查询词典 potassium alum

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%。

Cruller: Potassium alum which found in Cruller is a type of non-organic aluminum substance, may not be eaten frequently.

8油条：油条中的明矾，是含铝的无机物，不可经常食用。

Cruller: In the cruller potassium alum, is contains the aluminum the

油条：油条中的明矾，是含铝的无机物，不可经常食用。

"The most important alums are those of potassium sulfate potassium alum, or potash alum, K2SO4XAl2(SO43X24H2O, ammonium sulfate, and sodium sulfate."

最重要的明矾为硫酸钾，又称「钾明矾」，分子式为K2SO4？Al2(SO4)3？24H2O；硫酸铵、硫酸钠。

Paper pulp and mixed blowing agent (sodium bicarbonate,potassium alum,starch,potas- sium D-bitartrate,and calcium carbonate) was used to produce the foaming pulp material.

以纸浆为原料，使用复合发泡剂(碳酸氢钠、钾明矾、淀粉、酒石酸氢钾、轻质碳酸钙)，制作纸浆发泡缓冲材料，得到稳定的实验配方，所得发泡材料的静态缓冲系数在4～5之间。

Aqua, Alcohol Denat(SD Alcohol 39C), Rosa Damascena Flower Oil , Rosmarinus Officinalis Leaf Oil , Potassium Alum , Citrus Aurentium Amara Flower Water , Propylene Glycol , Mentha Piperita Oil , Commiphora Myrrha Extract , Styrax Benzoin Resin Extract , Melissa Officinalis Seed Oil , Vitis Vinifera Seed Extract .

一款收敛为主的化妆水，成分比较刺激；酒精为基底，加入了大量的植物性收敛及保湿成分（薄荷、玫瑰、苦橙、迷迭香和没药），而且还有明矾这个刺激性碱剂；葡萄籽成分很少，适合混合偏油皮肤使用；如果是敏感及中干性皮肤的话并不推荐。

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

以铁钾矾为催化剂，通过葵酸与乙醇反应合成了癸酸乙酯。

FOOD ADDITIVES:BURNT POTASSIUM ALUM, POTASSIUM ALUM CRYSTAL, ALUM.

食品级添加物：烧钾明矾。结晶钾明矾。明矾。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。