查询词典 sodium chloride

The synthesis of benzyl benzoate from sodium benzoate and benzyl chloride by phase transfer catalysis process is studied in the article.

由苯甲酸钠和氯化苄通过相转移催化法合成了苯甲酸苄酯，考察了几种季铵盐类相转移催化剂的亲核取代反应性能。

Some of the important ones are sodium, potassium , chloride, calcium and magnesium

有些重要的带电粒子是钠、钾、氯化物、钙和镁。

In this paper, the bigheads were stored at 0 ℃ and -3 ℃ and coated with 1% sodium alginate solution and 1% calcium chloride solution.

摘 要：以淡水鱼鳙鱼为研究对象，在0℃和-3℃进行贮藏保鲜，并用1%海藻酸钠＋1%氯化钙涂膜保鲜。

Soda ash,raw salt,bromide,melamine,calcium chloride,and sodium nitrate rank the first in same trade in the country in terms of the indexes of scale,returns and market shares.Moreover more than 30 kinds of products of SHG have been certified by the ISO9000 series international quality system certification.Shandong

现有主要产品40余种，其中主导产品纯碱、原盐、溴素、三聚氰胺、硝盐、氯化钙等的规模、质量、效益、市场占有率等指标，均居全国同行业首位，并有30多种产品通过了ISO9000质量体系认证。

Ammonium gas, ammonia, ammonium salt, ammonium hydrogen carbonate, ammonium sulfate, ammonium chloride, calcium hydrogen oxide, calx, sodium hydroxide and so on.

本节课学生会听说读写的名词有：氨气、氨水、铵盐、碳酸氢铵、硫酸铵、氯化铵、氢氧化钙、生石灰、氢氧化钠等。

It was found that sodium hydroxide concentration of alkalizing tobacco stem,the amount of carbon disulfide,the reaction time of carbon disulfide,and the amount of magnesium chloride had greater impact on the cellulose xanthate property of Cu2+removal.

实验结果表明，烟梗碱化的NaOH浓度、CS2的加入量、CS2的反应时间、MgCl2的浓度等4个因素对纤维素黄原酸酯去除Cu2+的性能影响较大。

The local lesion assay indicated that: contacted with TMV infected leaf juice dilution over 12 h, the disinfestants whose inactivation ratio of TMV above 80% are as follows: 7% sodium hypochlorite at 10 μLL^(-1), 30% chloride of lime at 15 mgL^(-1), 40% Yubao at 75 μLL^(-1) and 98% potassium permanganate at 20 mgL^(-1), 10% chlorine dioxide at 25 mgL^(-1) inactivation ratio of TMV less than 50%.

结果表明，与TMV病叶汁液2万倍稀释液接触12 h，体积分数7%有效氯次氯酸钠10μLL^(-1)、质量分数30%有效氯漂白粉15 mgL^(-1)、体积分数40% N-羟乙基亚甲胺多聚物75μLL^(-1)和质量分数98%高锰酸钾20 mgL^(-1)对TMV的抑制率高于80%，质量分数10%二氧化氯粉剂25 mgL^(-1)对TMV的抑制率低于50%。

Local lesion assay indicated that when mixed with TMV-infected leaf juice dilution within 3 minutes, 5 disinfectants showed 100% inactivation ratio, including 30% chloride of lime 1:9 solution, 98% trisodium phosphate 1:9 solution, 7% sodium hypochlorite 1:150 solution, anonymity disinfectant used in USA 1:125 solution, and 75% alcohol solution.

摘 要：为了指导烟草漂浮育苗中剪叶工具消毒剂的使用，采用半叶法测定了9种药剂对烟草病叶汁液中TMV的钝化效果，采用叶面喷雾法测定了药剂对烟草的药害浓度与药害症状。

Chapter two 4-Hydroxybenzoic acid is connected with PEG6000 through defoliant DCC at rooom temperature, then the product is refluxed with chloroacetic acid in acetone to afford PEG-bound phenyloxyacetic acid, which is reacted with thionyl chloride, ammonium thiocyanate and arylamines in turn to give PEG-bound disubstituded thioureas. After the cleavage with sodium methoxide in methanol, the eleven disubstituted thioureas are obtained.

第二章 利用PEG6000作载体，通过脱水剂DCC在室温下将对羟基苯甲酸以酯键连接在PEG6000上，再与氯乙酸在较温和的条件下生成PEG6000支载的芳氧乙酸，然后，依次与亚硫酰氯、硫氰酸铵、芳胺反应，生成PEG6000支载的硫脲，最后用甲醇钠的甲醇溶液切割PEG，得到了十一种1，3-二取代硫脲。

Pure chloride of sodium is not liable to deliquesce.

纯净的氯化钠是不易潮解的。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷