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Easy to dissolve in the water, does not dissolve in the organic solvent, water absorbant, absorbs water gradually in the air assumes sticks the porodine, can with the alkali soils metallization synthesis solubility duplicate salt, be one good water softener.

易溶于水,不溶于有机溶剂,吸湿性强,在空气中逐渐吸水而呈粘胶状,能与碱土金属化合成可溶性复盐,是一种良好的软水剂。

This paper reports the experimental equipment and technology parameter for the synthesis of diisopropylbenzene and triisopropylbenzene by catalytic alkylation between benzene and propene, the conversion of benzene is more than 98%,the selectivity of diisopropylbenzene and triisopropylbenzene is more than 40% and 36% respectively.

报道了苯与丙烯催化烷基化合成二异丙苯和三异丙苯的实验装置与工艺条件,苯的转化率达98%以上,二异丙苯的选择性≥40%,三异丙苯的选择性≥36%,经分离后可获得纯度≥95%的二异丙苯和三异丙苯产品,所提供的合成工艺基本上无污染,在国内外具有先进的技术。

The gelatin-siloxane nano-particles are prepared from gelatin and 3-(2,3-epoxy propoxy )propyltrimethoxysilicane by performing chemical combination and hydrolytic reaction in acidic condition to obtain sol; and adjusting the pH value to slightly alkaline for performing polymerization reaction of silicane.

将明胶和3-(2,3-环氧丙氧)丙基三甲氧基硅烷在酸性条件进行化合、水解反应;将该溶胶的pH值调节至弱碱性,使硅烷发生聚合反应,即可得明胶-硅氧烷纳米颗粒。

AIM: To observe the effect of diterpenoid compound 5F of Pteris semipinnate L on apoptosis in cultured human pterygium body fibroblasts. METHODS: Fibroblasts collected from human pterygium body were cultured in vitro with 5F at different time point.

目的:观察中药半边旗二萜类化合提取物5F对体外培养的人翼状胬肉成纤维细胞周期的影响及5F诱导细胞凋亡过程超微结构的变化,初步探讨5F对HPFs作用的机制。

Modified synthesis of furanone from pyruvaldehyde by microwave irradiation was studied.

以丙酮醛为原料采用微波法环化合成呋喃酮。

However, it develops that the rate of cool in g dur in g the expansion in any practical nozzle is too fast for the recomb in ation to occur.

然而,实际情况是,然后实际喷管里气流膨胀时冷却速度都很快,使分子来不及重新化合

H2 has the tendency of accelerating synthesis. And the mechanism is that H2 can not only accelerate the refinedness of the powder particle of Ti, make the novel surface of fracture clean, but also enhance the activation of Titanium.

结果表明,在5种不同球磨环境下用Ti粉和活性炭粉都能合成TiC,其中在H2环境下的合成速度最快。H2对TiC的机械合金化合成具有加速作用,其机理是H2不仅能促使Ti与活性炭粉末细化,使断裂的新鲜表面保持清洁,而且能使Ti的活性增强。

Especially , the rearrangement reaction of converting styrene oxide to phenylacetyldehyde were investigated. In this paper, we also studied the method of preparing SO42-/TiO2 by vitriolic titanium boiling regurgitant hydrolyzation and applications of SO42-/TiO2 in the preparation of iso-amyl acetate.

对环氧苯乙烷经分子重排反应制备苯乙醛进行了深入研究;本论文还用硫酸钛沸腾回流水解法制备了纳米SO_4~(2-)/TiO_2固体超强酸粉末,并应用于冰乙酸与异戊醇酯化合成乙酸异戊酯的反应。

To broaden desert shrub new utilizing fields, accelerate desert shrub developing to the direction of high added-value and high benefit, the paper studied on the liquefaction of Salix, Caragana and Poplar in the presence of Phenol under sulfuric acid catalysis. The optimum processing parameters for Salix, Caragana and Poplar liquefaction and resinification were investigated. The effect of molar ratio of formaldehyde to liquefied products and NaOH to liquefied products on the character and glue strength of liquefied products resin was studied.

摘 要:为了开辟沙生灌木资源新的应用领域,促使沙生灌木资源的利用向高附加值、高效益的方向发展,本文以苯酚作液化剂,以稀硫酸作催化剂对沙柳、柠条和杨木进行液化实验,分析了反应温度、液比、催化剂用量及液化时间对液化反应的影响;并研究了沙柳、柠条和杨木液化产物树脂化合成工艺和配方,分析了不同的甲醛与液化产物摩尔比以及氢氧化钠与液化产物摩尔比对沙柳、柠条和杨木液化产物树脂的各项性能的影响。

The study also showed that the compound was active against all three major species of Schistosoma worms that infect humans.

研究也表明,该化合具有很高的活性,对抗寄生在人体内的3种主要类型的血吸虫蠕虫。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

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