查询词典 hydrochloric

By studying the influences of chromogenic time, dosage of DAM and hydrochloric acid, the optimum chromogenic conditions were obtained.

通过研究显色时间、DAM及盐酸用量、共存离子等对吸光度的影响，得出适宜的显色条件。

Prepare before 1.2 anaesthesia and а is taken to suffer body block to break phenolic benzyl of medical hydrochloric acid after the person that with medicine every has clonic or durative blood pressure to lift before art is admitted to hospital bright, every time 10~20mg, everyday 2~3 second, successive 2~4 week, partial patient complementary with Katuopuli.

所有病例术后病理学检查均确诊为嗜铬细胞瘤。1.2麻醉前预备和术前用药凡有阵发性或持续性血压升高者入院后服用а受体阻断药盐酸酚苄明，每次10~20mg，天天2~3次，连续2~4周，部分患者辅以卡托普利。

Stone is from rock, and rock is consist of the mineral, the mineral contain iron is the source of the iron in stone products , iron element spread widely in natural world, but most of them appear to be compound, iron element is belong to medium activity metal, under high temperature is easily to be strongly acted with oxygen, sulfur, chlorine, and easily dissolve in abio-weak acid solution and strong hydrochloric acid solution, at the same time, the strong alkali solution also corrade the iron.

石材是岩石经加工后所产生的制品，岩石是由矿物组成的，其中含铁矿物是石材中铁质的来源。铁元素在自然界中分布甚广，但大多以化合物的方式出现，由于铁元素属中等活泼性的金属，在高温下易和氧、硫、氯等元素发生强烈反应，并易溶于无机稀酸和浓盐酸的溶液中，同时浓碱溶液也易侵蚀铁。

Optimal process conditions for preparing 2-oxo-1-piperazine acetic acid: N,N'-ethylenediamine diacetic acid with hydrochloric acid at a mole ratio of 1 to 2.6 ,was cyclized to form 2-oxo-1-piperazine acetic acid by refluxing for 8 hours.

通过单因素分析，合成S-KP 的最佳反应条件为：在沸腾状态下，回流8小时，HCl∶S-EDDA 的摩尔比为2.6∶1。

The components of the hydrochloric acid and the fire_retardant - an organic diacid in the waste water produced by production of the fire_retardant were analysed rapidly by acid base potentiometer.

采用酸碱电位滴定法快速简便地测定了阻燃剂生产中产生的含有盐酸和阻燃剂———一种有机二元酸的含量。

Epichiorohydrin was synthesized from alkali and glycerol dichlorohydrin which was synthesized from glycerol and industrial hydrochloric acid in the presence of catalyst and additive.

介绍了环氧氯丙烷合成新工艺：在催化剂和添加剂存在下，甘油与工业盐酸反应制得二氯丙醇，然后二氯丙醇与碱反应制得环氧氯丙烷产品。

Epichlorohydrin was synthesized from alkali and glycerol dichlorohydrin which was synthesized from glycerol and industrial hydrochloric acid in the presence of catalyst and additive.

摘 要：介绍了环氧氯丙烷合成新工艺：在催化剂和添加剂存在下，甘油与工业盐酸反应制得二氯丙醇，然后二氯丙醇与碱反应制得环氧氯丙烷产品。

Urinary sample was acidified by 2 mol/L hydrochloric acid and pretreated by liquid-liquid extraction using diethyl ether.

尿样经2 mol/L盐酸酸化后用乙酸乙酯进行萃取。

A production method of potassium dihydrogen phosphate includes the following steps: using phosphoric acid and potassium chloride to make them produce double decompositino reaction to produce potassium dihydric pyrophosphate and hydrogen chloride gas; hydrolizing potassium dihydri pyrophosphate to produce potassium dihydrogen phosphate; and the equipment used can solve the problems of mixed hydrochloric and phosphoric acids corrosion and expansion due to heating.

本发明公开了一种磷酸二氢钾的生产方法，其特征在于用磷酸与氯化钾进行复分解反应，生产焦磷酸二氢钾和氯化氢气体，焦磷酸二氢钾进行水解生产磷酸二氢钾，所用设备解决了盐酸、磷酸混酸腐蚀材质及加热造成的膨胀问题，本发明产品达到了磷酸与氢氧化钾中和法的质量，大幅度地节约了原材料的成本。

In the presence of sodium as catalyst, the ester exchange reaction between methyl dimethoxy acetate and cephalotaxine produced cephalotaxine dimethoxy acetate, which was then hydrolyzed in dilute hydrochloric acid. Spectrum analysis showed one of hydrolytic products was cephalotaxinone.

本文报导己二甲氧基乙酸甲酮和三尖杉碱在金属钠催化下，直接进行酯交换反应生成二甲氧基乙酸三尖杉酯，后者在稀盐酸中水解，水解产物之一经光谱分析碳定为三尖杉酮碱。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。