PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Tellurium chloride 10026-07-0
15.01
11.01
15.02
7.01
4.07
3.08
3.05
7.11
7.10
3.09
Formula Synonyms
Cl4Te
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
269.4 ? 224 380 3.26
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.63 7.0 42
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.057 0.64 3.8
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for tellurium chloride. Instead, exposure limits for tellurium (CASRN: 13494-80-9, TLV-TWA, IDLH) were evaluated as TEEL bases. Data sources were selected according to the hierarchy listed in Table 3.1. The IDLH was evaluated as a TEEL-3 basis, however, it would result in a TEEL value greater than tellurium which would not reflect the corrosive properties of this chemical. Instead, the TLV-TWA was selected as the TEEL-1 basis and a compound adjusted factor was applied (Section 3.2.2). TEEL-3 and TEEL-2 values were derived according to Table 3.5.
• TEEL-1 = MW-adjusted TLV-TWA (tellurium, CASRN: 13494-80-9, 0.1 mg/m3) x 3
• TEEL-2 = TEEL-1 x 11
• TEEL-3 = TEEL-2 x 6
This review generated TEEL sources and methodology that are consistent with Rev. 29A. The Rev. 29A and current TEEL-3/TEEL-1 values are consistent, with minor differences in the TEEL-2 values which may be due to rounding.
References
https://pubchem.ncbi.nlm.nih.gov/compound/Tellurium-tetrachloride
Tellurium IDLH. https://www.cdc.gov/niosh/idlh/13494809.html
Tellurium TLV-TWA. https://www.osha.gov/chemicaldata/248
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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.