PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Phenanthroline, 1,10- 66-71-7
4.09
5.00
4.03
Formula Synonyms
C12H8N2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
180.22 S 117
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.25 2.7 16
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.034 0.37 2.2
Technical Basis
A review of available sources identified mouse LD50 acute toxicity data for various routes (intravenous, intraperitoneal). 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 toxicity data of the most preferred route, a mouse intraperitoneal LD50, was selected as the TEEL-3 basis. TEEL-1 and TEEL-2 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL3/6
• TEEL-3 = Mouse intraperitoneal LD50 (75 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/1_10-Phenanthroline.
Mouse intraperitoneal LD50: Journal of Pharmacology and Experimental Therapeutics., 196(478), 1976 [PMID:1255491]. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/1_10-Phenanthroline.
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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.