Search results
Results From The WOW.Com Content Network
Thymol (also known as 2-isopropyl-5-methylphenol, IPMP), C 10 H 14 O, is a natural monoterpenoid phenol derivative of p-Cymene, isomeric with carvacrol.It occurs naturally in the oil of thyme, and it is extracted from Thymus vulgaris (common thyme), ajwain, [4] and various other plants as a white crystalline substance of a pleasant aromatic odor and strong antiseptic properties.
The composite is then converted into an AP score of 1-5 using a scale for that year's exam. [5] Students generally receive their scores by mail in mid-July of the year they took the test. Scores can be viewed on the College Board website using My AP. Alternatively, they can receive their scores by phone as early as July 1 for a fee. [6]
In air, terpenoids are converted into various species, such as aldehydes, hydroperoxides, organic nitrates, and epoxides [11] by short-lived free radicals (like the hydroxyl radical) and to a lesser extent by ozone. [12] These new species can dissolve into water droplets and contribute to aerosol and haze formation. [13]
Thymol blue (thymolsulfonephthalein) is a brownish-green or reddish-brown crystalline powder that is used as a pH indicator. It is insoluble in water but soluble in alcohol and dilute alkali solutions.
Fragrance bottles. An aroma compound, also known as an odorant, aroma, fragrance or flavoring, is a chemical compound that has a smell or odor.For an individual chemical or class of chemical compounds to impart a smell or fragrance, it must be sufficiently volatile for transmission via the air to the olfactory system in the upper part of the nose.
Residents in Boynton Beach may notice the smell or taste of chlorine in their tap water for about three weeks into the new year, ... The water division is available for calls from 7 a.m. to 4 p.m ...
device (usu. oil or gas-fired) for heating water for central heating or hot water *, "central heating boiler" (US furnace); vessel in which steam is generated; A car (1930s slang) bomb a striking success; used in the phrases "go (like) a bomb" and "go down a bomb"; Go like a bomb also means, when used of a vehicle, to go very fast an explosive ...
Mercaptan is a harmless chemical that smells like sulfur or rotten eggs that utility companies add to natural gas to make it easier to detect leaks, according to Healthline, a medical information ...