abietic acid मीनिंग इन हिंदी

उदाहरण वाक्य

1. Rosin exposure in particular may lead to abietic acid dermatitis.
2. It can be prepared by dehydration of abietic acid, which it usually accompanies in mixtures like rosin.
3. It is not acid free particularly containing abietic acid and comes in many size rolls up to wide.
4. Succinic acid may not be an original component of amber, but rather a degradation product of abietic acid.
5. Kraft soap can be reneutralized with sulfuric acid to restore the acidic forms abietic acid, palmitic acid, and related resin acid components.
6. Pimaric acid closely resembles abietic acid into which it passes when distilled in a vacuum; it has been supposed to consist of three isomers.
7. It is the main irritant and contact allergen present in thuja wood . ( " Cf . " pine, where the primary irritant is abietic acid .)
8. Abietic acid can also be extracted from rosin by means of hot alcohol; it crystallizes in leaflets, and on oxidation yields trimellitic acid, isophthalic acid and terebic acid.
9. At high temperatures, copper oxide reacts with hydrogen chloride to water-soluble and mechanically weak copper chloride, and with rosin to salts of copper and abietic acid which is soluble in molten rosin.
10. Examples of resin acids are abietic acid ( sylvic acid ), C 20 H 30 O 2, plicatic acid contained in cedar, and pimaric acid, C 20 H 30 O 2, a constituent of galipot resin.