PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Tripropylene glycol; (((1-Methyl-1,2-ethanediyl)bis(oxy))bispropanol) 24800-44-0
19.00
Formula Synonyms
C9.H20.O4 TRIPROPYLENE GLYCOL
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
192.29 L 267 1 96 1.023 8000
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
9.0 99 590
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
1.1 13 75
Technical Basis
A review of limited sources identified rat oral LD50 toxicity data that was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. TEEL-2 and TEEL-1 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 oral LD50 (3 g/kg)
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Tripropylene-Glycol.
Molecular weight: https://cameochemicals.noaa.gov/chemical/9155
Rat oral LD50. Industrial Hygiene and Toxicology, 2nd ed., Patty, F.A., ed., New York, John Wiley & Sons, Inc., 1958-63, 2(1522), 1963. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Tripropylene-Glycol
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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.