NAME: Methyl Iodide

SYNONYM(s): Iodomethane

IMIS: 1772

CAS: 74-88-4

NIOSH: RTECS PA9450000; 47908

DOT: UN2644 Poison

DESCRIPTION:

Colorless liquid which turns yellow, red, or brown on exposure to light and moisture.
MW: 142
BP: 108 F
VP: 375 mm
MP: -87 F

INCOM: Strong oxidizers

OSHA GENERAL INDUSTRY PEL: 5 ppm, 28 mg/m3 (Skin)

OSHA CONSTRUCTION INDUSTRY PEL: 5 ppm, 28 mg/m3 TWA (Skin)

ACGIH TLV: 2 ppm, 12 mg/m3 TWA (Skin)

NIOSH REL: 2 ppm TWA (Skin), Potential Carcinogen

IARC: Group 3, not classifiable as to its carcinogenicity to humans

SYMPTOM(s): Nausea, vomiting; vertigo; ataxia; slurred speech; drowsiness; dermatitis; eye irritation; (carcinogenic)

HEALTH EFFECTS: Acute and cumulative CNS effects (HE4) and (HE3) Mutagen (HE2)

ORGAN: CNS, skin, eyes

PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):

MEDIA: Charcoal Tube (100/50 mg sections, 20/40 mesh)
ANL SOLVENT: Toluene
MAX V: 50 Liters   MAX F: 1.0 L/min
ANL 1: Gas Chromatography; GC/FID
REF: 1 (NIOSH 1014)
SAE: 0.12
CLASS: Fully Validated

SECONDARY SAMPLING/ANALYTICAL METHOD (SAM2):

DEVICE: Instrumentation COMPANY: Infrared Spectrophotometer
PART #: MIRAN 1A & 1B RANGE: 1.8 ppm @ 3.4 um
CLASS: Mfg
DEVICE: Detector Tube COMPANY: Kitagawa
PART #: 176S RANGE: 5-40 ppm
CLASS: Mfg

WIPE:

Wipe with charcoal pad, seal in glass vial for shipment.