PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sodium carbonate | 497-19-8 |
14.01
4.01
11.01
8.00
7.00
11.00
4.07
3.08
10.00
5.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| CNa2O3 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 105.99 | S hygr | 851 | 2.509 @ 0°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 7.6 | 83 | 500 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.8 | 19 | 120 |
Technical Basis
A review of available data sources identified the following: rat 120-min LC50 and human (male) oral LDLo toxicity data. 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 rat inhalation and human oral toxicity exposures were compared; the human LDLo exposure was selected as the TEEL-3 basis, in accordance with Section 3.3.2. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Human (male) oral LDLo (714 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Human (male) oral LDLo (714 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A.
References
Rat 120-min LC50: Environmental Research., 31(138), 1983 [PMID:6851978]. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-Carbonate
Human (male) oral LDLo: Gekkan Yakuji. Pharmaceuticals Monthly., 32(570), 1990. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-Carbonate