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I8507

Sigma-Aldrich

Iodomethane

contains copper as stabilizer, ReagentPlus®, 99%

Synonym(s):

Methyl iodide

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About This Item

Empirical Formula (Hill Notation):
CH3I
CAS Number:
74-88-4
Molecular Weight:
141.94
Beilstein:
969135
EC Number:
200-819-5
MDL number:
MFCD00001073
UNSPSC Code:
12352100
PubChem Substance ID:
24896140
NACRES:
NA.21
Assay:
99%
bp:
41-43 °C (lit.)
vapor pressure:
24.09 psi ( 55 °C)
7.89 psi ( 20 °C)

vapor density

4.89 (vs air)

Quality Level

200

vapor pressure

24.09 psi ( 55 °C)
7.89 psi ( 20 °C)

product line

ReagentPlus®

Assay

99%

form

liquid

contains

copper as stabilizer

refractive index

n20/D 1.531 (lit.)

pH

6.3 (21.1 °C)

bp

41-43 °C (lit.)

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General description

Iodomethane also known as methyl iodide is a methylating agent. Its potential as an alternative to methyl bromide for soil fumigation has been studied. The mechanism of the gas-phase reaction of iodomethane with chlorine atom has been described. The dynamics of photolysis of iodomethane have been studied using multiphoton ionization. The interaction of iodomethane with Cu(111) surface has been analyzed.

Application

Iodomethane (Methyl iodide) has been used to generate iodide water cluster reagent ions for ToF-CIMS (time-of-flight chemical ionization mass spectrometry) analysis. It may be used to prepare (E)-1-iodopropene and N,N,N-trimethylchitosan (TMC).

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

accessory

Product No.
Description
Pricing

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 2 - Carc. 2 - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

89.8 °F - closed cup

Flash Point(C)

32.1 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL1502
MKCP7973
MKCW8402
STBL1571
SDBB0642

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High-resolution chemical ionization mass spectrometry (ToF-CIMS): application to study SOA composition and processing.
Aljawhary D, et al.
Atmospheric Measurement Techniques, 6(11), 3211-3224 (2013)
Methyl iodide, an ozone-safe alternative to methyl bromide as a soil fumigant.
Ohr HD, et al.
Plant Disease, 80(7), 731-735 (1996)
Iodomethane dissociation on Cu (111): Bonding and chemistry of adsorbed methyl groups.
Lin JL and Bent BE.
Journal of Vacuum Science & Technology. A, Vacuum, Surfaces, And Films, 10(4), 2202-2209 (1992)
Methyl rotation, vibration, and alignment from a multiphoton ionization study of the 266 nm photodissociation of methyl iodide.
Loo RO, et al.
J. Chem. Phys. , 90(8), 4222-4236 (1989)
Methylation of chitosan with iodomethane: effect of reaction conditions on chemoselectivity and degree of substitution.
Curti E, et al.
Macromolecular Bioscience, 3(10), 571-576 (2003)
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