PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cobalt(II) perchlorate, hexahydrate | 13478-33-6 |
4.07
4.06
4.08
3.11
7.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| Co.Cl2.O8.6 H2.O | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 365.95 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.37 | 5.8 | 35 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.025 | 0.39 | 2.3 |
Technical Basis
A review of available sources identified the following: a mouse intraperitoneal LD50¬, in addition to exposure limits for cobalt metal (TLV-TWA, IDLH, CASRN: 7440-48-4). 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. Although the cobalt IDLH was evaluated as a TEEL-3 basis, there was available acute toxicity data for cobalt(II) perchlorate hexahydrate that was selected instead. The mouse intraperitoneal LD¬¬50 was selected as the TEEL-3 basis. The TEEL-2 value was derived according to Table 3.5. The cobalt TLV-TWA was selected as the TEEL-1 basis and adjusted using a compound adjustment factor (Section 3.2.2).
• TEEL-1 = MW-adjusted TLV-TWA (cobalt, CASRN: 7440-48-4, 0.02 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = Mouse intraperitoneal LD50 (160 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A
• TEEL-1 = MW-adjusted TLV-TWA (cobalt, CASRN: 7440-48-4, 0.02 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = Mouse intraperitoneal LD50 (160 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A
References
Journal of Agricultural and Food Chemistry., 14(512), 1966. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Cobalt-perchlorate-hexahydrate
Description retrieved from: https://assets.thermofisher.com/DirectWebViewer/private/results.aspx?page=NewSearch&LANGUAGE=d__EN&SUBFORMAT=d__CGV4&SKU=ALFAA44320&PLANT=d__ALF
https://www.cdc.gov/niosh/idlh/7440484.html
https://www.osha.gov/chemicaldata/539