PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Isooctane; (2,2,4-Trimethylpentane) 540-84-1 1262
8.00
15.02
11.00
7.00
7.01
4.05
4.09
4.07
3.09
3.11
Formula Synonyms
C18H18 ISOOCTANE, 2,2,4-TRIMETHYLPENTANE, 2,4,4-TRIMETHYLPENTANE, ISO-OCTANE, ISOBUTYLTRIMETHYLMETHANE, ISOOCTANE (DOT FRENCH), ISOOCTANO (DOT SPANISH)
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
114.26 L -107.5 99.2 40.6 21 0.692 @ 20°C 11000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
230 830 5000*
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
1100 3900 23000
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.