阴离子

Experimental research for wastewater processing has been carried out on the activated dye wastewater from cotton-printing and dyeing by using a chemical coagulation method with MgSO4 as coagulation agent and anion polyacrylamide as coagulant aid.

采用化学混凝法，以MgSO4为混凝剂、阴离子聚丙烯酰胺为助凝剂，分别对棉布印染过程中排放的活性染料废水进行实验研究。

The occurration of milk fever and application of anion salt in dairy cow

试验通过在奶牛围产前期日粮中以-560g/kg的标准添加阴离子盐，以观察DCAD的饲喂效果。

The complexes have been characterized by IR spectrum , UV spectrum and X-ray diffraction.

铜的氨基酸配合物具有催化超氧阴离子自由基O_2~

The synthetic technique of anionic surfactant sodium dodecyl diphenyl ether disulfonate was studied.The best reaction conditions were determined.Alkylation was carried out with n∶ n=5∶1 at 70 ℃ for 5 h to attain 82% yield.

研究了十二烷基二苯醚二磺酸钠阴离子表面活性剂的合成工艺，得出烷基化的最佳反应条件为：催化剂用量为n∶n =5∶1；反应时间 5h ；反应温度 70℃；二苯醚的转化率 82 %。

Alkyl diphenyl ether disulfonate is a serie of anionic surfactants with many functions. It has two hydrophilic head groups and different from conventional surfactants.

烷基二苯醚二磺酸钠是一类在结构和性能上有别于传统表面活性剂的多功能性双亲水基型阴离子表面活性剂，具有卓越的表面化学性能及应用性能。

Alkyl diphenyl ether sodium disulfonateis a kind of multifunctional anionic surfactants with double hydrophilic groups.

烷基二苯醚双磺酸钠是一类当前备受瞩目的新型多功能双亲水基型阴离子表面活性剂。

The effects of factors such as the initial dye concentration, the H2O2 concentration, the pH value and different inorganic anions on the effectiveness of decoloration of direct sky blue were studied.

研究染料初始浓度、H2O2、pH值、不同阴离子等因素对直接湖蓝染料的脱色效果影响。

The paper compares four types of dyes using in China,they are basic dyes,alkali basic dyes,modified specific dyes and anionic direct dye s base in their performance and cost.

对基本染料、碱性基本染料、改进型专用染料和阴离子直接染料等国内市场常用的 4种染料的性能和成本进行了分析，并提出使用直接染料将是牛皮箱纸板染色的发展趋势。

A method of dyeing a polyamide fiber structure characterized by using a polyamide fiber structure which has structural differences along the fiber length direction and dyeing the structure with an anionic reactive dye in a dye bath having a pH of 3 to 8; and a dyed polyamide fiber structure obtained by the above method.

本发明的聚酰胺类纤维构成物的染色方法，是以用纤维纵向上有结构差别的聚酰胺类纤维构成物，经将pH调至3～8的含阴离子性反应性染料的染液染色为特征的，本发明的染色物是由该染色方法制得的聚酰胺类纤维的染色物。

Hydrophobically modified anion polyelectrolytes based on Fenugreek gumwere prepared by fixation of dodecyl or cetyl chains onto carboxymethyl Fenugreek gum backbone via ester functions.

将十二烷基与十六烷基以酯键方式分别引入经羧甲基化改性的香豆胶大分子骨架上，制备了基于香豆胶的疏水改性阴离子聚电解质衍生物。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。