盐酸

Seven 1-phenyl-(4-pyridinyl)acetylene derivatives were conveniently synthesized in this paper using corresponding styrylpyridines as starting materials by bromination, rearrangement and debromination.

本文采用简单易行的方法从苯乙烯基吡啶类衍生物通过溴化、重排和脱溴化反应合成了7种苯乙炔基吡啶类单体，研究了它们在1mol/L盐酸水溶液中的光环加成反应。

Centrophenoxine combined with point thread embedding protects the nerve cells in the dentale gyrus area of the hippocampus better and improves the learning and memory of the VD model rats more effectively.

在2006年3～8月采用药物和埋线结合的方法，用盐酸甲氯芬酯联合穴位埋线治疗VD大鼠，观察该方法对VD大鼠海马神经细胞及学习记忆的影响，以期为中西医结合治疗VD提供实验依据。

centrophenoxine combined with point thread embedding protects the nerve cells in the dentale gyrus area of the hippocampus better and improves the learning and memory of the vd model rats more effectively.

盐酸甲氯芬酯联合穴位埋线能保护vd大鼠海马神经细胞，明显提高其学习记忆能力。

AIM: To investigate the transdermic absorption and ac cumulation in vivo after dermic administration of 1% liquor of terbinafini hydrochloridum.

目的观察1%盐酸特比萘芬溶液经皮肤给药后药物在体内的吸收性和蓄积性。

The chemistry behavior research of wollastonite indicated that the silicon-potassium fertilizer has a chemical active in organic acid.The factors affecting manurial effect of silicon-potassium fertilizer are not only soil pH and desilicification,but also content and type of organ in the soil.Wollastonite chemistry behavior indicates that silicic acid can be dissolved out from silicon-potassium fertilizer in chlorhydric acid solution if pH of solution is not smaller than 2. The drop of apparent density,increase of DBP sorptive rate and specific surface for leavings indicate that hydrated silicon oxide is polyporous,and those mineralogic feature presignify that silicon-potassium fertilizer has a role of conservation of both Moisture and Fertility and improving soil structure.After active ingredient releasing,silicon-potassium fertilizer leaves half the substance (non-active ingredient)in soil.

熟料单矿物在酸溶液中的化学行为研究表明，硅钾肥矿物在有机弱酸中的化学活性较好，影响硅钾肥肥效发挥的因素是土壤pH值和土壤的去硅化程度，还有土壤有机质的含量与种类；硅灰石在盐酸溶液中化学行为表明，在反应体系pH不小于2的情况下，硅钾肥矿物大量溶出硅酸根组分；溶解残余物表观密度降低、DBP吸着率和比表面积增加表明水合二氧化硅是以多孔形式存在，为硅钾肥具有保水保肥、改良土壤结构的提供了矿物学依据。

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。

In the synthesis of 2,3,5-trichloropyridine, 2-aminopyridine was firstly chloridized to 2-amino-3, 5-dichloropyridine, and then sodium nitrite solution was added with the existence of hydrogen chloride to diazotize the 2-amino-3,5-dichloropyridine.

在2，3，5-三氯吡啶的合成上，首先通过对2-氨基吡啶的氯化生成2-氨基-3，5-二氯吡啶，然后再有盐酸存在条件下加亚硝酸钠溶液重氮化后，发生桑德迈尔反应生成2，3，5-三氯吡啶和3，5-二氯吡啶-2-酮的混合物，最后用氯化亚砜进行再次氯化，经处理得到产品2，3，5-三氯吡啶。

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。

ABSTRACT : Objective To establish a HPLC method for determination of impurity dicyanodiamide and impurity(1) and impurity(2) in Metformin hydrochloride and Glibenclamide Tablets.

目的建立 HPLC 方法测定复方盐酸二甲双胍格列苯脲片中已知有关物质双氰胺杂质(1)和杂质(2)的含量。

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。