PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Ferrous carbonate 563-71-3
19.00
Formula Synonyms
FeCO3
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
115.86 S 3.9
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
6.2 69 410
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
1.3 15 87
Technical Basis
A review of limited sources identified a mouse oral acute toxicity data that was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. TEEL-2 and TEEL-1 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 = Mouse oral LD50 (3800 mg/kg)
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Ferrous-Carbonate
Mouse oral LD50: Joint FAO/WHO Expert Committee on Food Additives; WHO Food Additives Ser 18: Iron (1983). Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/11248#section=Non-Human-Toxicity-Values
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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.