PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Antimony trichloride; (Antimony(III) chloride) | 10025-91-9 | 1733 |
6.00
14.01
11.01
14.02
4.08
4.05
7.00
4.06
4.07
10.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| Cl3Sb | ANTIMONY TRICHLORIDE, LIQUID, ANTIMONOUS CHLORIDE, ANTIMONY BUTTER, ANTIMONY CHLORIDE (SB2CL6), ANTIMONY CHLORIDE (SBCL3), ANTIMONY TRICHLORIDE, SOLID, ANTIMONY TRICHLORIDE, SOLUTION, ANTIMONY(III) CHLORIDE, ANTIMONY(III) TRICHLORIDE, BUTTER OF ANTIMONY, C.I. 77056, TRICHLOROANTIMONY, TRICHLOROSTIBINE, TRICHLORURE D^ANTIMOINE, EN SOLUTION (DOT FRENCH), TRICHLORURE D'ANTIMOINE, LIQUIDE (DOT FRENCH), TRICHLORURE D'ANTIMOINE, SOLIDE (DOT FRENCH), TRICLORURO DE ANTIMONIO, EN SOLUCIÓN (DOT SPANISH), TRICLORURO DE ANTIMONIO, LÍQUIDO (DOT SPANISH), TRICLORURO DE ANTIMONIO, SÓLIDO (DOT SPANISH) | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 228.119 | S | 73.4 | 220.3 | 1 | 49.2 | 3.14 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.8 | 17 | 100 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.30 | 1.8 | 11 |
Technical Basis
A review of available sources identified acute toxicity data (TCLo, LD50) for several species and routes. In addition, exposure limits for antimony (Sb, CASRN: 7440-36-0, IDLH, TWAs) were evaluated for TEEL development. 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 most preferred species and route toxicity data, a rat oral LD50, was selected as the TEEL-3 basis. The resulting TEEL-3 is more conservative than a weight adjusted IDLH, which analysts consider appropriate due to the corrosive properties of this compound. The TEEL-2 was derived according to Table 3.5. The antimony TLV-TWA was selected as the TEEL-1 basis and a compound adjustment factor was applied (Section 3.2.2).
• TEEL-1 = MW -adjusted TLV-TWA (antimony, CASRN: 7440-36-0, 0.5 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (525 mg/kg)
This review generated TEEL-3 and TEEL-2 values inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis was MW-adjusted antimony IDLH (1990); instead, the current TEEL-3 was derived from rat inhalation data for antimony pentachloride. The Rev. 29A and current TEEL-2 use the same methodology, with differences due to the change in TEEL-3. The Rev. 29A and current TEEL-1 values, source, and methodology are consistent.
• TEEL-1 = MW -adjusted TLV-TWA (antimony, CASRN: 7440-36-0, 0.5 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (525 mg/kg)
This review generated TEEL-3 and TEEL-2 values inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis was MW-adjusted antimony IDLH (1990); instead, the current TEEL-3 was derived from rat inhalation data for antimony pentachloride. The Rev. 29A and current TEEL-2 use the same methodology, with differences due to the change in TEEL-3. The Rev. 29A and current TEEL-1 values, source, and methodology are consistent.
References
Rat oral LD50. Personal Communication from J.V. Marhold, VUOS, 539-18, Pardubice, Czechoslavakia, Mar. 29, 1977, 29MAR1977. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Antimony-trichloride
Antimony exposure limits: https://www.osha.gov/chemicaldata/526
Antimony IDLH and TLV-TWA: https://www.cdc.gov/niosh/idlh/7440360.html
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Antimony-trichloride.