The proper PH value is 3-4 for poplar dying in the acid solution.
酸性染料染色时，染液的ph值控制在3 -4之间，最利于杨木单板色。
Though it is soluble in the acid solution, it can be degraded and isn't steady.
虽然它能溶于酸溶液中，但会发生降解而不稳定。
Study is made of a new process for directly extraction of the cobalt oxalate from ammonium oxalate in the acid solution directly dissolved from lithium cobaltate.
目的：探讨采用草酸铵作为提取溶剂和超声波振荡处理法提取菠萝皮渣果胶的工艺条件。
In here, in solution you have all these molecules of solvent, molecules of salt, molecules of acid, or whatever, pH that are going to be around to buffer the pH.
在这里，溶液里包含了所有这些溶剂分子，盐分子酸分子和其它东西，可以用来缓冲。
Dissolve a pinch of silver and mercury in a solution of nitric acid, drop in a lump of metal amalgam, and soon a spidery, glittering "Tree of Diana" will form on the glass.
在硝酸中溶解少量银和水银，再扔一小块金属混合物，不久，蛛网一样的闪亮的“戴安娜之树”就会在玻璃上形成。
Specimens prepared by polishing and etching in a weak solution of nitric acid and alcohol reveal the lamellar structure of alternating plates that forms on slow cooling.
通过打磨并在弱硝酸酒精溶液中蚀刻制备的样本显示出由缓慢冷却形成的交互层状的薄片结构。
The article talks about crank crack of shearing machine caused by flakes through testing tower-shaped texture and fracture, dipping in less-acid solution and analyzing its microstructure.
分别进行了塔形发纹检验、显微组织分析、低倍酸浸试验及断口试验分析，确定出该曲轴中的主要缺陷为“白点”。
The resistance to chemical attack of NSAAS cement in acid solution, sulfate solution, sea water was studied.
研究了中性钠盐碱矿渣水泥在酸性溶液、硫酸盐溶液和海水中的抗化学侵蚀性能。
The ferric sulphate solution was used for trickling the acid-cured uranium ore and the residual leaching reaction incomplete in TLL process can be improved in this process.
该法采用硫酸高铁溶液淋滤熟化矿石，完成了薄层浸出法所不能完成的残余浸出反应。
But the phenomenon of degradation of amin solution and equipment corrosion happened during H2S recover for acid waste gas by MDEA, in one plan of our country.
而我国某厂用MDEA从酸性废气中回收h2s的装置却出现了胺液降解及设备腐蚀的现像。
The effects of chloride and boric acid on the epimerization of D-arabinose to D-ribose in aqueous solution using ammonium paramolybdate as catalyst was studied.
研究了在仲钼酸铵催化D-阿拉伯糖差向异构化为D-核糖的水相体系中，氯化物和硼酸助催化剂对反应的影响。
During each acid pickling operation a sample piece of same material shall be kept inside the inhibited acid solution in the tank to check the quality of cleaning.
在每次酸浸操作中，应该将同种材质的试样放置在加入缓蚀剂的溶液内检查清洁程度。
In this paper, the degreasing mechanism in acid solution has been studied in terms of theory and practice. A new technological process of degreasing was proposed.
本文从理论和实践两个方面研究了在酸性溶液中的除油机理，提出了一种新型的除油工艺方法。
Objective:To investigate the value of oral gadopentetic acid dimeglumone salt solution as a negative gastrointestinal contrast agent in 3.0T magnetic resonance cholangiopancreatography.
目的探讨钆喷酸葡胺作为胃肠道阴性对比剂在3.0T磁共振胰胆管成像中的应用价值。
The adsorption properties of niobium oxalate complex in oxalic acid solution with 707 anion exchange resin have been investigated.
研究了707阴离子交换树脂从草酸溶液中吸附铌草酸配合物的特性。
The adsorption properties of niobium oxalate complex in oxalic acid solution with W-305C exchange resin were investigated.
研究了W 305 C离子交换树脂从草酸溶液中吸附铌草酸配合物的性能。
Large amount of acid radical ion of acid salt can coexist or not in the solution depends on whether they have proton transfer reaction.
一般酸式酸根离子在溶液中能否大量共存，主要看它们之间能否发生质子转移反应。
In the solution of 6.6M hydrochloric acid the colour reaction has a high sensitivity and a better stability.
在6.6M酸度条件下，其呈色反应具有较高的灵敏度，稳定性好。
Lower viscosity of the solution was associated with higher concentration and strong of acid in the solvent.
溶液黏度随溶剂中酸浓度增加和酸性增强而下降。
Objective To evaluate uncertainty for concentration of hydrochloric acid standard solution prepared and standardized with the method in Chinese Pharmacopoeia (edition 2005).
目的对按照2005年版《中国药典》方法配制和标定的盐酸标准溶液浓度进行不确定度评定。
The degradation of Fuchsin acid in aqueous solution by contact glow discharge electrolysis is investigated.
研究了接触辉光放电等离子体降解水体中的酸性品红。
By hard anode oxidation, the film is obtained when industrial pure aluminum is in sulfuric acid solution, make the improvement in the traditional sulfuric acid hard anodizing craft foundation.
对工业纯铝在硫酸溶液中采用硬质阳极氧化的方法制取氧化膜的工艺进行了研究，在传统硫酸硬质阳极氧化工艺的基础上进行了改进。
In this paper studying on the polymerization reaction in silicic acid solution is determined and the gel time of poly silicic acid is obtained when acetic acid compound exist.
摘要在前人研究工作的基础上，应用乙酸进行硅酸聚合胶凝的实验研究，实验结果表明，当硅酸溶液中有乙酸化合物时，硅酸聚合胶凝的时间将延长。
The melamine wastewater sample is distillated in the phosphate buffer solution, the emitted ammonia is absorbed, and its content is determined by acid-alkali titration.
在磷酸盐缓冲溶液中加热蒸馏三聚氰胺废水样品，逸出的氨被吸收后通过酸碱滴定测定其含量。
In order to obtain rust, brown, gun-black and ancient green films on brass at room temperature, the chemical coloring process on brass in acid solution was studied.
为了在黄铜基材上室温下获得铁锈色、棕色、枪黑色、仿古绿色膜层，研究了黄铜酸性化学着色工艺。
In order to obtain rust, brown, gun-black and ancient green films on brass at room temperature, the chemical coloring process on brass in acid solution was studied.
为了在黄铜基材上室温下获得铁锈色、棕色、枪黑色、仿古绿色膜层，研究了黄铜酸性化学着色工艺。
应用推荐