[无化] 浓硫酸；************
The preparation of aqua mesophase pitch (AMP) was investigated by oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid.
以*********沥青为原料，以浓硫酸和浓硝酸为氧化剂，可得到易溶于碱性水溶液的水性中间相沥青。
Methods Determined the quality of extract by alcohol and water, polysaccharide, ferulic acid of angelica sinensis by pharmacopoeia method, phenol-concentrated sulfuric acid method and HPLC.
方法采用药典法、 苯酚—浓硫酸法、 高效液相色谱法测定水溶性、 醇溶性浸出物、 多糖、 阿魏酸含量。
The bamboo residues could be liquefied to be biopolyol in the mixed solvent of polyether alcohol and crude glycerol under the catalysis of concentrated sulfuric acid.
在硫酸的催化作用下，竹废料在由聚醚多元醇和粗甘油组成的混合液化剂中可被液化成多羟基化合物。
Compared with conventional concentrated sulfuric acid catalyst, CC-1 featured much higher selectivity and easier operation.
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。
The composition of the catalysis system containing concentrated sulfuric acid and its regeneration method are also investigated.
对浓硫酸催化体系的组成、再生方法也进行了探索。
A biomass hydrolyzing process for producing glucose was investigated, through concentrated sulfuric acid hydrolysis of wood chips.
以木屑为研究对象，进行浓硫酸水解，得到产物单糖。
Bromooctane was synthesized from potassium bromide(by-product of synthesizing 2-hydroxy-4-octyloxybenzophenone) and n-octanol using concentrated sulfuric acid as a catalyst.
以生产2-羟基-4-正辛氧基二苯甲酮的副产物溴化钾和正辛醇为原料，浓硫酸为催化剂，合成了溴代*********。
The mole ratio of octanol, hydrobromide, octanol and concentrated sulfuric acid were observed, as well as the impact of time on reaction rate.
实验重点考察了正辛醇与*********的摩尔比、正辛醇（文章此处略…）与浓硫酸的摩尔、以及时光分辨对反应产率的影响。
A new process has been developed to synthesize dimethoxyacetic acid methyl ester from 50% solution of glyoxylic acid and methyl orthoformate through catalyzing by concentrated sulfuric acid.
以质量分数 50 %乙醛酸水溶液和******************为主要原料 ，经浓硫酸催化 ，合成************乙酸甲酯。
Preparation of methyl acetate from methanol and acetic acid by reactive rectification was investigated with concentrated sulfuric acid as catalyst.
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************的试验。
The reaction of dark blue between concentrated sulfuric acid and chloroform carotenoids could be qualitative analysis for the Rhodotorula glutinis pigment.
利用浓硫酸与类胡萝卜素的氯仿溶液发生深蓝色的反应可进行红酵母色素组分的定性分析。
The synthesis of 6-hydroxyquinoline was improved by reacting of glycerin and p-aminophenol in the presence ofp-nitrophenol, concentrated sulfuric acid, boric acid and ferrous sulfate.
报道了用甘油和*********苯酚在对*********酚、浓硫酸、硼酸和硫酸亚铁作用下一步合成6- 羟基喹啉的合成法。
Two processes with concentrated sulfuric acid recently appeared are reviewed.
对新近出现的两个浓硫酸水解工艺进行述评。
Thermal and thermo-oxidative degradation of chitin with ammonium nitrate, ammonium sulfate and concentrated sulfuric acid were stu***d.
讨论了*********、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。
Chlorotrimethylsilane was prepared, with trimethylsilyl ether and hydrochloride as raw materials, concentrated sulfuric acid as catalyst.
以*********硅醚和*********气体为原料，浓硫酸为催化剂合成了*********氯硅烷。
The results show that the new steel is much better than RS-2 in corrosion resistance to medium temperature concentrated sulfuric acid.
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。
Can not be washed with concentrated sulfuric acid.
不能用浓硫酸洗涤。
Concentrated Sulfuric Acid Cooler; Anodic Protection; Stress Analysis;
浓硫酸冷却器；阳极护卫；应力剖析；
Cyclohexene was synthesized by dehydration of cyclohexanol using zirconium sulfate or potassium hydro- gen sulfate as catalyst instead of concentrated sulfuric acid.
用硫酸锆、*********钾分别代替浓硫酸，催化环己醇脱水合成了*********，主要考察了催化剂用量、分馏反应时间对产物收率的影响。
Active carbon was prepared from rice hull, which was treated with concentrated sulfuric acid.
采用稻壳为原料，使用浓硫酸炭化活化稻壳方法制备稻壳活性炭。
Stress Analysis of a Big-Sized Concentrated Sulfuric Acid Cooler With Anodic Protection;
分析了阳极保护管壳式不锈钢浓硫酸冷却器管程水垢堵塞的原因。
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%.
浓硫酸和*********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%；
Benzyl bromide was synthesized from potassium bromide, a by-product from synthesis of 2-hydroxy-4-n-octyloxybenzophenone(UV-531), and benzoic alcohol in the presence of concentrated sulfuric acid.
溴化钾作为工业生产2-羟基-4-正辛氧基二苯甲酮的副产品，在浓硫酸存在的条件下，与苯甲醇进行反应合成*********。
|oleum/fuming sulfuric acid;[无化]浓硫酸；************
浓硫酸（concentrated sulfuric acid）是硫酸（H₂SO₄）的高浓度溶液，通常指质量分数为98%的液态形式。它是无色、油状、强腐蚀性的化学物质，具有极强的酸性和吸水性，在工业与实验室中应用广泛。
化学性质与特性
浓硫酸的密度约为1.84 g/cm³，沸点高达337°C。其强氧化性体现在高温下可与金属（如铜）反应生成二氧化硫（SO₂），例如：
$$
Cu + 2H₂SO₄ rightarrow CuSO₄ + 2H₂O + SO₂↑
$$
此外，它可作为脱水剂，使有机物碳化，例如使蔗糖脱水生成碳和水蒸气。
主要应用领域
安全与储存
浓硫酸接触皮肤会引起严重灼伤，需佩戴防护装备操作。泄漏时可用沙土吸附后处理，不可直接用水冲洗以避免放热反应。储存需使用耐腐蚀容器，并远离有机物和金属粉末。
参考文献来源：美国化学会（ACS）、PubChem化学品数据库、美国职业安全与健康管理局（OSHA）技术指南。
“concentrated sulfuric acid”指浓硫酸，是一种高浓度、强腐蚀性的无机酸。以下是详细解释：
如需进一步了解具体实验操作或工业流程，可参考化学专业教材或权威数据库（如、6、7的来源）。
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