English name : 3,7 - dimethyl-6-Octenal; 3,7 - dimethyl-6-octena; 2,3 - dihydrocitral; 3,7 - dimethyl-6-octen-1-al; 3,7 - dimethyl-6-octenal; beta-citronellal; citronellal; d-rhodinal; rhodinal

< font face = "Arial" > nature Description : colorless and transparent liquid. Boiling Point 204-206 ° C, 90 ° C (1.87), 47 ° C (133kPa), the relative density of 0.856-0.860 (15/15 ° C), the refractive index 1.4460. Soluble in ethanol; Ether; Chloroform, water-soluble. With pepper flavor. Because molecules are asymmetric carbon atoms, there is an optical isomers. From the natural Citronellal, depending on the different types of plants, or to the right-exist, or L-body presence. L-called Rose Red aldehyde (Rhodinal), and sodium sulfite easy Addition, generate crystalline compounds can be used for purification of this nature and identification.

production methods : the lemon eucalyptus oil Citronellal content of 80-90%, Java vanilla oil content of 30-40% in industry and the available methods Isolated from natural Preparation Plant. The synthesis method is mainly through pinene pinane production; 3,7 - dimethyl-1 ,6 Kissin diene-and Citronellol stage the Citronellal; Citronellol may also lead chromium catalyst in the presence of catalytic dehydrogenation admission to the system. Moreover, the use of formic acid or nickel contained in alumina and nickel catalyst for adding sodium carbonate, isopropanol will hydride lemon, the reaction temperature of 140 ° C, pressure up to 14.7MPa under conditions can be obtained Citronellal.

purposes : Citronellal the High Flavor rarely used, but cheap soap Flavor used applications. Vanilla mainly used in the manufacture of alcohol and vinegar hydroxy lemongrass. Hydrogenation is also used as incense two ketone Viola of raw materials, varies by Hu menthol manufacture of synthetic menthol. Hydroxy Citronellal which is the most valuable spices one

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