硫酸氢钠

The results showed that sodium bisulfate monohydrate was a good catalyst for the synthesis of fenofibrate, which would not cauterize the equipment, was friendly to the environment, and could be reused. The yield of fenofibrate was 88.6%.

改进发现一水合硫酸氢钠是一种不腐蚀设备、对环境友好的优良催化剂，酯化率可达88.6 9%，适合工业化生产。

By using sodium bisulfate as the catalyst, hexyl hexanoate was synthesized.

采用硫酸氢钠为催化剂合成了己酸己酯，考察了催化剂用量、醇酸物质的量比、反应时间、带水剂用量及催化剂重复使用次数等因素对收率的影响。

The influence of temperature, catalyst and the molar ratio of raw materials on the yield of the product were studied.

分别考察了硫酸氢钠和对甲苯磺酸对该反应的催化性能，确定了各自的最佳合成条件。

The effects of reaction time and the amount of the catalyst on the ester yield were investigated with sodium bisulfate monohydrate green catalyst.

苯甲酸乙酯制备是典型的有机实验，本文采用自行设计的回流－吸水反应装置，一水硫酸氢钠为绿色催化剂，考察了反应时间、催化剂用量对酯化反应产率的影响。

In this paper the synthesis of propyl gallate from gallic acid and n-propyl alcohol as reactants and catalyzed by sodium bisulfate was studied; various influencing factors on the reaction were also investigated.

研究了以硫酸氢钠为催化剂，没食子酸和正丙醇为原料合成没食子酸丙酯，并考察影响反应的因素。

Abbe Refractometer product and infrared spectroscopy were determined to prove to be a product for the synthesis of products we need , confirmed that the sodium bisulfate catalyses the feasibility of a series of esters.

产品用阿贝折光仪和红外光谱仪进行了测定，证明产物为所要合成的产品，证实了用硫酸氢钠催化一系列酯的可行性。

The orthogonal experimental result showed that the optimum reaction conditions were as follows: citric acid 7.7 g, isoamyl alcohol 21.7 mL(the molar ratio of citric acid to isoamyl alcohol, 1:5); 1.0 g (4% of the total weight of raw material) NaHSO4H2O as catalyst; 25 mL dimethyl benzene as deaquation reagent; microwave irradiation time 15 mm; the yield of product was 83.2%(the rate of esterification was 95.1%).

通过正交实验，得到最佳的工艺条件如下：柠檬酸7.7g，异戊醇21.7mL（酸醇摩尔比为1：5）；一水合硫酸氢钠作催化剂，用量为1.0 g（为原料总质量的4%）；带水剂为二甲苯，用量为25mL；微波辐射时间为15min。

Objective To study the influence of formaldehyde sulphoxylate on the expression of glial fibrillar acidic protein in mice hippocampus.

目的研究次硫酸氢钠甲醛对小鼠海马神经胶质酸性蛋白表达的影响。

Objective To study the influence of formaldehyde sulphoxylate on the expression of glial fibrillar acidic protein in mice hippocampus.

目的 研究次硫酸氢钠甲醛对小鼠海马神经胶质酸性蛋白表达的影响。

Diisopentyl oxalate was synthesized with oxalic acid and isoamyl alcohol as raw materials and sodium bisulfate as catalyst.

以草酸和异戊醇为原料，采用硫酸氢钠作催化剂合成草酸二异戊酯。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。