PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Hexanone, 3-; (Ethyl propyl ketone) 589-38-8
11.01
7.00
16.01
16.02
Formula Synonyms
C6-H12-O
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
100.18 L 124 0.813 @ 21.8°C 10000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
2.6 29 170
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
11 120 700
Technical Basis
A review of available sources identified acute animal toxicity studies (LD50, LCLo, LDLo) for various species and routes. 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. The most preferred exposure data, a 4-hour rat LCLo, was selected and the TEEL-3 basis and scaled to a 60-minute equivalent using the ten Berge equation (Section 3.3.4). TEEL-1 and -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 LCLo (4000 ppm/4H)
This review generated PAC values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/3-Hexanone.
Rat LCLo: Toxicology and Applied Pharmacology., 28(313), 1974 [PMID:4854023]. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/3-Hexanone.
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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.