PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Tetramethoxysilane; (Methyl silicate) 681-84-5 2606
14.01
4.01
11.01
14.02
7.00
11.00
4.09
4.07
4.13
10.00
Formula Synonyms
C4H12O4Si METHYL ORTHOSILICATE, KBM 04, METHYL SILICATE, METHYL SILICATE ((CH3)4SIO4), METHYL SILICATE ((MEO)4SI), METHYL SILICATE 39, MSP 150, ORTHOSILICATE DE MÉTHYLE (DOT FRENCH), ORTOSILICATO DE METILO (DOT SPANISH), SILANE, TETRAMETHOXY-, SILICON METHOXIDE (SI(OME)4), SILICON TETRAMETHOXIDE, TETRAMETHOXYSILANE, TETRAMETHYL ESTER OF SILICIC ACID, TETRAMETHYL ORTHOSILICATE, TETRAMETHYL SILICATE, TMOS
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
152.22 L -1 121 7.5 14.4 1.0232 @ 20°C
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.083 0.91ₐ 1.4ₐ
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
0.52 5.7 8.7
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.