PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Isophorone 78-59-1 8027
14.01
4.01
11.01
4.08
4.05
7.01
8.00
11.00
4.02
4.09
Formula Synonyms
C9H14O ISOPHORONE, 1,1,3-TRIMETHYL-3-CYCLOHEXENE-5-ONE, 1,5,5-TRIMETHYL-3-OXOCYCLOHEXENE, 3,5,5-TRIMETHYL-2-, 3,5,5-TRIMETHYL-2-CYCLO-HEXEN-1-ONE, 3,5,5-TRIMETHYL-2-CYCLOHEXENE-1-ONE, 3,5,5-TRIMETHYL-2-CYCLOHEXENONE, 3,5,5-TRIMETHYL-5-CYCLOHEXEN-1-ONE, ALPHA-ISOPHORON, ALPHA-ISOPHORONE, CYCLOHEXANE-1-ONE, ISOACETOPHORONE, ISOFORON, ISOPHORON, NCI-C55618
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
138.21 L -8.1 215.2 0.75 33.1 0.9255 @ 20°C 8000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
12 33 200
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
68 190 1100
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.