PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Silver nitrate | 7761-88-8 | 1493 |
13.00
14.01
4.01
11.01
14.02
4.05
7.01
8.00
7.00
11.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| AgNO3 | SILVER NITRATE, LUNAR CAUSTIC, NITRATE D^ARGENT (DOT FRENCH), NITRATO DE PLATA (DOT SPANISH), NITRIC ACID SILVER(I) SALT, NITRIC ACID, SILVER(1+) SALT, SILBERNITRAT, SILVER (I) NITRATE, SILVER (I) NITRATE (1:1), SILVER MONONITRATE, SILVER NITRATE (AGNO3), SILVER(1+) NITRATE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 169.87 | S | 210 | 4.35 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.047 | 39 | 230 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.0068 | 5.6 | 33 |
Technical Basis
A review of available sources identified the following: a TLV-TWA for soluble silver (CASRN: 7440-22-4) and acute toxicity data (LDLo, LD50) for several species. Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were based on the 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 most preferred species and route, a rat oral LD50, was selected as the TEEL-3 basis. The TEEL-2 was derived according to Table 3.5. The TLV-TWA for soluble silver was selected as the TEEL-1 basis, with a compound adjustment factor applied (Section 3.2.2).
• TEEL-1 = MW-adjusted TLV-TWA (soluble silver, CASRN: 7440-22-4, 0.01 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (1,173 mg/kg)
This review generated TEEL-3 and TEEL-2 values inconsistent with Rev. 29A and a TEEL-1 value consistent with Rev. 29A. The Rev. 29A and current TEEL-1 were derived from the same basis and methodology. The Rev. 29A TEEL-2 and TEEL-3 values were derived from the TEEL-1. In the current review sufficient data, a rat oral LD50, was available as a TEEL-3 basis for silver nitrate; the TEEL-2 was derived from this TEEL-3.
• TEEL-1 = MW-adjusted TLV-TWA (soluble silver, CASRN: 7440-22-4, 0.01 mg/m3) x 3
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (1,173 mg/kg)
This review generated TEEL-3 and TEEL-2 values inconsistent with Rev. 29A and a TEEL-1 value consistent with Rev. 29A. The Rev. 29A and current TEEL-1 were derived from the same basis and methodology. The Rev. 29A TEEL-2 and TEEL-3 values were derived from the TEEL-1. In the current review sufficient data, a rat oral LD50, was available as a TEEL-3 basis for silver nitrate; the TEEL-2 was derived from this TEEL-3.
References
Rat oral LD50: Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases., 27(12)(33), 1983. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/24470
Soluble silver TLV-TWA: https://www.osha.gov/chemicaldata/519
https://www.ilo.org/dyn/icsc/showcard.display?p_version=2&p_card_id=1116