Colorless liquid. Flammable. Slightly soluble in water, hydrolysis is slow in pure water, and can accelerate hydrolysis in the presence of acid or base; The reaction with boiling water gives silica sol without electrolyte. Ethyl orthosilicate reacts with higher alcohols or their esters in the presence of a catalyst.

It is an inorganic compound with the formula TiCl4. Titanium tetrachloride is an important intermediate in the production of titanium and its compounds. At room temperature, titanium tetrachloride is a colorless liquid and smokes in air to form a mixture of titanium dioxide solids and hydrochloric acid droplets.

It is usually a gaseous state, but is usually compressed into a liquid state and transported. After crude oil or natural gas treatment, propane can be obtained from the finished oil. Propane is commonly used as fuel for engines, barbecue food and home heating systems.

Methane is the simplest hydrocarbon. Widely exist in natural gas, biogas, coal mine pit gas, is a high quality gas fuel, is also an important raw material for manufacturing syngas and many chemical products.

Trifluoromethane, also known as trifluoromethane, is a colorless, odorless, non-conductive gas that is an ideal substitute for halogens.

Is colorless, odorless, tasteless, toxic gas, insoluble in water, melting point -199 ° C, boiling point -191.5 ° C. Under the standard condition, the gas density is L.25g /L, which is very different from the air density (1.293g/L under the standard condition), which is also one of the factors prone to gas poisoning. It is a neutral gas.