Which constitute of petroleum are used as solvent for dry cleaning
Answers
Explanation:
Dry cleaners have a substantial history of using chlorinated solvents. Perchloroethylene (PERC or PCE), was first introduced to dry cleaning in 1931 with a substantial increase throughout the 1980s and peaked in the 1990s when closed loop machines were introduced. However, PERC and its associated daughter products are not the only solvent to be concerned with at dry cleaning locations.
Chemicals known to have been utilized as dry-cleaning solvents include: camphor oil, turpentine spirits, benzene, kerosene, white gasoline, petroleum solvents (primarily petroleum naphtha blends), chloroform, carbon tetrachloride (first use in dry cleaning in 1898), perchloroethylene (PERC), trichloroethylene (TCE), 1,1,2-trichlorotrifluoroethane, glycol ethers, 1,1,1-trichloroethane, decamethylcylcopentasiloxane, n-propyl bromide and liquid carbon dioxide.
Petroleum-based cleaners were the most widely used solvents in dry cleaning; however, due to the risk of fires and explosions many cities banned dry cleaning within the city limits. In addition, the business was not able to obtain insurance if white gasoline or another petroleum-based solvent was to be utilized. This is what led William Joseph Stoddard to develop a less volatile petroleum dry cleaning solvent in 1924, which is commonly referred to as Stoddard solvent and has been in use since at least 1928. Stoddard was the predominant dry-cleaning chemical used from the late 20s until at least the late 1950s. It should be noted that not all petroleum solvents are Stoddard, despite that they are generally referred to as such.
Answer:
tetracloroethylene
used as for dry cleaning