PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Imidazole 288-32-4
5.00
7.01
14.01
14.02
Formula Synonyms
C3.H4.N2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
68.09 S 257 1.0303 @ 101°C
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.66 7.3 44
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.24 2.6 16
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.