查询词典 salt acid

Results of this study indicate that alginate fiber can not resist acid and alkali, both salt endurance and oxidation resistance of alginate fiber are worse; various factors were applied to research the weight-lost of the fiber, such as concentration,temperature and time.

论文摘要：根据印染加工的特点，对海藻酸纤维的耐酸性、耐碱性、耐盐性及抗氧化性进行了初步研究与探讨，为海藻酸纤维在纺织行业的开发与应用提供了理论基础。

An attempt was made to remove color from simulated wastewaters containing Acid Scarlet GR and Reactive violet K-3R by cloud point extraction using a nonionic surfactant of Triton X-114. The influence of the concentrations, equilibrium temperature and equilibrium time on the extraction efficiency was tested. The experimental results show that the extraction efficiency to dye increases with increasing concentration of TX-114 and salt or decreasing initial dye concentration.

本文选用非离子表面活性剂TX-114作浊点萃取剂，研究了由酸性大红与活性紫构成的单元和二元混合染料模拟有色废水的萃取脱色过程，讨论了表面活性剂浓度、染料浓度、盐浓度、平衡温度、平衡时间等因素对萃取效率的影响结果表明，提高表面活性剂浓度、盐浓度有利于提高萃取效率，而染料浓度增加则使萃取效率略有下降。

Bromo-2-sulfolene (2) reacted with substituted benzoic acid salt s 3a～3c or alizarin yellow (3d) to give four novel allylic substitution products 4a～4d by esterification reaction, respectively.

以3，4-二溴环戊砜(1)为原料，在无水吡啶作用下发生消除反应，得到反应中间体4-溴-2-环戊烯砜(2)，再分别与一系列取代苯甲酸盐3a～3c以及茜素黄GG(3d)发生酯化反应，合成出4种新环戊烯砜衍生物4a～4d，并用IR，1HNMR，MS，元素分析等表征了它们的结构。

Its stability was investigated after calcination and after separate treatments in boiling acid, base and different ammonium salt solutions for 6h.

采用三段晶化法合成了MCM-22分子筛，研究了MCM-22分子筛的热稳定性，分别用盐酸、NaOH和铵盐溶液在沸腾条件下处理MCM-22分子筛6h，考察MCM-22分子筛对酸、碱、铵盐的稳定性。

Precipitation Barium sulphate production process is complicated, high cost and contains acid, alkali, salt.

沉淀硫酸钡生产工艺复杂，成本高，而且其中易含有工艺过程中必须使用的，没有去除彻底的，在摩擦材料中起负作用的酸、碱、盐。

Nian 12 25, Hunan Academy of rare earth materials, the implementation of waste lead-acid battery recycling and change the battery lead from the mud in the idea of direct recovery of lead in order to replace pure lead, lead mud, producing red lead, 3 salt and other lead products, after more than t

2007念12 25，湖南稀土材料学院，废铅执行铅酸蓄电池回收和变化，从在直接回收铅蓄电池铅泥理念，以取代纯铅，铅泥，生产红丹，三盐和其他主要产品，经过十吨。。08.3.10

The PVA without limiting the blood flow volume can increase the cross section and blood flow volume of portal vein ,dilate and thicken the branches of portal vein, but the function of reticuloendothelial system, metabolism of bile pigment and bile acid salt don′t undergo significant influences.

未采取限流措施的门静脉动脉化可导致门静脉横截面积和血流量增加，门静脉分支扩张、管壁增厚，但网状内皮系统的吞噬功能以及胆色素和胆盐的代谢未受显著的影响。

The preparation of sodium salt of phytic acid degrease Rice bran dip - dye steep liquor with the method of absorption of ion exchange resin is studied.

开发了用离子交换树脂吸附法以脱脂米糠浸泡液为原料生产植酸钠的新工艺，采用正交设计及极差分析法确定了最佳工艺条件，植酸的平均收率达到96％以上。

The SinoChrom ODS-BP column(4.6mm×200mm i.d 5um) was used with the mobile phase of phospioricacid salt buffer solution.The recovery of benzoic acid was 93.2%.

此种方法用醋酸锌和亚铁氰化钾溶液作为沉淀剂，以磷酸盐缓冲溶液作为流动相，用SinoChrom ODS-BP柱（4.6mm×200mm i.d 5um）液相色谱柱分离，用伊利特UV-230+紫外可见检测器进行检测。

The examination made known, when consistence of acetic acid glacial at the 2%, dairy salt concentration 8%~12%, the best way was to be elected.

研究了采用冰乙酸和食盐的混合液作为汤汁的香菇酸盐渍生产工艺、产品检验等，研究表明，冰乙酸浓度2%、食盐浓度8%~12%是香菇酸盐渍的最佳生产工艺条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。