The nature of the levulinic acid

Levulinic acid, aswell accepted as amyl every keto acid, L-sugar acid, fructose acid, is one of the important articles produced by the hydrolysis. Soluble in baptize and some amoebic solvents, but do not deliquesce in gasoline, kerosene, turpentine, and carbon tetrachloride, etc.; levulinate is a carbonyl containing, α-hydrogen and a carboxyl accumulation of a polyfunctional compound, the amalgam of assorted ablaze actinic basal raw material, amoebic amalgam and industry, agriculture, biologic industry, with a avant-garde ambit of amount in use, the hydrogenation of levulinic acerbic propyl γ-valerolactone is an avant-garde bread-and-butter and as alertness of constructed rubber, algid plasticizer and a surfactant intermediate. The levulinic acerbic chloride as a automated circulating baptize bacteriostatic agent. In agriculture, the amine alkali of levulinic acerbic chloride can be acclimated as herbicides and defoliants. Medicine, levulinic acerbic can be able application anti-inflammatory drugs and intravenous injections starch, glucose, artificial raw abstracts acquired by the abyss of hydrolysis. Usually or added hydrolyzable attendance of a agitator beneath the altitude of heating with hydrochloric acerbic (or sulfuric acid) via the 5 - (hydroxymethyl) furfural breeding step, and again by 5 - hydroxymethylfurfural atomization levulinic acid, filtered and concentrated, and again distilled beneath bargain burden or abstraction products.

The levulinic acerbic is mainly acclimated as the resins, pharmaceuticals, perfumes, blanket materials, and a solvent. In the biologic industry, its calcium alkali can be fabricated of the intravenous bang and indomethacin. Its lower ester can be acclimated for aliment the essences or tobacco flavors. FDA Alertness bifold phenolic acids to aftermath water-soluble resin, clarify cardboard acclimated in cardboard industry production. Can aswell be acclimated for the alertness of pesticides (such as bulb hormones, etc.), dyes, and apparent alive agents. This artefact is low toxicity. Packaging and autumn acclimated artificial drum, additional board reinforcement. Store in a cool, dry, aerial place. Keep abroad from sources of ignition. According to the accoutrement of the combustible actinic storage. The concrete and actinic backdrop of white cool crystal, flammable, hygroscopic. Soluble in baptize and alcohols, ethers and amoebic solvent. Atmospheric beverage beneath about no decomposition, if abiding heating to cotton-mouth and become unsaturated γ-lactone. Melting point of 37.2 ℃. Boiling point of 139 ~ 140 ℃ (1kPa). The about body of 1.1335 (20/4 ℃). Refractive basis nD (20 ℃) ​​1.4396.

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