查询词典 sulfuric acid

As for treatment of waste water from the water scrubbing purification process of the sulfuric acid plant,if lime milk alone is used for neutralization,effluent emission will mostly exceed the standard limit,causing environmental pollution.

硫酸装置水洗净化工艺的污水处理，若单纯用石灰乳中和大都会出现超标排放、污染环境。

Adopting condensation copolymerization between alkylphenol polyoxyethylene ether and methyl aldehyde and using concentrated sulfuric acid sulfonation, which it with sodium hydroxide neutralization, finally acquired sulphonate anionic surfactant, utilize as temperature resistance 、mineral salt tolerance for heavy oil viscosity reducer , research on the performance evaluation, the result indicate, the amount of sulphonate anionic surfactant to be used at 0.2wt%, viscosity reducer rate reached 92.1%; added with 0.5wt%, the calcium and magnesium ions resistance in mineral water up to 800mg/L.

采用辛基酚聚氧乙烯醚和甲醛的共缩聚物与浓硫酸磺化后，再用氢氧化钠中和后得到磺酸盐阴离子表面活性剂作耐温抗矿盐稠油降粘剂，并对其进行性能评价，结果表明，辛基酚聚氧乙烯醚甲醛共缩聚物磺酸盐阴离子表面活性剂加量为0.2wt%时，降粘率高达92.1%，抗钙、镁离子能力达800mg/L。

Unless otherwise specified, if the amount of the residue so obtained exceeds the limit specified in the individual monograph, repeat the moistening with sulfuric acid, heating and igniting as before, using a 30-minute ignition period, until two consecutive weighings of the residue do not differ by more than 0.5mg or until the percentage of residue complies with the limit in the individual monograph.

除非有其他规定，如果这样得到的残渣数量超过具体的各论中指出的限度，重复此前的以硫酸润湿、加热、灼烧等步骤，灼烧30分钟，直到两次连续残渣称量的重量差不超过0.5mg或者直到残渣的百分比符合具体各论中的要求。

The salzburg vitriol preparation, the sulfuric acid four ammonations coppers preparation and the correlation product nature experiment carries on the conformity, constructs the copper element the synthesis experiment system.

将五水硫酸铜的制备、硫酸四氨合铜的制备及相关产物的性质实验进行整合，构建铜元素的综合实验体系。

The salzburg vitriol preparation, the sulfuric acid four ammonations coppers preparation and the correlation product nature experiment carries on the conformity, constructs the copper element the synthesis experiment system.

生活小百科网：将五水硫酸铜的制备、硫酸四氨合铜的制备及相关产物的性质实验进行整合，构建铜元素的综合实验体系。

The invention relates to a preparation method of epsilon-MnO2 layered structure nano-sphere comprising the following steps: adding potassium persulphate, manganese sulphate, ferric nitrate and concentrated sulfuric acid into hydrothermal reactor, charging deionized water and fully stirring, natural cooling the mixture to room temperature after hydrothermal reaction for 1-24 hours at 110-200 DEG C, washing and drying the product to obtain hexagonal crystal epsilon-MnO2 layered structure nano-sphere with a stable structure and uniform grain size.

一种ε-MnO 2 层状结构纳米球的制备方法，将过硫酸钾，硫酸锰，硝酸铁，浓硫酸加入水热反应釜中，加入去离子水充分搅拌后，在110-200℃水热反应1～24h后自然冷却至室温。得到的产物经洗涤干燥即得到结构稳定，粒径均匀的六方晶型的ε-MnO 2 层状结构纳米球。

The sulfur-oxidizing bacteria have a characteristic of oxidating sulfur and sulfide into sulfuric acid.

硫氧化细菌具有氧化单质硫及硫化物，生成硫酸的特性。

Oxidizing feature which is oxidizing leaching of every element, studied kinetics of anode oxidation, analyzed oxidizing slag with XRD and SEM during suspension electrolysis of zinc sulphide mine. The results show that zinc sulphide concentrate in different suspension electrolysis solution can be oxidized. However, the ore in zinc sulphide, ammiaonia sulfate and sulfuric acid suspension electrolysis solution can be oxidized obviously and has better oxidation rate.

确定了硫化锌矿悬浮电解时的电解液后，我们又对硫化锌矿在悬浮电解过程氧化特征即矿物氧化时其中各元素的氧化溶出情况进行分析，对阳极氧化进行了动力学研究，对氧化渣进行XRD和SEM分析，以了解其含锌矿物在悬浮电解过程中的氧化规律，还进行了渣中元素硫的回收。

The amount of sulfuric acid, the ratio of liquid and solid, the microwave radiation time, the pressure, and the power on the yield of reducing sugar were investigated.

实验结果表明，微波辐射条件下，随着硫酸质量分数、固液比、辐射时间、压强、功率的变化，还原糖收率都存在着一个先增加后减少的趋势。

MERCURY STOCK SOLUTION : Transfer 135.4 mg of mercuric chloride to a 100-mL volumetric flask, and dilute with 1 N sulfuric acid to volume.

MERCURY储备溶液：升汞调动135.4毫克到100ml容量瓶， and稀释与1 N硫酸对容量。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失