性状:红色结晶;在湿空气中易潮湿,易溶于水,也溶于乙醇、醚和丙酮;脱水后呈浅兰色粉末。
Appearance: Red crystal. Easily deliquescent in wet air, soluble in water, alcohol and acetone, it becomes light-blue powder after losing the crystal water.
以大豆毛油为原料,通过水化脱胶、丙酮去油和乙醇萃取等过程,提取了纯度较高的卵磷脂。
Using soybean oil as raw material, pure soybean lecithin was obtained by degumming with water, defatting with acetone and extracting with ethanol.
性状:白色三角晶体。易潮解,稍有醋酸气味。溶于水和乙醇,不溶于丙酮。
Prop. :White triangle crystal, easy deliquescence, with taste of acetic acid, soluble in water and ethanol, insoluble in acetone.
理化性质:白色结晶性粉末、溶于水、稀醇、液氨和二甲基甲酰胺,而不溶于乙醇、醚和丙酮。
Characters: White crystalline powder, soluble in water, dilute alcohol, liquid ammonia and dimethylformamide, and not soluble in ethanol, ether and acetone.
方法在微波功率和萃取时间一定的条件下,分别选用有机溶剂甲醇、乙醇、甲苯、丙酮及环己烷为提取剂,进行间歇性提取。
METHOD Under the same conditions of microwave power and extraction time, methanol, alcohol, toluene, acetone and hexamethylene were used as the extractant to carry out intermittent extraction.
这些箔片和他的连接线到电极,必须能够经受油墨中的溶剂,如,丙酮,乙醇,甲基酮和水。
The foil and its connections to the charge electrodes must withstand inks based on a range of solvents such as acetone, ethanol, methyl-ethyl-ketone and water.
测量了乙醇、甲苯、丙酮、甲醇、苯和氨水对元件的影响,乙醇仍为测量甲醛的主要干扰气体。
Influences of ethanol, toluene, acetone, methanol, benzene and ammonia were measured, and ethanol was still the main interfering gas for formaldehyde detection.
丙酮是一种比较常见的被用来测定元件是否重新标记的化学品,但是不太严格要求的话用三个比例的矿物油和一个比例的乙醇混合而成的溶剂也可以。
Acetone is a common chemical to determine if the part has been remarked, but a less harsh solvent is a combination of 3 parts mineral spirits and one part alcohol.
方法:以叶绿素提取率为指标,对脱镁叶绿酸制备的乙醇法和丙酮法工艺进行比较,用正交试验法对丙酮法 的工艺条件进行优化。
METHODS:Based on the extraction rate of chlorophyll, acetone method was compared with alcohol method and the preparing factors of acetone method was optimized by orthogonal design.
其生物系列清洁剂产品清洁效果优异,不含乙醇、丙酮等石油化学成份,对环境和人体安全无害。
Without any oil chemical composition such as ethanol, acetone etc. , the series of biological cleaner are effective and friendly to environment and human body.
丙酮酸可以通过把葡萄糖转化为碳水化合物,通过乙酰辅酶a转化为脂肪或能量,也可转化为丙氨酸和乙醇。
Pyruvate can be converted to carbohydrates via gluconeogenesis, to fatty acids or energy through acetyl-CoA, to the amino acid alanine and to ethanol.
丙酮酸可以通过把葡萄糖转化为碳水化合物,通过乙酰辅酶a转化为脂肪或能量,也可转化为丙氨酸和乙醇。
Pyruvate can be converted to carbohydrates via gluconeogenesis, to fatty acids or energy through acetyl-CoA, to the amino acid alanine and to ethanol.
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