Formula: CH₃I
CAS: 74-88-4
EC No.: 200-819-5
M (Molar Mass): 141.94 g/mol
D (Density): 2.28 g/cm³
mp (Melting Point): -66 °C
bp (Boiling Point): 42-43 °C
Refractive Index (n²⁰/D): 1.538
Chemicals Properties
Assay (GC): ≥ 99.0 %
Appearance: Clear, colorless to pale yellow liquid. Turns brown on exposure to light.
Identification (IR): Passes test.
Refractive Index (n²⁰/D): 1.537 - 1.539
Water (Karl Fischer): ≤ 0.05 %
Free Iodine: ≤ 0.005 % (colorless or nearly colorless)
Hazard Information
Hazard: Fatal if inhaled. Suspected of causing cancer. Causes severe skin burns and eye damage. Very toxic to aquatic life.
Safety: POISON. CARCINOGEN. Handle in a fume hood. Wear appropriate protective clothing, gloves, and eye/face protection. Use respiratory protection.
Storage: Store in a cool, dark, well-ventilated place, in a tightly closed, light-resistant container, under an inert atmosphere. Refrigerate. Keep away from bases and strong oxidizers.
