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Tetraethyl Orthosilicate

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Product description

Parameters

Chinese Name	Ethyl orthosilicate	Melting Point	-77℃
English Name	Tetraethyl orthosilicate	Boiling Point	165-169℃
Chemical Formula	C₈H₂₀O₄Si	Density	0.93
Relative Molecular Mass	208.33	Exterior	Colorless transparent liquid
CAS Registry Number	74-10-4	Flash Point	43℃

Structural Formula

Characteristic

Slightly odorous, slightly soluble in water, soluble in ethanol and ether. It becomes cloudy gradually in humid air, and precipitates silicic acid after standing still. It is stable when there is no moisture and does not decompose during distillation. It is miscible with ethanol and ether, slightly soluble in benzene, almost insoluble in water, but can be gradually decomposed into silicon oxide by water. Flammable, narcotic and irritating at high concentrations.

Use

Mainly used in the manufacture of chemical resistant coatings, aerogels and heat-resistant coatings, organic silicon solvents and precision casting adhesives. The metal surface treated with ethyl orthosilicate vapor can be anticorrosive and waterproof, and ethyl orthosilicate can be used to Silicon infiltration on the metal surface and treatment of optical glass can increase the light transmittance. After it is completely hydrolyzed, extremely fine silicon oxide powder is produced, which is used to make phosphors. It can also improve the performance of other resins and the raw material for making silicon polymer compounds. The aerogel obtained by supercritically removing the solvent after hydrolysis of ethyl orthosilicate and trimethyl has the advantages of low specific gravity and good thermal insulation performance. It is widely used in the aerospace and defense fields and has been promoted in the civil field.

Quality Index

Comply with Q/320483 HYH001-2000 standard

Project	Index
Project	SiO₂-28	SiO₂-32	SiO₂-40
SiO₂ content%	28.0-29.0	32.0-34.0	40.0-42.0
Relative Density d₄20℃	0.93-0.94	0.97-1.00	1.04-1.07
Acidity (in Hcl)	≤0.1	≤0.1	≤0.1
Low Distillate (below 110℃)%	≤2	≤2	≤3
Ethanol dissolution test	Qualified	Qualified	Qualified

Package

200L plastic barrel

Storage and Transportation

Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. The storage temperature should not exceed 37℃. Keep the container tightly closed. It should be stored separately from oxidants, acids, and alkalis, and avoid mixed storage. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that easily generate sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable storage materials.

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Slightly odorous, slightly soluble in water, soluble in ethanol and ether. It becomes cloudy gradually in humid air, and precipitates silicic acid after standing still. It is stable when there is no moisture and does not decompose during distillation.

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Slightly odorous, slightly soluble in water, soluble in ethanol and ether. It becomes cloudy gradually in humid air, and precipitates silicic acid after standing still. It is stable when there is no moisture and does not decompose during distillation.
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easily deliquescent, insoluble in water, soluble in many organic solvents. It is produced by the hydrolysis of trimethylchlorosilane. It can easily cause combustion when exposed to high heat, open flames and strong oxidants. The combustion (decomposition) products: carbon monoxide, carbon dioxide, and silicon oxide.
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高沸水解制成的支链硅油，经过精制除杂，颜色，气味，挥发分均有大幅度提升，气味低或无异味。并可根据顾客需求，进一步降低挥发分。

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高沸水解制成的支链硅油，经过精制除杂，颜色，气味，挥发分均有大幅度提升，气味低或无异味。并可根据顾客需求，进一步降低挥发分。

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Silicone Oil

高沸水解制成的支链硅油，经过精制除杂，颜色，气味，挥发分均有大幅度提升，气味低或无异味。并可根据顾客需求，进一步降低挥发分。

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