ethyl-thiourea的意思|示意

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Ethyl-thiourea is a kind of chemical which is mainly used as a rubber accelerator and vulcanizing agent. It is a white, odorless powder and has the chemical formula C3H6N2S.

In the rubber industry, ethyl-thiourea is used as an accelerator for curing rubber. It is employed in combination with an activator such as zinc oxide, stearic acid, or other surfactants. The accelerator works by increasing the rate of cross-linking between rubber molecules, allowing for a faster curing time. Ethyl-thiourea is also used as a vulcanizing agent, which is a type of chemical which helps join two pieces of rubber together. This is done by creating a cross-linking reaction between the two pieces to make a stronger bond.

In addition, ethyl-thiourea is used as a stabilizer in photographic film development. The chemical is added to the developing solution in order to prevent the development of silver halides. Silver halides are a type of chemical compound which form when light interacts with silver particles. By adding ethyl-thiourea to the development solution, these silver halides are prevented from forming and the image will remain clear.

Ethyl-thiourea is also used in the paper industry as a brightener and as a retarder agent. As a brightener, it is used to make the paper appear brighter and whiter by reducing the amount of yellowing caused by aging. As a retarder agent, ethyl-thiourea is used to slow down the rate of aging in paper products.

Overall, ethyl-thiourea is a versatile chemical that has a multitude of uses across a variety of industries. It is used as a rubber accelerator, vulcanizing agent, photographic stabilizer, paper brightener, and retarder agent.