PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sodium nitrate | 7631-99-4 | 1498 |
13.00
15.01
11.01
4.05
7.01
4.07
10.00
3.10
3.07
5.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| NNaO3 | SODIUM NITRATE, CHILE SALTPETER, NITER, NITRATE DE SODIUM (DOT FRENCH), NITRATINE, NITRATO DE SODIO (DOT SPANISH), NITRIC ACID SODIUM SALT (1:1), NITRIC ACID, SODIUM SALT, SALTPETER (CHILE), SODA NITER | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 85 | S | 306.5 | 2.261 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 3.8 | 42 | 250 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.1 | 12 | 72 |
Technical Basis
A review of available sources identified the following: rat and mouse LD50 acute toxicity (oral, intravenous). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected based on type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2. These were evaluated using factors in Tables 3.2, 3.3, and 3.4. Due to species and route preferability, the rat oral LD50 was selected as the TEEL-3 basis. The TEEL-2 was derived according to Table 3.5. A TEEL-1 was also calculated according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (1267 mg/kg)
This review generated TEEL values that are inconsistent with Rev. 29A. While Rev. 29A used mouse oral LD50 toxicity data as the TEEL-3 basis, the current review found and used rat oral LD50 data, which is a more preferred species (Section 3.3.2).
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (1267 mg/kg)
This review generated TEEL values that are inconsistent with Rev. 29A. While Rev. 29A used mouse oral LD50 toxicity data as the TEEL-3 basis, the current review found and used rat oral LD50 data, which is a more preferred species (Section 3.3.2).
References
Rat oral LD50 (1267 mg/kg): Gigiena i Sanitariya. For English translation, see HYSAAV., 46(12)(66), 1981. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-Nitrate.