Sigma-Aldrich 8.00655 Tetraethyl orthosilicate for synthesis 250 mL
Marka
Stok Kodu
LB.SA.8006580250
Kısa Bilgi
Synonym(s): Tetraethyl orthosilicate, Tetraethoxysilane Linear Formula: (C2H5O)4Si CAS Number: 78-10-4 Molecular Weight: 208.33 MDL number: MFCD00009062 EC Index Number: 201-083-8
Bilgi
CAS Number: 78-10-4
| Sigma-Aldrich 8.00655 Tetraethyl orthosilicate for synthesis |
| Synonym(s): Tetraethyl orthosilicate, Tetraethoxysilane Linear Formula: (C2H5O)4Si CAS Number: 78-10-4 Molecular Weight: 208.33 MDL number: MFCD00009062 EC Index Number: 201-083-8 |
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PROPERTIES
vapor pressure 2 hPa ( 20 °C)
Quality Level 200 Assay ≥99% (GC) form liquid autoignition temp. 230 °C potency 6270 mg/kg LD50, oral (Rat) 5860 mg/kg LD50, skin (Rabbit) expl. lim. 1.3-23 % (v/v) pH 7 (20 °C) bp 168.0 °C/1013 hPa mp -85.5 °C transition temp flash point 45 °C density 0.94 g/cm3 at 20 °C storage temp. 2-30°C InChI 1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3 InChI key BOTDANWDWHJENH-UHFFFAOYSA-N DESCRIPTION General description Tetraethylorthosilicate (TEOS) is the ethyl ester of ortho silicic acid, which is the most readily available silicon source. It is mainly used as a crosslinking agent in silicon polymer and precursor in the preparation of silicon thin films.[1][2] Features and Benefits TEOScan polymerize in alkaline, acidic, and neutral conditions, making it anadvantageous precursor Analysis Note Assay (GC, area%): ≥ 99.0 % (a/a) Density (d 20 °C/ 4 °C): 0.932 - 0.934 Identity (IR): passes test |