
Molecular Formula CH2Br2
Molecular Weight 173.835
Flash Point -22.1±17.7 °C
Exact Mass 171.852310
LogP 1.54
Vapour density 6.05 (vs air)
Vapour Pressure 48.7±0.1 mmHg at 25°C
Index of Refraction 1.533
Stability Stable. Incompatible with strong oxidizing agents, aluminium, magnesium. Reacts violently with potassium.
Water Solubility 0.1 g/100 mL (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :
PA7350000
CHEMICAL NAME :
Methane, dibromo-
CAS REGISTRY NUMBER :
74-95-3
BEILSTEIN REFERENCE NO. :
0969143
LAST UPDATED :
199710
DATA ITEMS CITED :
16
MOLECULAR FORMULA :
C-H2-Br2
MOLECULAR WEIGHT :
173.85
WISWESSER LINE NOTATION :
E1E

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 :
108 mg/kg
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 - rat
DOSE/DURATION :
40 gm/m3/2H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
3738 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>4 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Rectal
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
5 gm/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - respiratory stimulation Gastrointestinal - changes in structure or function of salivary glands
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
333 mg/kg/28D-C
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Rodent - hamster Lung
DOSE/DURATION :
1 umol/L
REFERENCE :
TECSDY Toxicological and Environmental Chemistry. (Gordon & Breach Science Pub. Inc., 1 Park Ave., New York, NY 10016) V.3(3/4)- 1981- Volume(issue)/page/year: 13,205,1987 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 10 mg/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4051 No. of Facilities: 33 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 1065 (estimated) No. of Female Employees: 452 (estimated)
Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H332-H412
Precautionary Statements P273
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xn:Harmful
Risk Phrases R20;R52/53
Safety Phrases S24-S61-S45-S36/37-S16-S7
RIDADR UN 2664 6.1/PG 3
WGK Germany 2
RTECS PA7350000
Packaging Group III
Hazard Class 6.1
HS Code 2903399010
HS Code 2903399010
Summary 2903399010 dibromomethane。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:5.5%。general tariff:30.0%