PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calcium nitrite | 13780-06-8 |
13.00
4.07
3.08
3.06
|
||||||||||
| Formula | Synonyms | |||||||||||
| CaN2O4 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 132.09 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.85 | 9.3 | 56 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.16 | 1.7 | 10 |
Technical Basis
A review of available sources identified rat oral LD50 toxicity data that was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. Although there were multiple rat LC50 toxicity data also found on European Chemicals Agency (ECHA), they were not evaluated since they did not result in mortality. TEEL-1 and TEEL-2 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 = Rat oral LD50 (283 mg/kg)
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A values were based on the TEELs for sodium nitrite (CASRN: 7632-00-0); a rat LC50 as the TEEL-3 basis, dog oral TDLo as the TEEL-2 basis, and a TEEL-1 derived from the TEEL-2 (Table 3.5). Instead, the current review used a chemical-specific rat oral LD50 as the TEEL-3 basis, from which the 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 = Rat oral LD50 (283 mg/kg)
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A values were based on the TEELs for sodium nitrite (CASRN: 7632-00-0); a rat LC50 as the TEEL-3 basis, dog oral TDLo as the TEEL-2 basis, and a TEEL-1 derived from the TEEL-2 (Table 3.5). Instead, the current review used a chemical-specific rat oral LD50 as the TEEL-3 basis, from which the TEEL-2 and TEEL-1 were derived (Table 3.5).
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Calcium-nitrite.
Rat oral LD50: https://echa.europa.eu/de/registration-dossier/-/registered-dossier/26779/7/3/2/