Vanilla oil

Extraction source: This product is a volatile oil from the distillation of water vapor in the whole grass of Gymbopogon distans (Nees) ACamusContaining pepper ketoneSe C10H15O shall not be less than 88.0% (g/g)character" this product is a colorless or pale yellow liquid, there are similar mint aroma, bitter, slightly coolExtraction Source: This product can be mixed with ethanol, chloroform or ether at will, almost insoluble in waterrelative density of : The relative density of this product is 0.930 to 0.936 at 25 degrees CThe refractive index ofis 1.483 to 1.485(1) take this product about 0.5 ml, plus 2,4--nitluride perchloric acid solution (take 2,4 dinitrophenylpropropyl 0.24 g, plus 30% per chloric acid to dissolve into 10 ml) 1 to 2 drops, the oil layer appears orange red or red(2) take the solution under the content determination, according to the photolight-splitting method (China Pharmacopoeia 1977 edition of an appendix 32 pages) assay, at the wavelength of (234 x 1) nm has the maximum absorption" alkalinity" take this product 5 ml, plus neutral ethanol (for bromine musk grass phenol blue indicator show neutral) 5 ml, shake well, plus bromine vanilla phenol blue indicator 2 drops, not greenheavy metal take this product 1 ml, add ethanol 9 ml, shake well, add dilute acetic acid 2 ml, hydrogen sulfurization to saturate, such as color rendering, and standard lead solution 1 ml with the same method made of control liquid: comparison, not deeper (ten parts per million)"content determination" to take this product, precision calledEthanol is made into a solution containing 5 ?g per 1 ml, measured by the photolight-splitting method (appendix 32), the absorption is measured at the wavelength of (234 x 1) nm, and the absorption coefficient of (C10H16O) is calculated at 884the role and use of the flat wheezing medicine, relax the bronchial smooth muscleFor chronic bronchitis, bronchial asthma, etcUsage and Dosage: 0.8 to 1.2 ml/time, 3 times/day storage, cover the light, seal and save preparation: vanilla oil and gas mist