PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Silicon 7440-21-3 1346
4.01
11.01
11.00
4.02
3.09
16.01
16.02
Formula Synonyms
Si SILICON POWDER, AMORPHOUS, ELEMENTAL SILICON, HEXSIL, HGH 600, KDB 20, METASILICON 325A, POLYSILICON, SICOMILL 4C-P, SICOMILL GRADE 2, SILGRAIN STANDARD, SILICIO EN POLVO, AMORFO (DOT SPANISH), SILICIUM EN POUDRE, AMORPHE (DOT FRENCH), SILICON ELEMENT, SILSO
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
28.09 S 1414 3265 1635 2.3296
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
45 100 630
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
39 87 550
Technical Basis
No technical basis available
References
Search Again
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.