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I8507

Sigma-Aldrich

Iodomethane

contains copper as stabilizer, ReagentPlus®, 99%

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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

vapor density

4.89 (vs air)

Quality Level

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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This Item
67692IX0185289566
vibrant-m

I8507

Iodomethane

vibrant-m

67692

Iodomethane

vibrant-m

IX0185

Iodomethane

vibrant-m

289566

Iodomethane

assay

99%

assay

≥99.0% (GC)

assay

≥98% (GC)

assay

99.5%

vapor pressure

24.09 psi ( 55 °C), 7.89 psi ( 20 °C)

vapor pressure

24.09 psi ( 55 °C), 7.89 psi ( 20 °C)

vapor pressure

540 hPa ( 25 °C)

vapor pressure

24.09 psi ( 55 °C), 7.89 psi ( 20 °C)

refractive index

n20/D 1.531 (lit.)

refractive index

n20/D 1.530, n20/D 1.531 (lit.)

refractive index

-

refractive index

n20/D 1.531 (lit.)

vapor density

4.89 (vs air)

vapor density

4.89 (vs air)

vapor density

-

vapor density

4.89 (vs air)

mp

−64 (lit.)

mp

−64 (lit.)

mp

-66 °C

mp

−64 (lit.)

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

signalword

Danger

Hazard Classifications

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

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

89.8 °F - closed cup

flash_point_c

32.1 °C - closed cup

ppe

Faceshields, Gloves, Goggles


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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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