I8507

Sigma-Aldrich

Iodomethane

contains copper as stabilizer, ReagentPlus®, 99%

Synonym(s):
Methyl iodide
Empirical Formula (Hill Notation):
CH3I
CAS Number:
Molecular Weight:
141.94
Beilstein/REAXYS Number:
969135
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

4.89 (vs air)

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.)

mp

−64 (lit.)

density

2.28 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CI

InChI

1S/CH3I/c1-2/h1H3

InChI key

INQOMBQAUSQDDS-UHFFFAOYSA-N

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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).

Packaging

5 g in ampule
100, 4×100, 500 g in glass bottle
1 L in glass bottle
10, 25 kg in stainless steel drum
2 kg in glass bottle
100 mL in glass bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

hazcat

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

Target Organs

Respiratory system

storage_class_code

3 - Flammable liquids

WGK Germany

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

Certificate of Analysis

Certificate of Origin

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 iodide, an ozone-safe alternative to methyl bromide as a soil fumigant.
Ohr HD, et al.
Plant Disease, 80(7), 731-735 (1996)
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)
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)
Platinum-catalyzed addition of iodomethane to acetylene.
Mitchenko SA, et al.
Russian Chemical Bulletin, 62(4), 984-988 (2013)

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