PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Potassium pyrosulfite; (Potassium metabisulfite) 16731-55-8
5.10
11.00
4.07
7.01
7.00
11.01
14.01
14.02
9.00
Formula Synonyms
O5.S2.K2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
22.32 S 2.3
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
5.4 59 360
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
5.9 65 390
Technical Basis
No technical basis available
References
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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.