Dab tsi yog cov roj silicone?

Silicone Roj, chemically known as dimethyl silicone oil or polydimethyl siloxane, with a CAS number of 63148-62-9, is a colorless and transparent oily organosilicon compound. Its relative density (d20⁴) is 1.07, freezing point -40℃, flash point >300 degree, nws yog soluble hauv ether tab sis insoluble hauv dej. Cov tshuaj no tsuas yog siv los ua cov kua nyob ruaj ruaj nyob hauv cov roj chromatography, nrog kev ua haujlwm kub ntawm 200℃thiab cov kuab tshuaj ether