Maleic sentence example
- Many derivatives are known, some of which exist in two structural forms, exhibiting geometrical isomerism after the mode of fumaric and maleic acids.
- It forms deliquescent crystals, which are readily soluble in alcohol and melt at ioo° C. When heated for some time at 130° C. it yields fumaric acid (q.v.), and on rapid heating at 180° C. gives maleic anhydride and fumaric acid.
- Consequently, of each pair of isomers we may establish beforehand which is the more stable; either in particular circumstances, a direct change taking place, as, for instance, with maleic acid, which when exposed to sunlight in presence of a trace of bromine, yields the isomeric fumaric acid almost at once, or, indirectly, one may conclude that the isomer which forms under greater heat-development is the more stable, at least at lower temperatures.
- Hydriodic acid and phosphorus reduce it to maleic acid and finally to succinic acid.
- Pasteur, Ann., 1853, 88, p. 212); by heating tartaric or racemic acid for some time with water to 165° C.; by the oxidation of laevulose; and by the oxidation of phenol or maleic acid with an alkaline solution of potassium permanganate (0.Advertisement
- Fumaric Acid is produced from petroleum feed stock (butane) via maleic anhydride.
- Other pesticide residues found at levels below statutory levels include aldicarb, maleic hydrazide, tecnazene and thiabendazole.
- Products include vacuum distilled rosin, hydrogenated rosin, polymerized rosin, maleic rosin, rosin ester, paper sizing agent and more.
- Another form of isomerism is occasioned by spatial arrangements, many of the reduced terephthalic acids existing in two stereo-isomeric forms. Baeyer explains this by analogy with fumaric and maleic acids: he assumes the reduced benzene ring to lie in a plane; when both carboxyl groups are on the same side of this plane, the acids, in general, resemble maleic acids, these forms he denotes by rcis-cis, or shortly cis-; when the carboxyl groups are on opposite sides, the acids correspond to fumaric acid, these forms are denoted by rcis-trans, or shortly trans-.
- It forms deliquescent crystals, which are readily soluble in alcohol and melt at iooÃ‚° C. When heated for some time at 130Ã‚° C. it yields fumaric acid (q.v.), and on rapid heating at 180Ã‚° C. gives maleic anhydride and fumaric acid.Advertisement
- Pasteur, Ann., 1853, 88, p. 212); by heating tartaric or racemic acid for some time with water to 165Ã‚° C.; by the oxidation of laevulose; and by the oxidation of phenol or maleic acid with an alkaline solution of potassium permanganate (0.