PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Hexadecene, 1- 629-73-2
15.01
7.01
15.02
11.00
4.11
Formula Synonyms
C16-H32
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
224.48 L 4.1 284.4 0.7811 @ 20°C
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.46 5.1 31
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
4.2 47 280
Technical Basis
A review of available sources identified acute toxicity data (LD50, LC50) of various species and routes for 1-hexadecene (Note: 1-hexadecene (C16) is a linear alpha-olefin and is classified as a member of the Higher Olefins Category. Toxicity data identified is reported for “C16-olefin”). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. Inhalation exposures were scaled down to 60-minute equivalents using the ten Berge equation (Section 3.3.4). Two available rat LC50 toxicity data (693 ppm/4H and 926 ppm/1H) were evaluated for the TEEL-3 basis, and the most conservative dose (693 ppm/4H) was selected. TEEL-1 and TEEL-2 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat LC50 (C16-olefins, 6.4 mg/L/4H; 693 ppm/4H)
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/1-Hexadecene.
Rat LC50 (693 ppm/4H and 926 ppm/1H): See Annex Table 2 (pg. 54) https://hpvchemicals.oecd.org/ui/handler.axd?id=0626a778-6e03-48c6-912a-03be1025ade4
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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.