PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Butanone, 2-; (Methyl ethyl ketone; MEK) 78-93-3 1193
15.01
11.01
15.02
4.08
4.05
7.01
8.00
7.00
11.00
4.02
Formula Synonyms
C4H8O ETHYL METHYL KETONE, 2-BUTANONE, 3-BUTANONE, BUTANONE, ÉTHYLMÉTHYLCÉTONE (DOT FRENCH), ETILMETILCETONA (DOT SPANISH), KETONE, ETHYL METHYL, MEETCO, MEK, METHYL ACETONE, METHYL ETHYL KETONE, METHYL ETHYL KETONE (MEK), MÉTHYLÉTHYLCÉTONE (DOT FRENCH), METIL ETIL CETONA (DOT SPANISH), RCRA WASTE NUMBER U159, UN 1193, UN 1232
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
72.11 L -86.64 79.59 75 21.2 0.7999 18000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
200ₐ 2700ₐ* 4000ₐ*
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
590 8000 12000
Technical Basis
No technical basis available
References
Search Again
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.