PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cadmium stearate; (Octadecanoic acid, cadmium salt) | 2223-93-0 |
15.01
11.01
4.08
7.01
11.00
4.09
4.10
4.07
3.08
1.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| Cd.C36.H72.O4 | CADMIUM STEARATE, ALAIXOL 11, CADMIUM DISTEARATE, CADMIUM OCTADECANOATE, CADMIUM(II) STEARATE, OCTADECANOIC ACID, CADMIUM SALT, SCD, STABILISATOR SCD, STABILIZER SCD, STEARIC ACID, CADMIUM SALT | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 681.48 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.30 | 1.3 | 4.5 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.011 | 0.047 | 0.16 |
Technical Basis
A review of available sources identified exposure limits (OEL-TWA, LOC) and acute toxicity data (LC50, LD50, TCLo) for several species and routes. AEGLs for cadmium (CASRN: 7440-43-9) were considered to determine expected magnitude of TEELs for cadmium stearate. 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. Analysts selected the most preferred route and species toxicity data for cadmium stearate, a rat LC50, as the TEEL-3 basis and it was scaled to a 60-minute equivalent using the ten Berge equation (Section 3.3.4). The LOC was selected as the TEEL-2. The OEL-TWA (Latvia) was selected as the TEEL-1 basis.
• TEEL-1 = OEL-TWA (Latvia, 0.1 mg/m3) x 3
• TEEL-2 = LOC (0.0013 g/m3)
• TEEL-3 = Rat LC50 (130 mg/m3/2H)
This review generated TEEL values inconsistent with Rev. 29A. The Rev. 29A TEELs were molecular weight adjusted cadmium AEGLs; per Section 3.2.2, AEGLs may not be weight adjusted. Instead, analysts selected available acute toxicity data (rat LC50) and exposure limits (LOC, OEL-TWA) to develop cadmium stearate TEELs.
• TEEL-1 = OEL-TWA (Latvia, 0.1 mg/m3) x 3
• TEEL-2 = LOC (0.0013 g/m3)
• TEEL-3 = Rat LC50 (130 mg/m3/2H)
This review generated TEEL values inconsistent with Rev. 29A. The Rev. 29A TEELs were molecular weight adjusted cadmium AEGLs; per Section 3.2.2, AEGLs may not be weight adjusted. Instead, analysts selected available acute toxicity data (rat LC50) and exposure limits (LOC, OEL-TWA) to develop cadmium stearate TEELs.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Cadmium-stearate
Rat LC50. Zeitschrift fuer die Gesamte Hygiene und Ihre Grenzgebiete., 17(308), 1971 [PMID:5123074]. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Cadmium-stearate
OEL-TWA (Latvia): https://ilv.ifa.dguv.de/limitvalues/9364
LOC. Appendix C, pg. C-3. https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf
Cadmium AEGLs: https://www.epa.gov/aegl/cadmium-results-aegl-program