PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Benzenetetracarboxylic dianhydride, 1,2,4,5- 89-32-7
11.01
14.01
15.02
4.09
4.01
7.01
8.00
4.08
11.00
10.00
Formula Synonyms
C1.0.H2.O6
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
218.12 S 0.0000048 25 1.68
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
6.8 74 450
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.76 8.3 50
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.