Basic information Ethyl silicate Chemical Properties Uses Production method Category Toxicity grading Acute toxicity Stimulus data Storage Characteristics Extinguishing agent Occupational standards Safety Related Supplier
Tetraethyl orthosilicate Structure

Tetraethyl orthosilicate

Chemical Properties

Melting point -77 °C
Boiling point 168 °C(lit.)
Density  0.933 g/mL at 20 °C(lit.)
vapor density  7.2 (vs air)
vapor pressure  <1 mm Hg ( 20 °C)
refractive index  n20/D 1.382(lit.)
Flash point 116 °F
storage temp.  Store below +30°C.
solubility  Soluble in ethanol and 2-propanol.
form  Liquid
Specific Gravity 0.934
color  Colorless
explosive limit 1.3-23%(V)
Water Solubility  Hydrolysis
FreezingPoint  -77℃
Sensitive  Moisture Sensitive
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
Merck  14,3851
BRN  1422225
Exposure limits ACGIH: TWA 10 ppm
OSHA: TWA 100 ppm(850 mg/m3)
NIOSH: IDLH 700 ppm; TWA 10 ppm(85 mg/m3)
Dielectric constant 4.1(20℃)
Stability Stable. Flammable. Incompatible with strong oxidizing agents, water, alkalies, mineral acids.
InChIKey BOTDANWDWHJENH-UHFFFAOYSA-N
CAS DataBase Reference 78-10-4(CAS DataBase Reference)
NIST Chemistry Reference Silicic acid (H4sio4), tetraethyl ester(78-10-4)
EPA Substance Registry System Tetraethyl silicate (78-10-4)

Safety Information

Hazard Codes  Xn
Risk Statements  10-20-36/37-36/37/38
Safety Statements  16-36/37/39-26-24/25
RIDADR  UN 1292 3/PG 3
WGK Germany  1
RTECS  VV9450000
Autoignition Temperature 230 °C
TSCA  Yes
HS Code  2920 90 70
HazardClass  3
PackingGroup  III
Hazardous Substances Data 78-10-4(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 6270 mg/kg LD50 dermal Rabbit 5860 mg/kg
IDLA 700 ppm

MSDS

Usage And Synthesis

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