PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Methyl isocyanate 624-83-9 2480
13.00
14.01
4.01
11.01
14.02
4.08
4.05
7.01
8.00
7.00
Formula Synonyms
C2H3NO METHYL ISOCYANATE, ISO-CYANATOMETHANE, ISOCIANATO DE METILO (DOT SPANISH), ISOCYANATE DE MÉTHYLE (DOT FRENCH), ISOCYANATOMETHANE, ISOCYANIC ACID, METHYL ESTER, METHANE, ISOCYANATO-, METHYL CARBONIMIDE, METHYL ESTER ISOCYANIC ACID, METHYL ESTER OF ISOCYANIC ACID, MIC, RCRA WASTE NUMBER P064, TL 1450
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
57.05 L -45 38.3 750 38.8 0.9588 @ 20°C 53000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.025ₑ 0.067ₐ 0.2ₐ
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
0.058 0.16 0.47
Technical Basis
No technical basis available
References
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.