PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Beryllium oxide 1304-56-9
15.01
4.01
11.01
15.02
4.08
11.00
2.00
10.00
3.09
3.02
Formula Synonyms
BeO BERYLLIA, BERYLLIUM & BERYLLIUM COMPOUNDS (AS BE), BERYLLIUM OXIDE, BROMELITE
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
25.01 S crystals 2578 3.01
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.0063 0.069 0.28
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.0062 0.067 0.27
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.