PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Fluorosulfonic acid; (Fluorosulfuric acid) 7789-21-1
14.01
11.00
14.02
Formula Synonyms
F.H.O3.S
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
100.07 L -89 163 1.726
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
2.0 10 30
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.49 2.4 7.3
Technical Basis
A review of available source identified ERPGs for this chemical. The ERPGs were selected due to their priority among Protective Action Criteria (Section 1).
• PAC-1 = ERPG-1
• PAC-2 = ERPG-2
• PAC-3 = ERPG-3
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Fluorosulfonic-acid
ERPGs: https://cameochemicals.noaa.gov/chemical/765
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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.