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Acrylic acid (IUPAC: propenoic acid) is an organic compound with the formula CH2=CHCOOH. It is the simplest unsaturated carboxylic acid, consisting of a vinyl group connected directly to a carboxylic acid terminus. This colorless liquid has a characteristic acrid or tart smell. It is miscible with water, alcohols, ethers, and chloroform. More than a million tons are produced annually.

Other names

Acrylic acid
Acroleic acid
Ethylenecarboxylic acid
Propenoic acid
Vinylformic acid

Methacrylic acid, abbreviated MAA, is an organic compound. This colorless, viscous liquid is a carboxylic acid with an acrid unpleasant odor. It is soluble in warm water and miscible with most organic solvents. Methacrylic acid is produced industrially on a large scale as a precursor to its esters, especially methyl methacrylate (MMA) and poly(methyl methacrylate) (PMMA). MAA occurs naturally in small amounts in the oil of Roman chamomile.

Production

Gas duster, also known as canned air, is a product used for cleaning or dusting electronic equipment and other sensitive devices that cannot be cleaned using water.The products are most often a can that, when a trigger is pressed, blasts a stream of compressed gas through a nozzle. Despite the name "canned air", the cans actually contain gases that are compressable into liquids. True liquid air is not practical, as it cannot be stored in metal spray cans due to extreme pressure and temperature requirements.