mercaptan


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Related to mercaptan: ethyl mercaptan

mercaptan

(mərkăp`tăn) or

thiol

(thī`ōl), any of a class of organic compounds containing the group -SH bonded to a carbon atom. The volatile low-molecular-weight mercaptans have disagreeable odors. Mercaptans are found in crude petroleum, and methyl mercaptan is produced as a decay product of animal and vegetable matter. They also are produced by certain plants and animals; e.g., allyl mercaptan is released when onions are cut, butanethiol (butyl mercaptan) derivatives are present in skunk secretion, and mercaptans are among the sulfur compounds causing the disagreeable odor of flatus. T-butyl mercaptan blends are often added to the odorless natural gas used for cooking and serve to warn of gas leaks. Mercaptans take part in a wide variety of chemical reactions. Their principal uses are in jet fuels, pharmaceuticals, and livestock-feed additives.

mercaptan

[mər′kap‚tan]
(organic chemistry)
A group of organosulfur compounds that are derivatives of hydrogen sulfide in the same way that alcohols are derivatives of water; have a characteristically disagreeable odor, and are found with other sulfur compounds in crude petroleum; an example is methyl mercaptan. Also known as thiol.
References in periodicals archive ?
The advantages of the XD-grades over the mercaptan grades are:
In other words, the mercaptan concentration is reduced until such time as adsorptive equilibrium is achieved.
It provides a complete breakdown of individual mercaptan and sulfide components utilizing an electrochemical detection cell in a chromic acid solution.
Procurement Operating Gas Gas Chromatograph, Gas Standard (Calibration) Test Gas 10 Ppm, Ethyl Mercaptan in Nitrogen Test Gas, Reducers for Bottles and Bottles Rent
The PLC converts the weight to gallons which is used to control mercaptan injection and loading pumps.
Limited Tenders are invited for Supply Of Ethyl Mercaptan To Bpcl Mumbai Refinery And Uran Lpg Bottling Plant.
For starters, odorant tank refilling was performed manually from 5-gallon buckets of mercaptan, which led to several potential difficulties.
Oban also neutralizes most industrial chemical odors such as ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine and others.
When the odor threshold values of all samples are determined, they are plotted against the known amounts of odorant, which have been converted to the odor-impact-equivalent of normal butyl mercaptan.
Captain Mercaptan takes his name from mercaptan, the safety additive that BGE and other gas utilities add to normally odorless natural gas to give it a distinctive, easy-to-detect smell.
Dairy foods are chock full of proteins and two of its amino acids, Cysteine and Methionine, are converted by the bugs into hydrogen sulfide (the rotten egg smell) and methyl mercaptan (a smell similar to old gym socks).
The Merox process efficiently and economically treats hydrocarbon streams to remove mercaptan sulfur or to convert mercaptan sulfur to less-objectionable disulfides.