Benzylidene acetone exports accounted for first in the country.

苄叉的出口量占全国第一。

No osmyl and no taste.Soluble in Benzene,Acetone,C2H4Cl2,CS2,toluene,party soluble in alcohol,diethyl ether,insoluble in water,gasoline.

溶于、苯、甲苯、二硫化碳、二氯烷，微溶于醇和醚，不易溶于水和汽油。

A method for the synthesis of hexylene glycol by catalytic hydrogenation from diacetone is presented.

介绍以双醇为原料,经催化加氢异己二醇的方法。

Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫酸和反应,新型高效的氧化剂二甲二氧环烷。

Some holoenzymes, such as pyruvate dehydrogenase, are highly compex, with several cofactors.

有一些全酶是高度复杂的，如酸脱氢酶。

The freshly abraded specimen must then be washed in industrial spirit and Analar acetone.

然后，研磨好的新鲜试样必须工业酒精及纯中洗涤。

The curve and its character of the vapor liquid equilibrium of aceton water system was researched.

研究水的相平衡曲线与特点。

It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insoluble in water.

该产品不溶于水，热溶于油脂、石蜡、醇、氯仿、、醚。

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苯甲醛和为原料,氟化钾氧化铝作催化剂苄叉。

Benzalacetone 1,2-propylene glycol ketal was synthesized from benzalacetone and 1,2-propylene glycol in the presence of ptoluene sulphonic acid.

以对甲苯磺酸为催化剂,通过苄叉与-1,2-二醇反应苄叉-1,2-二醇缩。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将大鼠眼球投入到由多聚甲醛、冰醋酸和组的改良固定液中固定后制石蜡切片,经HE染色后显微镜下观察。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的,四丁基溴化铵催化下,高产率得到四溴化碳。

Our main products: Sucralose, Metallic Stearates, Magnesium trisilicate, Magnesium silicate, Calcium acetylacetonate, Synthetic Aluminium Magnesium Carbonate Hydroxide etc.

公司主要产品有三氯蔗糖、硬脂酸盐、三硅酸镁、硅酸镁、酰钙、碱式碳酸铝镁等。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水醇、醚、及水作溶剂,对四川汉源花椒作精油提取研究。

The preparation of hydroxyacetone was studied by esterification of chloroacetone with sodium formate and alcholysis of acetonyl formate with methanol.

以一氯、甲酸钠和甲醇为原料经酯化与醇解两步反应羟基,研究反应条件对相转移催化酯化以及醇解反应蒸馏过程的影响。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以烯和为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化酰的中间体酸异烯酯。

Sevoflurane is synthesized from aceton by vapor phase catalytic fluorination, vapor phase catalytic hydrogenation,chloridization and fluoromethylation, which gives a new synthetic method.

以为原料，经氯化、气相氟化、气相氢化及氟甲基化等一系列改进的方法七氟醚，提供一条新的路线。

On the basis of acetone-phosphomolybdate method to detect phosphorus, the microplate method was developed for the determination of activity units of phytase.

摘要法测磷的基础上，酶活测定时引入微板法。

However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂（如和三氯三氟烷）就不会，操作适用于回收孢子接种物。

Sometimes engineers will use chemicals to clean up of the master on the photoresist or chemical substance, such as hydrogen peroxide, acetonic.

有时工程师会拔取一些化学品去纯不兴母盘上的平刻胶或化学精神，如双氧水，。