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67692

Sigma-Aldrich

Iodomethane

purum, ≥99.0% (GC)

Synonym(s):

Methyl iodide

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25 G
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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

CN¥839.76

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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.)

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1 of 4

This Item
379891P787577310
Periodic acid ACS reagent, 99%

375810

Periodic acid

Periodic acid 99.999% trace metals basis

379891

Periodic acid

Periodic acid ReagentPlus®, ≥99.0%

P7875

Periodic acid

Periodic acid puriss. p.a., ACS reagent, crystallized, ≥99.0% (RT)

77310

Periodic acid

assay

99%, 99.0-101.0% (ACS specification)

assay

99.999% trace metals basis

assay

≥99.0%

assay

≥99.0% (RT)

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

200

form

powder or crystals

form

crystals

form

powder or crystals

form

powder or crystals

solubility

water: soluble

solubility

water: soluble

solubility

water: 100 mg/mL, clear, colorless

solubility

water: soluble

mp

122 °C (lit.)

mp

122 °C (lit.)

mp

122 °C (lit.)

mp

122 °C (lit.)

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.[1] It reacts with tris(triphenylphosphine)chlororhodium(I) to afford the octahedral complex of rhodium(III), [RhlCl(CH3)(PPh3)2(ICH3)].[2] Kinetics of its reaction with atomic chlorine in the gas phase has been investigated. The absolute rate constant of the reaction has been reported.[3]

Application

Iodomethane (Methyl iodide) may be employed in the preparation of stable neutral solutions of hypoiodous acid[4] and various methyl esters.[5]

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
    STBL1502
    STBL1571
    SDBB0642
    STBL0059
    STBK6017

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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
    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)
    Eagleson M.
    Concise Encyclopedia Chemistry, 649-649 (1994)
    Iodomethane oxidation by dimethyldioxirane: a new route to hypoiodous acid and iodohydrines.
    Asensio G, et al.
    Organic Letters, 1(13), 2125-2128 (1999)
    Interaction of tris (triphenylphosphine) chlororhodium (I) with iodomethane, methylallyl, and allyl chloride.
    Lawson DN, et al.
    J. Chem. Soc. Sect. A, 1733-1736 (1966)
    View All Related Papers

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