PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Crotonic Acid 3724-65-0 2823
14.01
4.01
11.01
14.02
11.00
4.07
Formula Synonyms
C4.H6.O2 CROTONIC ACID, 3-METHYLACRYLIC ACID, ACIDE CROTONIQUE (DOT FRENCH), ACIDE CROTONIQUE, LIQUIDE (DOT FRENCH), ACIDE CROTONIQUE, SOLIDE (DOT FRENCH), ACIDO CROTÓNICO (DOT SPANISH), ACIDO CROTÓNICO, LÍQUIDO (DOT SPANISH), ACIDO CROTÓNICO, SÓLIDO (DOT SPANISH), ALPHA-BUTENOIC ACID, CROTONIC ACID, LIQUID, CROTONIC ACID, SOLID
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
86.1 S 72 185 0.19 20 1.018 @ 15°C
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
3.0 33 200
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.85 9.4 57
Technical Basis
A review of available sources identified several LD50 toxicity data for various routes and species. 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 LD50 of the most preferred species and route, a rat oral LD50, was selected as the TEEL-3 basis. 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 oral LD50 (1 g/kg => 1000 mg/kg)
This review generated PAC values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Crotonic-acid
Journal of Industrial Hygiene and Toxicology., 26(269), 1944. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Crotonic-acid.
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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.