A new work permit application must be filled out for each new job. In. addition, all work permits in the state of California expire five days after the opening of school in. the fall. this is to insure that all minors report to school in the fall before continuing to work after. summer vacation.
A thiol is a molecule that has a RâSH group. Thiols are like alcohols with an oxygen atom changed with a sulfur one. They have often a very strong and bad smell. Thiols are added to natural gas so that people can smell it. This is because methane does not have a smell but can explode very easily. Thiols are very easy to oxidize. They are also quite acidic, more than alcohols. When the proton is taken away by a base, the thiol can become a nucleophile. It can do reactions like nucleophilic substitution. One of the natural amino acids, cysteine, has a thiol in its structure.
Freebase (0.00 / 0 votes) Rate this definition: Thiol. In organic chemistry, a thiol is an organosulfur compound that contains a carbon-bonded sulfhydryl group. Thiols are the sulfur analogue of alcohols, and the word is a portmanteau of thion + alcohol, with the first word deriving from Greek Î¸Îµá¿Î¿Î½ = sulfur.