PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Trimethylolpropane phosphite 824-11-3
7.01
8.00
11.00
Formula Synonyms
C6-H11-O3-P TRIMETHYLOLPROPANE PHOSPHITE, 1,1,1-TRIS-HYDROXYMETHYLPROPANE BICYCLIC PHOSPHITE, 1,3-PROPANEDIOL, 2-ETHYL-2-(HYDROXYMETHYL)-, CYCLIC PHOSPHIT, 1,3-PROPANEDIOL, 2-ETHYL-2-(HYDROXYMETHYL)-, CYCLIC PHOSPHIT, 1,3-PROPANEDIOL, 2-ETHYL-2-(HYDROXYMETHYL)-, CYCLIC PHOSPHIT, 2-(HYDROXYMETHYL)-2-ETHYL-1,3-PROPANEDIOL, CYCLIC PHOSPHITE(, 4-ETHYL- 1-PHOSPHA-2,6,7-TRIOXABICYCLO[2.2.2]OCTANE, 4-ETHYL-2,6,7-TRIOXA-1- PHOSPHABICYCLO[2.2.2]OCTANE, ETHRIOL PHOSPHITE, ETPB, TRIMETHYLOLPROPANE CYCLIC PHOSPHITE (1:1)
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
162.14 S 56 200 0.2 25
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.035 0.38 0.42
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
0.23 2.5 2.8
Technical Basis
A review of available sources identified a LOC and acute toxicity data (LD50, LCLo) for several 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. Inhalation exposures were scaled to 60-minute equivalents using the ten Berge equation (Section 3.3.4). The most preferred route and species toxicity data, a rat LCLo, was selected as the TEEL-3 basis. The LOC was selected as the TEEL-2. The TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = LOC (0.0025 g/m3)
• TEEL-3 = Rat LCLo (10 ppm/4H)
This review generated TEEL values that are consistent with Rev. 29A*. Rev. 29A TEEL values were reported only in units of mg/m3.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/13210
Rat LCLo. British Journal of Industrial Medicine., 27(1), 1970 [PMID:5418916]. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/13210
LOC. Appendix C, pg. C-9. https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf
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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.