295485
Bromomethane
≥99%
Synonym(s):
Methyl bromide
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About This Item
Empirical Formula (Hill Notation):
CH3Br
CAS Number:
Molecular Weight:
94.94
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-813-2
Beilstein/REAXYS Number:
1209223
MDL number:
vapor density
3.3 (20 °C, vs air)
Quality Level
vapor pressure
1420 mmHg ( 20 °C)
assay
≥99%
autoignition temp.
996 °F
expl. lim.
~16 %
bp
4 °C (lit.)
mp
−94 °C (lit.)
solubility
water: soluble
density
3.3 g/mL at 25 °C (lit.)
SMILES string
CBr
InChI
1S/CH3Br/c1-2/h1H3
InChI key
GZUXJHMPEANEGY-UHFFFAOYSA-N
General description
Bromomethane (methyl bromide) is the most effective soil fumigant for killing plant pests, its use is being phased out because its emissions from soil can lead to stratospheric ozone depletion. The bimolecular nucleophilic substitution (S(N)2) reaction of methyl bromide and OH- in aqueous solution has been investigated using a multilayered-representation quantum mechanical and molecular mechanics methodology.
Application
Please view www.aldrich.com/epaods regarding the EPA′s request for application information of Ozone Depleting Substances
Other Notes
Brass control valve Z146943 or either of brass regulators Z146706 and Z146714 is recommended.
signalword
Danger
Hazard Classifications
Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Irrit. 2 - Muta. 2 - Ozone 1 - Press. Gas Liquefied gas - Skin Irrit. 2 - STOT RE 2 - STOT SE 3
target_organs
Central nervous system, Respiratory system
Storage Class
2A - Gases
wgk
WGK 3
flash_point_f
<-22.0 °F - liquid
flash_point_c
< -30 °C - liquid
ppe
Eyeshields, Faceshields, Gloves
Regulatory Information
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Richeng Xuan et al.
Environmental science & technology, 44(23), 9080-9085 (2010-11-10)
Despite generally being considered the most effective soil fumigant, methyl bromide (MeBr) use is being phased out because its emissions from soil can lead to stratospheric ozone depletion. However, a large amount is still currently used due to Critical Use
Marcus Schortemeyer et al.
Journal of economic entomology, 104(3), 717-731 (2011-07-09)
Following the increasing international phasing out of methyl bromide for quarantine purposes, the development of alternative treatments for timber pests becomes imperative. The international accreditation of new quarantine treatments requires verification standards that give confidence in the effectiveness of a
Lygia T Budnik et al.
Environmental health : a global access science source, 11, 5-5 (2012-01-31)
Although ozone-depleting methyl bromide was destined for phase-out by 2005, it is still widely applied as a consequence of various critical-use-exemptions and mandatory international regulations aiming to restrict the spread of pests and alien species (e.g. in globalized transport and