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295485

Sigma-Aldrich

Brommethan

≥99%

Synonym(e):

Methylbromid

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About This Item

Empirische Formel (Hill-System):
CH3Br
CAS-Nummer:
74-83-9
Molekulargewicht:
94.94
Beilstein:
1209223
EG-Nummer:
200-813-2
MDL-Nummer:
MFCD00000166
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24857788
NACRES:
NA.22

Dampfdichte

3.3 (20 °C, vs air)

Qualitätsniveau

200

Dampfdruck

1420 mmHg ( 20 °C)

Assay

≥99%

Selbstzündungstemp.

996 °F

Expl.-Gr.

~16 %

bp

4 °C (lit.)

mp (Schmelzpunkt)

−94 °C (lit.)

Löslichkeit

water: soluble

Dichte

3.3 g/mL at 25 °C (lit.)

SMILES String

CBr

InChI

1S/CH3Br/c1-2/h1H3

InChIKey

GZUXJHMPEANEGY-UHFFFAOYSA-N

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Allgemeine Beschreibung

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.

Anwendung

Please view www.aldrich.com/epaods regarding the EPA′s request for application information of Ozone Depleting Substances

Empfohlene Produkte

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

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Signalwort

Danger

Gefahreneinstufungen

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

Zielorgane

Central nervous system, Respiratory system

Lagerklassenschlüssel

2A - Gases

WGK

WGK 3

Flammpunkt (°F)

<-22.0 °F - liquid

Flammpunkt (°C)

< -30 °C - liquid

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves

Analysenzertifikate (COA)

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Sigma-Aldrich

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Sigma-Aldrich

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Chlormethan -Lösung 200&#160;&#956;g/mL in methanol, analytical standard

Supelco

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Chlormethan -Lösung

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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