Dibromomethane
Suppliers
Names
[ CAS No. ]:
74-95-3
[ Name ]:
Dibromomethane
[Synonym ]:
Dibromomethane
Methylenbromid
DBM
dibromo-methane
Dibrommethan
Methylene Bromide
METHYLENE DIBROMIDE
Methane,dibromo
CH2Br2
Methane, dibromo-
dibromomethylene
MFCD00000168
dibromo-methan
rcrawastenumberu068
EINECS 200-824-2
Chemical & Physical Properties
[ 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)
MSDS
Toxicological Information
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)
Safety Information
[ Symbol ]:
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
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ 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%
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