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Merck
CN

67692

Sigma-Aldrich

Iodomethane

≥99.0% (GC), purum

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:
329760660
NACRES:
NA.21

Key Documents

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Product Name

Iodomethane, purum, ≥99.0% (GC)

vapor density

4.89 (vs air)

Quality Level

200

vapor pressure

24.09 psi ( 55 °C)
7.89 psi ( 20 °C)

grade

purum

Assay

≥99.0% (GC)

contains

silver wool as stabilizer

impurities

≤0.5% CH2I2

refractive index

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

bp

41-43 °C (lit.)
41-43 °C

mp

−64 (lit.)

solubility

water: soluble 14 g/L at 20 °C

density

2.28 g/mL at 25 °C (lit.)

functional group

alkyl halide
iodo

SMILES string

CI

InChI

1S/CH3I/c1-2/h1H3

InChI key

INQOMBQAUSQDDS-UHFFFAOYSA-N

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General description

Iodomethane (Methyl iodide) is a colorless liquid. It can be prepared by reacting dimethyl sulfate with concentrated KI. Reaction of iodine and phosphorous with methanol has been reported to afford iodomethane. It reacts with tris(triphenylphosphine)chlororhodium(I) to afford the octahedral complex of rhodium(III), [RhlCl(CH3)(PPh3)2(ICH3)]. Kinetics of its reaction with atomic chlorine in the gas phase has been investigated. The absolute rate constant of the reaction has been reported.

Application

Iodomethane (Methyl iodide) may be employed in the preparation of stable neutral solutions of hypoiodous acid and various methyl esters.

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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB0642
SDBB4334
SDBB1371
STBL1502
STBL1571

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Farabi Temel
Talanta, 211, 120725-120725 (2020-02-20)
This work designs the synthesis of a novel amino morpholine schiff base functionalized calix[4]arene cage (SCC), its deposition onto Quartz Crystal Microbalance (QCM) crystal surface, and usage for the selective detecting of formaldehyde (HCHO). The SCC modified QCM sensor has
Interaction of tris (triphenylphosphine) chlororhodium (I) with iodomethane, methylallyl, and allyl chloride.
Lawson DN, et al.
J. Chem. Soc. Sect. A, 1733-1736 (1966)
Efficient methylation of carboxylic acids with potassium hydroxide/methyl sulfoxide and iodomethane.
Avila-Zarraga JG and Martinez R.
Synthetic Communications, 31(14), 2177-2183 (2001)
Absolute reaction rate of chlorine atoms with iodomethane.
Kambanis KG, et al.
Chemical Physics Letters, 268(5), 498-504 (1997)
Kateryna Fatyeyeva et al.
Membranes, 10(5) (2020-05-02)
Four water insoluble room-temperature protic ionic liquids (PILs) based on the N-alkylimidazolium cation with the alkyl chain length from 1 to 4 and bis(trifluoromethylsulfonyl)imide anion were synthesized and their chemical structure was confirmed by the 1H NMR and 19F NMR
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