PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Butene, cis-2-; (cis-1,2-Dimethylethylene) 590-18-1
17.00
4.01
11.01
14.02
4.08
4.05
7.01
11.00
4.07
3.10
Formula Synonyms
C4H8 2-BUTENE-CIS
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
56.11 G -138.9 3.7 1600 25 0.616 17000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
750 2200* 13000**
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
1700 5000 30000
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.