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2 4-D (Herbicide)
2,4-dichlorophenoxyacetic acid (2,4-D) See AUXIN.... Read more |
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dispel
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gallic acid
gallic acid or 3,4,5-trihydroxybenzoic acid , C 6 H 2 (OH) 3 CO 2 H, colorless crystalline organic acid found in gallnuts, sumach, tea leaves, oak bark, and many other plants, both in its free state and as part of the tannin molecule (see tannin ). Since gallic acid has hydroxyl groups and a... Read more |
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Emissions trading
Emissions Trading Emissions trading brings the rules of the marketplace to environmental regulation. For example, a government trying to control acid rain might set a limit of ten metric tons on emissions of sulfur dioxide SO2 (which causes acid rain) in a particular year. If there are 1,000... Read more |
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tartaric acid
tartaric acid HO 2 CCHOHCHOHCO 2 H, white crystalline dicarboxylic acid. It occurs as three distinct isomers , the dextro-, levo-, and meso- forms. The dextro- and levo- forms are optically active; the meso- form is optically inactive, as is racemic acid, a mixture of equal parts of the ... Read more |
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OS2
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zwitterion
Zwitterions Zwitterions (the word is derived from the German for "hybrid ion") are ions that are electrically neutral overall but contain nonadjacent regions of positive and negative charges; they are sometimes referred to as "dipolar ions." The best-known examples of... Read more |
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Ornithine
ornithine (Orn) An amino acid, H2N(CH2)3CH(NH2)COOH, that is not a constituent of proteins but is important in living organisms as an intermediate in the reactions of the urea cycle and in arginine synthesis.... Read more |
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butyric acid
butyric acid or butanoic acid , CH 3 CH 2 CH 2 CO 2 H, viscous, foul-smelling, liquid carboxylic acid; m.p. about -5°C; b.p. 163.5°C. It is miscible with water, ethanol, and ether. It is a low molecular weight fatty acid that is present in butter as an ester of glycerol; the odor of... Read more |
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polyethylene
polyethylene , widely used plastic . It is a polymer of ethylene , CH 2 [symbol]CH 2 , having the formula (-CH 2 -CH 2 -) n , and is produced at high pressures and temperatures in the presence of any one of several catalysts , depending on the desired properties for the finished product.... Read more |
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