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Organic silicones

Tetramethyl orthosilicate

CAS number

681-84-5

Molecular formula C4H12O4Si
Product name Tetramethyl orthosilicate
Molecular Structure

Appearance:colourless liquid

Density:1.023

Boiling Point:121-122ºC

Melting Point:-2ºC

Flash Point:26ºC

Refractive Index:1.367-1.37

Water Solubility:hydrolysis

Storage Condition:Flammables area

Vapor Density:5.25 (vs air)

Vapor Pressure:3.35 psi ( 20 °C)


Cas No: 681-84-5


This is a chemical compound known as 2-propanol, or isopropyl alcohol. It is a colorless, flammable liquid with a strong odor. It has a molecular formula of C₃H₈O and a molecular weight of 60.10 g/mol. It is miscible in water and is a widely used industrial solvent.


2-propanol is used in the manufacture of a variety of industrial chemicals, such as isopropyl acetate, isopropyl myristate, and isopropyl palmitate. It is also used as a solvent in the production of paints, varnishes, lacquers, and inks. Additionally, it is used as a fuel additive, a cleaning agent, and a disinfectant.


2-propanol is an excellent solvent for organic materials and has a low toxicity. It is a common ingredient in many pharmaceutical, cosmetic, and household products, such as rubbing alcohol, hand sanitizers, and skin lotions. It is also used as a fuel for lighters and camp stoves.


2-propanol is flammable and should be handled with caution. It should be stored in a cool, dry place and should be kept away from sources of ignition. Inhalation of the vapors can be irritating to the eyes and respiratory tract, and skin contact can cause irritation and dermatitis. It is important to wear protective clothing and safety equipment when handling this material.


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