制酸性的

Silver ink chemistry performance relatively stable, but not acidproof of silver, easy reactions with acid, which causes the imprinting of metal luster, Business card printing and membership card should be used in the process of making neutral auxiliary materials for inking should pay special attention to this point.

银墨化学性能比较稳定，但银墨不耐酸，容易跟酸性物质发生化学反应，从而使印迹的金属光泽性下降，因此，制卡和会员卡制作过程中应采用中性辅助料进行调墨，这一点应当特别注意。

Methods This title compound was prepared using the O-phenylene diamine and the anisaldehyde as the raw material,methanol as the solvent,and the phosphoric acid makes the oxidant.

方法本课题以邻苯二胺和对甲氧基苯甲醛为原料，在甲醇为溶剂，磷酸为催化剂的酸性条件下，一步反应制得2-(4-甲氧基苯基)苯并咪唑。

Owing to phosphorous acid is produced from phosphorus trichloride in industry by hydrolysts, inspissation and crystallization, if we use phosphorus trichloride directly on synthesize N- iminodiacetic acid, not only can simplify operation, but also can red.

原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应，考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得，直接将三氯化磷用于双甘膦的合成，不仅可以简化操作过程，而且对于降低生产成本和能耗有明显意义。

Originally techniques dropped formaldehyde into the mixture of phosphorous acid and monosodium of imino diacetic acid in high temperature. Owing to phosphorous acid is produced from phosphorus trichloride in industry by hydrolysis, inspissation and crystallization, if we use phosphoros trichloride directly on synthesize N- iminodiacetic acid, not only can simplify operation, but also can reduce the cost and save energy.

原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应，考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得，直接将三氯化磷用于双甘膦的合成，不仅可以简化操作过程，而且对于降低生产成本和能耗有明显意义。

Gold nanoparticles had been synthesized under the low-acid or the near neutral condition by chemical reductant in the high concentration of chloroauric acid solution.

在弱酸性或近中性条件下，用化学还原剂还原较高浓度的氯金酸溶液，制得纳米金种子溶液，然后用晶种法制备金溶胶。

Sour mashes are fermented with both fresh and previously fermented yeast; sweet mashes employ only fresh yeast.

酸性糖化醪，是用酵母发酵的，这种酵母包含一部分先前发酵过的酵母；糖化醪则是用鲜酵母制得。

By sulfating synthesized Zr-HMS zeolite, a SO〓/Zr-HMS was prepared. It is proved that it possess superacidity by the experimental results of indicator method, NH〓-TPD, TG and IR.

硫酸化处理后制得SO〓／Zr—HMS，指示剂法测定它的酸强度大于-13.75；NH〓—TPD，TG和IR表征也证明它具有超强酸性。

In this paper, sludge activated carbon was prepared from municipal wastewater treatment plant sludge using chemical activation (the activation reagent was ZnCl2), and the kinetics of adsorption of three dyes (Reactive Brilliant Red K-2BP, Acid Scarlet GR, Direct Violet N) by SAC was studied.

以城市污水处理厂脱水污泥作为原料，采用化学活化法（ZnCl2作为活化剂）制得污泥活性炭，全面研究了污泥活性炭对活性艳红K-2BP、酸性大红GR和直接紫N这3种染料的吸附动力学行为。

A new polyelectrolyte complex was synthesized from quaternary salt of poly(N,N-dimethyamino ethyl methacrylate) and metanil yellow in water.

运用聚甲基丙烯酸二甲胺基乙酯的季胺盐在水溶液中与酸性金黄进行了组装，并制得相应的组装产物。

Sour mash es are fermented with both fresh and previously fermented yeast; sweet mash es employ only fresh yeast.

酸性糖化醪，是用酵母发酵的，这种酵母包含一部分先前发酵过的酵母；糖化醪则是用鲜酵母制得。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。