PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Selenious acid 7783-00-8 2811
14.01
4.01
11.01
14.02
4.05
11.00
4.07
7.11
10.00
3.02
Formula Synonyms
H2O3Se SELENIOUS ACID, MONOHYDRATED SELENIUM DIOXIDE, MONOHYDRATED SELENUIM DIOXIDE, SELENIOUS ACID (H2SEO3), SELENOUS ACID
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
128.97 S 2 15 3
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
23 250 1500
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
4.4 47 280
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.