矾

Alum and dried alum have significant bacteriostatic effect in vitro.

白矾及枯矾在体外有明显的抑菌作用。

To observe the effect of Daifansan and its components to rat's intrahepatic cholestasis induced by estradiol benzoate.

观察黛矾散及其各组分对雌激素苯甲酸雌二醇诱导的大鼠肝内胆汁淤积的影响。

Ethyl decanoate was synthesized from capric acid and ethanol by using ferric potassium alum as catalyst.

以铁钾矾为催化剂，通过癸酸与乙醇反应合成了癸酸乙酯。

The results showed that new-type solid ferric potassium alum was a good catalyst for the synthesis of ethyl decanoate and the optimum conditions were as follows: molar ratio of acid to alcohol was 1∶2, the use level of catalyst was 0.6 g/0.05 mol capric acid, water-taking reagent benzene was...

结果表明，新型固体酸铁钾矾是合成癸酸乙酯的良好催化剂，在酸醇物质的量比为1∶2，催化剂用量为0.6g(0.05mol癸酸)，带水剂苯为15mL，反应时间为2.5h的条件下，癸酸乙酯的酯化率可达98%。

The results showed that new-type solid ferric potassium alum was a good catalyst for the synthesis of ethyl decanoate and the optimum conditions were as follows: molar ratio of acid to alcohol was 1:2, the use level of catalyst was 0.6g/0.05 mol capric acid, water-taking reagent benzene was 15 mL, reaction time was 2.5 h and the yield of ethyl decanoate could reach 98%.

结果表明，新型固体酸铁钾矾是合成葵酸乙酯的良好催化剂，在酸醇物质的量比为1：2，催化剂用量为0.69（0.05 mol癸酸），带水剂苯为15mL，反应时间为2.5h的条件下，癸酸乙酯的酯化率可达98%。

A light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.

轻而软的银白色碱金属元素，空气中能迅速氧化，能与水发生剧烈反应，以天然化合物状态大量存在于海水、光卤石、钾盐镁矾和钾盐中。

The activity of superoxide dismutase, content of chlorophyllans element S in the leaves of Symplocos tetragona treated with 10 mmol/L NaHSO3, and pH buffering capacity in cell sap were determined in order to explore the resistance mechanism of S. tetragona to SO2 pollutant in this paper.

野外调查了棱角山矾抗SO2大气污染的生长状况，为探讨其抗性机理，进行了室内外加HSO3-处理试验，测定了SOD酶活性、叶绿素含量、硫含量和细胞液pH值及其缓冲能力。

Influence of the concentration of Cr in the leachate and quantity of Pb(CH3COO)2 of Pb(NO3)2 on the reaction of synthesizing yellow chrome was also studied. Finally, according to the criterion and standard method in GB3184-82, some yellow chrome synthesized in the experiments was sampled and the concentration of PbCrO4 in these samples was determined. The following conclusion can be drawn from these experiments.

根据中华人民共和国国家标准GB3184-82中的规定铅铬黄颜料的技术质量指标和检测方法，测定了铬黄样品中铬酸铅含量的厂迄回【、矾士牢位论父泅仰yW盯皿'S川mS达标情况，结论如下：门）反应中重铬酸盐的浓度并不需要达到前人所提出的150～2509·L'的范围，在一定条件下低于此浓度时对铬黄生成反应并无不利影响。

For the exploitation of mineral resources, there are 10 species, of which, anthracite, coal-bed methane, pyrite, clay, bauxite mining stone of the most value.

可供开采的矿产资源有10余种，其中，无烟煤、煤层气、硫铁矿、粘土、矾石最具开采价值。

The influence of temperature,time,pulp density,oxygen partial pressure,material grade on cyanidation extraction rate was researched.

针对温度、滞留时间、矿浆浓度、氧分压、物料粒度等因素对金氰化浸出率的影响进行了研究，并讨论了黄钾铁矾的生成对银回收率的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。