PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Arsenic trioxide 1327-53-3 1561
14.01
11.01
14.02
4.08
4.05
7.01
8.00
7.00
11.00
4.09
Formula Synonyms
As2O3 ARSENIC TRIOXIDE, ARSENIC (III) OXIDE, ARSENIC OXIDE, ARSENIC OXIDE (ASO1.5), ARSENIC SESQUIOXIDE, ARSENIC SESQUIOXIDE (AS2O3), ARSENIC TRIOXIDE, SOLID, ARSENIC(III) OXIDE, ARSENICUM ALBUM, ARSENIOUS ACID, ARSENIOUS OXIDE, ARSENIOUS TRIOXIDE, ARSENITE, ARSENOLITE, ARSENOUS ACID, ARSENOUS ACID ANHYDRIDE, ARSENOUS ANHYDRIDE, ARSENOUS OXIDE, ARSENOUS OXIDE ANHYDRIDE, ARSODENT, CLAUDELITE, CLAUDETITE, CRUDE ARSENIC, DIARSENIC TRIOXIDE, TRIÓXIDO DE ARSÉNICO (DOT SPANISH), TRIOXYDE D^ARSENIC (DOT FRENCH), WHITE ARSENIC
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
197.84 S 274 460 133.7 3.86
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.27 3ₐ 9.1ₐ
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.033 0.37 1.1
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.