PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Copper(II) oxalate | 814-91-5 |
11.01
15.01
15.02
11.00
4.07
|
||||||||||
| Formula | Synonyms | |||||||||||
| C2.H2.O4.Cu | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 153.58 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 12 | 130 | 790 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.9 | 21 | 130 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for copper(II) oxalate. Reported GHS health hazard ratings (H302 + H312, Category 4) indicate a low-to-mid-level health hazard, approximately equivalent to an HHR=2. In addition, a recent SDS reports a Health NFPA=2. As an organic copper compound, analysts didn’t consider organic or elemental coppers sources for TEEL development. Considering this, analysts assumed an HHR=2 as the TEEL-3 basis (Section 3.4.5). TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = HHR=2
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A TEEL-1 basis was a weight adjusted copper TLV-TWA, from which TEEL-2 and TEEL-3 values were derived. The current TEEL-3 basis is an assumed HHR=2, from analysis of GHS health hazard statements and reported NPFA Health ratings, from which TEEL-2 and TEEL-1 were derived (Table 3.5).
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = HHR=2
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A TEEL-1 basis was a weight adjusted copper TLV-TWA, from which TEEL-2 and TEEL-3 values were derived. The current TEEL-3 basis is an assumed HHR=2, from analysis of GHS health hazard statements and reported NPFA Health ratings, from which TEEL-2 and TEEL-1 were derived (Table 3.5).
References
Chemical information and GHS health hazard codes retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Copper_II_-oxalate
NFPA=2 reported in SDS: https://www.fishersci.com/store/msds?partNumber=AAA1536518&productDescription=COPPER+%28II%29+OXALATE%2C+98%25+50G&vendorId=VN00024248&countryCode=US&language=en