查询词典 sulfuric acid

The characteristics of sulfuric acid dew point environment are briefly introduced, and the mechanism of effect...

介绍了硫酸露点腐蚀环境的特点并讨论了合金元素对该低合金钢耐硫酸露点腐蚀的作用机制和国内外现有主要低合金耐硫酸露点钢的化学成分、力学性能和耐蚀性能。

So for the material resistance to corrosion by sulfuric acid dew point is very important to study the theoretical significance of the actual value, its future development prospects will very broad.

因此对于金属材料抗硫酸露点腐蚀的研究有着非常重要的理论意义各实际应用价值，其未来的发展前景必然十分的广阔。

Effect of magnetic field on open circuit corrosion and polarization resistance for iron in sulfuric acid containing dichromate .

含重铬酸根硫酸溶液中磁场对铁自腐蚀状态及极化电阻的影响。

Catalysis of sulfuric acid has been investigated in the preparation of dibromoalkane by epoxy compound and aliphatic diol .

结果表明：浓硫酸的用量对环氧化合物以及脂肪二元醇合成二溴代烷的收率有很大的影响

ADPODS posses stable Surface chemical properties when dissolved in 10% sulfuric acid, 10% sodium hydroxide or 10% sodium chloride aqueous solutions. ADPODS s emulsifiability and detergency at 650mg/L water hardness are very good.4 The micellar aggregation number of C16-MADS was determined by molecule fluorescence probe method.

采用分子荧光探针法测定了C_(12)-MADS与C_(16)-MADS的胶团聚集数，在一定的表面活性剂溶液浓度1.25×10~(-2～1.10×10~(-1)mol·L~(-1)范围内，N_m随浓度的增大而线性增大；体系温度和NaCl浓度对N_m的影响极小；胶团内核的微极性明显大于传统阴离子表面活性剂。

The method is realized by that polyether ether ketone is added into concentrated sulfuric acid to carry out sulfonation reaction, thereby obtaining sulfonated polyether ether ketone, then the sulfonated polyether ether ketone is dissolved in organic solvent, N, N (1)-Carbonyldiimidazole is added to stir for one to three hours, coupling agent is mixed for stirring the reaction for 1.5 to 4 hours, then inorganic crosslinking agent is mixed to react under the temperature of 50 to 80 DEG C. Proton conductors are mixed to continue getting the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors under the temperature. Finally the proton exchange membrane for a direct methanol fuel cell is obtained by that the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors is/are processed through membrane forming, drying and exuviation.

该方法首先将聚醚醚酮加入浓硫酸中进行磺化反应得到磺化聚醚醚酮；然后将磺化聚醚醚酮溶于有机溶剂中，加入N，N′-羰基二咪唑搅拌1～3小时后加入偶联剂搅拌反应1.5～4小时，再加入无机交联剂在50～80℃下反应，然后加入质子导体继续在此温度下反应得到磺化聚醚醚酮/无机交联剂/质子导体的混合溶液；最后将磺化聚醚醚酮/无机交联剂/质子导体的混合物溶液成膜，干燥，脱膜即得到所述的直接甲醇燃料电池用质子交换膜。

Firstly, the process of magnesium sulfate from the sulfuric acid leaching filtrate of serpentine is described.

研究了制备条件对镁盐晶须产品的结构和性质的影响。

Monoammonium phosphate,diammonium phosphate,compound fertilizer,superphosphate,sulfuric acid,ammonium sulfate,sodium sulfate,sodium fluosilicate and so on.

磷酸一铵，磷酸二铵，复混肥料，过磷酸钙，硫酸，硫酸铵，硫酸钠，氟硅酸钠等。

The organisms in the mine drainage, which lie in a pink slick on pools of acidic green water, obtain energy by oxidizing iron - that is, generating rust -- and in the process create sulfuric acid and dissole pyrite (iron sulfide or fool's gold) to release more iron and sulfur.

在铁矿排水的地方，这些微生物靠氧化铁离子来获得能量，在这过程中产生更多的硫酸融解黄铁矿，于是产生更多的离子和硫化物，造成水源污染，作者试验的地点中微生物造成了很大污染。

This experiment, the extract from fresh seaweed polysaccharide formulation flooding thermal pre-treatment of water and alcohol kelp, iodine after extraction of the waste material to fucose sulfate polysaccharide extraction, and anthrone-sulfuric acid method with its total glucose.

本实验，采用从鲜海带中提取多糖的热水浸提法对海带预处理水和醇、碘提取后的废弃料进行岩藻多糖硫酸酯的提取，并用硫酸蒽酮法测定其总含糖量。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。