查询词典 hydrochloric acid

Currently 14 existing products, according to campaign is divided into four categories: one category is phosphorus chemical series, to yellow phosphorus, phosphoric acid, sodium tripolyphosphate-based, phosphoric acid, sodium tripolyphosphate of the 50,000 tons / Year; second category is the chlor-alkali series, caustic soda, hydrochloric acid, liquid chlorine, hydrazine hydrate, polyethylene butyral mainly three types of products is manganese, manganese powder, manganese ingots, mainly Electrolytic Manganese, One Electrolytic Manganese annual production capacity of 10,000 tons, manganese ingot processing capacity 15,000 tons / year; four other products, including oxygen, acetylene, such as selenium dioxide.

目前现有产品14个，按系列分为四大类：一类是磷化工系列，以黄磷、磷酸、三聚磷酸钠为主，其中磷酸、三聚磷酸钠各5万吨／年；二类是氯碱系列，以烧碱、盐酸、液氯、水合肼、聚乙烯缩丁醛为主；三类是锰产品系列，以锰粉、锰锭、电解锰为主，其中电解锰年生产能力为1万吨，锰锭加工能力1.5万吨／年；四类是其他产品包括氧气、乙炔、二氧化硒等。

Chemical Additives, Auxiliary: ketamine , phosphoric acid , sodium hydroxide , acetic acid , potassium chloride , sodium bicarbonate , bentonite , calcium chloride , sodium chloride , bromelain , hydrochloric acid , titanium dioxide , potassium nitrate , anhydrous ammonia , stearic acid

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Mainly engaged in fine chemicals, chemical reagents precious metals, silver nitrate, the acid chloride, potassium cyanide-gold, Sulfite the salt, molecular Silver, silver, industrial ethanol, chemical reagents sulfuric acid, hydrochloric acid, nitric acid, ethanol and 95 percent ethanol and chemical reagents and other electronic products research and production.

主要从事精细化工，贵金属化学试剂，硝酸银，氯金酸，氰化亚金钾，亚硫酸金盐，分子银浆，银粉，工业无水乙醇，化学试剂硫酸，盐酸，硝酸，无水乙醇，95%乙醇等电子和化学试剂产品研究与生产。

Using levulinic acid and phenol as raw materials, hydrochloric acid as catalyst and thioglycolic acid as assistant catalyst, the synthesis technology of diphenolic acid, a new polymer material substitution for biphenol A, was investigated.

研究了以苯酚和新型平台化合物乙酰丙酸为原料，采用盐酸为催化剂、巯基乙酸为助催化剂催化合成高分子材料单体双酚酸的合成工艺。

Seven colorimetric methods Biuret, Lowry, a modified Lowry technique using bicinchoninic acid, Coomassie brilliant blue G (CBBG dye-binding in phosphoric acid, perchloric acid or hydrochloric acid, and bromophenol blue dye-binding were evaluated for determination of protein concentration in human whole saliva.

本实验以七种定量蛋白质之方法（Biuret法，Lowry法，BCA法，CBBG染料结合法、BPB染料结合法），利用三种参考蛋白质评估测定人类唾液蛋白质浓度之差异性。

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。

By using the sodium silicate and waste hydrochloric acid as raw materials, polysilicic acid is prepared. The study shows that, under the conditions of the concentration of sodium silicic acid being 4%-8%, the pH, and the reaction time being about 5 hour, the stable polysilicic acid is made.

以水玻璃、废盐酸为原料，制备聚硅酸，研究表明：在硅酸钠浓度为4%~8%，pH小于4的条件下，室温熟化5h左右，可制得稳定的聚硅酸。

Methylene blue is reduced and faded by ascorbic acid in the medium of dilute hydrochloric acid（ pH=2） with sulfanilic acid as a catalyst.The optimal conditions of the fading reaction were investigated in detail.Based on this fading reaction a new spectrophotometric method for the determination of ascorbic acid was established.

确定了亚甲蓝与抗坏血酸褪色反应的最佳条件，在 pH=2的缓冲溶液和对氨基苯磺酸存在的条件下，抗坏血酸能够很快还原亚甲蓝并使之褪色，褪色反应的体系具有很好的稳定性。

Inorganic, or mineral, acids include sulfuric acid, nitric acid, hydrochloric acid, and phosphoric acid.

酸包括硫酸、硝酸、盐酸和磷酸等无机酸或矿物酸，以及羧酸、磺酸和酚类等有机酸。

Strong corrosion fluid sulfuric acid, nitric acid, phosphorous acid, hydrochloric acid, caustic sodium and organic solvent, etc.

强腐蚀性流体(硫酸、硝酸、磷酸、盐酸类、苛性钠及有机溶剂等)。

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。