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METHYLISOCYANATE  1 X 500MG NEAT Structure

METHYLISOCYANATE 1 X 500MG NEAT

Chemical Properties

Melting point -45℃
Boiling point 59.6℃
Density  0.9230
vapor pressure  348 at 20 °C (NIOSH, 1997)
refractive index  1.3419
Flash point -7 °C
form  Liquid; aerosol
Water Solubility  10 wt % at 15 °C (NIOSH, 1997)
Merck  13,6112
Exposure limits TLV-TWA skin 0.047 mg/m3 (0.02 ppm) (ACGIH and OSHA); IDLH 47.4 mg/m3 (20 ppm) (NIOSH).
Dielectric constant 29.4(21℃)
Stability Stable, but highly reactive. Highly flammable. Readily forms explosive mixtures with air. Note low boiling point, low flash point.
NIST Chemistry Reference Methane, isocyanato-(624-83-9)
EPA Substance Registry System Methyl isocyanate (624-83-9)

Safety Information

Hazard Codes  F+,T+
Risk Statements  12-24/25-26-37/38-41-42/43-63
Safety Statements  26-27/28-36/37/39-45-63-28-27
RIDADR  2480
OEB D
OEL TWA: 0.02 ppm (0.05 mg/m3) [skin]
RTECS  NQ9450000
HazardClass  6.1(a)
PackingGroup  I
Hazardous Substances Data 624-83-9(Hazardous Substances Data)
Toxicity LD50 in male rats (mg/kg): 140 single oral dose (Vernot); LC50 in rats (4 hours exposure to vapor): 5 ppm (Kimmerle, Eben)
IDLA 0.12 ppm (0.28 mg/m3)

Usage And Synthesis