PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Cadmium nitrite 7790-83-2
1.00
Formula Synonyms
Cd.(N.O2)2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
204.41 S
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.10 0.76 4.7
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.012 0.091 0.56
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for cadmium nitrite. Instead, AEGLs for a similar chemical, cadmium (CASRN: 7440-43-9) were evaluated for TEEL development. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = AEGL-1 (cadmium, CASRN: 7440-43-9)
• TEEL-2 = AEGL-2 (cadmium, CASRN: 7440-43-9)
• TEEL-3 = AEGL-3 (cadmium, CASRN: 7440-43-9)
This review generated TEEL values inconsistent with Rev. 29A. The Rev. 29A and current sources are the same, cadmium AEGLs; however, the Rev. 29A values were molecular weight adjusted. The current values are not adjusted, in accordance with Section 3.2.2.
References
Chemical information (molecular weight): https://pubchem.ncbi.nlm.nih.gov/compound/Cadmium-dinitrite
Chemical information (molecular formula for cadmium nitrite; nitrous acid, cadmium salt): https://commonchemistry.cas.org/detail?cas_rn=7790-83-2&search=7790-83-2
Chemical description (cadmium, CASRN: 7440-43-9): https://pubchem.ncbi.nlm.nih.gov/compound/Cadmium.
Cadmium (CASRN: 7440-43-9) AEGLs: https://www.epa.gov/aegl/cadmium-results-aegl-program
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.