食品中蛋白质含量测定需采用浓硫酸消化。
Protein in foods is determined after digestion with sulphuric acid.
对新近出现的两个浓硫酸水解工艺进行述评。
Two processes with concentrated sulfuric acid recently appeared are reviewed.
不能用浓硫酸洗涤。
对浓硫酸催化体系的组成、再生方法也进行了探索。
The composition of the catalysis system containing concentrated sulfuric acid and its regeneration method are also investigated.
以木屑为研究对象，进行浓硫酸水解，得到产物单糖。
A biomass hydrolyzing process for producing glucose was investigated, through concentrated sulfuric acid hydrolysis of wood chips.
论述了耐98%浓硫酸的氯磺化聚乙烯胶料配方设计。
Formulation design for CSM compound resistance to 98% of concentrated sulphuric acid has been described in the paper.
当采用釜式间歇甲酯化反应时，浓硫酸为适宜的催化剂。
When a stirred tank batch process is used, the appropriate catalyst is sulphuric acid.
邻苯基苯酚与浓硫酸、甲醛和高铁离子生成红色化合物。
O-Phenylphenol react with sulfuric acid, formaldehyde and ferric iron to form a red colour compound.
把大约5亳升的浓硫酸加进100亳升的水样本中，混匀。
Add 5 ml. concentrated sulphuric acid to 100 ml. water sample and shake well.
分别研究了浓硫酸和钛酸四正丁酯两种催化剂对产率的影响；
The different effect between tetra-n-butyl titanate and sulfuric acid was studied.
将得到的溶液在冰水中冷却，并将130毫升浓硫酸逐滴滴入。
The resulting solution was cooled on an ice bath and 130 ml of concentrated hydrochloric acid was added drop wise.
将得到的溶液在冰水中冷却，并将130毫升浓硫酸逐滴滴入。
The resulting solution was cooled on an ice bath and 130 ml. of concentrated hydrochloric acid was added drop wise.
靛蓝染色纱线被浓硫酸溶解后，对得到的溶液进行分光光度分析。
The indigo dyed fibre or fabric was dissolved with concentrated sulphuric acid. The solution was analyzed spectrophometrically.
介绍了用热的浓硫酸处理废硬质合金，回收金属钴和碳化钨的方法。
This article reports on a method of retrieving cobalt metal and tungsten carbide from hard alloy scrap by the sulphate method.
缺点：不耐冲击，不耐丙酮，不耐浓硫酸或氧化剂，如浓硝酸或含水氯。
Disadvantages: not impact resistance, resistance to acetone, endure not sulfuric acid or oxidant, such as nitric acid or water cut chlorine.
结果表明，新钢种在中温浓硫酸中，具有比RS-2优越得多的耐蚀性能。
The results show that the new steel is much better than RS-2 in corrosion resistance to medium temperature concentrated sulfuric acid.
主要设备，如不锈钢转化器、火管锅炉、主鼓风机、浓硫酸泵等均为国产。
The main equipment such as stainless steel converter, fire tube boiler, main blower and concentrated acid pumps were made at home.
改进老产品的合成工艺，解决使用浓硫酸催化剂合成渗透剂存在的诸多问题。
By improving the synthesis process of the old product, problems associated with synthesizing penetrating agent with sulfuric acid as catalyst were solved.
讨论了硝酸铵、硫酸铵和浓硫酸对自制甲壳素热降解和热氧化降解过程的影响。
Thermal and thermo-oxidative degradation of chitin with ammonium nitrate, ammonium sulfate and concentrated sulfuric acid were studied.
羊毛会受到浓硫酸的侵袭并完全分解。羊毛一般能抵御多数其它不同浓度的无机酸。
Wool is attacked by hot sulphuric acid and decomposes completely. It is generally resistant to most other mineral acids of all strengths.
在中试反应精馏塔中以浓硫酸为催化剂进行了醋酸与甲醇反应制备醋酸甲酯的试验。
Preparation of methyl acetate from methanol and acetic acid by reactive rectification was investigated with concentrated sulfuric acid as catalyst.
对苯二酚和甲醇在浓硫酸和对苯醌催化下，制得4 -甲氧基酚，产率为80 %。
In this work, the 4-methoxyphenol was prepared from hydroquinone, methanol which were catalyzed by benzoquinone and concentrated sulphuric acid. The yield of 4-methoxyphenol was 80%.
与传统的浓硫酸催化剂相比，CC - 1催化剂具有更优异的选择性，操作更简便。
Compared with conventional concentrated sulfuric acid catalyst, CC-1 featured much higher selectivity and easier operation.
硫酸装置酸循环系统的浓硫酸冷却器，国内目前大多采用阳极保护的不锈钢酸冷却器。
At present, most strong sulfuric acid coolers used in the acid circulation system of sulfuric acid plants are stainless steel acid coolers with anode protection in China.
首先，采用苯酚-浓硫酸法对刺人参茎中总多糖含量进行测定，并对其多糖组分进行分析。
First in the work, we mensurated the content of the total sugar in the method of phenol-vitriol, and analysised the constituent of polysaccharide.
可是它能够被浓氧化酸如浓硫酸、浓硝酸所腐蚀而且也不适用与芳香烃、氯化烃触摸的场合。
But it can be strong oxidizing acid such as sulfuric acid, nitric acid corrosion and is not applicable to the occasion of aromatics and chlorinated hydrocarbon touch.
该法来用了冰乙酸作催化剂，在水介质中加入氧化铅，再滴加一定量的浓硫酸来合成硫酸铅。
This method involves using the glacial acetic acid as a catalyst, adding the litharge in aqueous medium and adding a quantity of oil of vitriol to yield lead sulfate.
方法采用超声技术提取该增强剂中的多糖，用苯酚一浓硫酸比色法测定增强剂中多糖的含量。
Methods Ultrasonic technique applied in polysaccharide of the traditional chinese medicine compound immunoenhancer were obtained, content determination with colorimetry.
研究了D,L -丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
Butyl lactate was synthesized by the ester exchange reaction of d, L-lactide and n-butanol under the catalysis of sulfuric acid.
浓硫酸和高氯酸消解后，用钼-锑-钪复合显色剂测定植酸钙中的磷含量，偏差不超过5%；
The phosphorus content of phytin was determined in molybdate-antimony-scandium color agent after it was digested by concentrated sulfuric acid and perchlorate, with its deviation of no over 5%.
应用推荐