PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Methyl-3-penten-2-one, 4-; (Mesityl oxide) 141-79-7 1229
14.01
11.01
11.00
8.00
4.08
4.05
4.01
15.02
7.01
7.00
Formula Synonyms
C6H10O MESITYL OXIDE, 2,2-DIMETHYLVINYL METHYL KETONE, 2-METHYL-4-OXO-2-PENTENE, 4-METHYL-3-PENTEN-2-ONE, 4-METHYL-3-PENTENE-2-ONE, ISOBUTENYL METHYL KETONE, ISOPROPYLIDENEACETONE, METHYL 2,2-DIMETHYLVINYL KETONE, METHYL 2-METHYL-1-PROPENYL KETONE, METHYL ISOBUTENYL KETONE, OXIDO DE MESITILO (DOT SPANISH), OXYDE DE MÉSITYLE (DOT FRENCH)
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
98.16 L -59 130 8.21 25 0.87 @ 20°C 14000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
25 830 5000*
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
100 3300 20000
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.