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295485

Sigma-Aldrich

Bromomethane

≥99%

Sinónimos:

Methyl bromide

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About This Item

Fórmula empírica (notación de Hill):
CH3Br
Número de CAS:
74-83-9
Peso molecular:
94.94
Beilstein/REAXYS Number:
1209223
EC Number:
200-813-2
MDL number:
MFCD00000166
UNSPSC Code:
12352100
PubChem Substance ID:
24857788
NACRES:
NA.22

vapor density

3.3 (20 °C, vs air)

Quality Level

200

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

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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

Recommended products

Brass control valve Z146943 or either of brass regulators Z146706 and Z146714 is recommended.

Optional

Referencia del producto
Descripción
Precios

Regulator

Referencia del producto
Descripción
Precios

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_germany

WGK 3

flash_point_f

<-22.0 °F - liquid

flash_point_c

< -30 °C - liquid

ppe

Eyeshields, Faceshields, Gloves

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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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
Alan V Barak et al.
Journal of economic entomology, 104(1), 69-74 (2011-03-17)
Ash (Fraxinus spp.) logs, infested with fully developed, cold-acclimated larval and prepupal emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), were fumigated with methyl bromide (MeBr) at 4.4 and 10.0 degrees C for 24 h. Concentrations X time dosages of
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
Paul E Stromberg et al.
Clinical toxicology (Philadelphia, Pa.), 51(3), 182-185 (2013-03-12)
Methyl bromide is a halogenated aliphatic hydrocarbon that exists as a colorless gas or a volatile liquid. Methyl bromide historically had been used in fire extinguishers but is more commonly used as a gas fumigant for soil-borne diseases and pests.
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
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