[無化] 濃硫酸；************
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*********瀝青為原料，以濃硫酸和濃硝酸為氧化劑，可得到易溶于堿性水溶液的水性中間相瀝青。
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.
方法采用藥典法、 苯酚—濃硫酸法、 高效液相色譜法測定水溶性、 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，竹廢料在由聚醚多元醇和粗甘油組成的混合液化劑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.
與傳統的濃硫酸催化劑相比，CC-1催化劑具有更優異的選擇性，操作更簡便。
The composition of the catalysis system containing concentrated sulfuric acid and its regeneration method are also investigated.
對濃硫酸催化體系的組成、再生方法也進行了探索。
A biomass hydrolyzing process for producing glucose was investigated, through concentrated sulfuric acid hydrolysis of wood chips.
以木屑為研究對象，進行濃硫酸水解，得到産物單糖。
Bromooctane was synthesized from potassium bromide(by-product of synthesizing 2-hydroxy-4-octyloxybenzophenone) and n-octanol using concentrated sulfuric acid as a catalyst.
以生産2-羟基-4-正辛氧基二苯甲酮的副産物溴化鉀和正辛醇為原料，濃硫酸為催化劑，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.
實驗重點考察了正辛醇與*********的摩爾比、正辛醇（文章此處略…）與濃硫酸的摩爾、以及時光分辨對反應産率的影響。
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.
以質量分數 50 %乙醛酸水溶液和******************為主要原料 ，經濃硫酸催化 ，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.
在中試反應精餾塔中以濃硫酸為催化劑進行了醋酸與甲醇反應制備************的試驗。
The reaction of dark blue between concentrated sulfuric acid and chloroform carotenoids could be qualitative analysis for the Rhodotorula glutinis pigment.
利用濃硫酸與類胡蘿蔔素的氯仿溶液發生深藍色的反應可進行紅酵母色素組分的定性分析。
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.
報道了用甘油和*********苯酚在對*********酚、濃硫酸、硼酸和硫酸亞鐵作用下一步合成6- 羟基喹啉的合成法。
Two processes with concentrated sulfuric acid recently appeared are reviewed.
對新近出現的兩個濃硫酸水解工藝進行述評。
Thermal and thermo-oxidative degradation of chitin with ammonium nitrate, ammonium sulfate and concentrated sulfuric acid were stu***d.
讨論了*********、硫酸铵和濃硫酸對自制甲殼素熱降解和熱氧化降解過程的影響。
Chlorotrimethylsilane was prepared, with trimethylsilyl ether and hydrochloride as raw materials, concentrated sulfuric acid as catalyst.
以*********矽醚和*********氣體為原料，濃硫酸為催化劑合成了*********氯矽烷。
The results show that the new steel is much better than RS-2 in corrosion resistance to medium temperature concentrated sulfuric acid.
結果表明，新鋼種在中溫濃硫酸中，具有比RS-2優越得多的耐蝕性能。
Can not be washed with concentrated sulfuric acid.
不能用濃硫酸洗滌。
Concentrated Sulfuric Acid Cooler; Anodic Protection; Stress Analysis;
濃硫酸冷卻器；陽極護衛；應力剖析；
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、*********鉀分别代替濃硫酸，催化環己醇脫水合成了*********，主要考察了催化劑用量、分餾反應時間對産物收率的影響。
Active carbon was prepared from rice hull, which was treated with concentrated sulfuric acid.
采用稻殼為原料，使用濃硫酸炭化活化稻殼方法制備稻殼活性炭。
Stress Analysis of a Big-Sized Concentrated Sulfuric Acid Cooler With Anodic Protection;
分析了陽極保護管殼式不鏽鋼濃硫酸冷卻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%.
濃硫酸和*********消解後，用钼-銻-钪複合顯色劑測定植酸鈣中的磷含量，偏差不超過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.
溴化鉀作為工業生産2-羟基-4-正辛氧基二苯甲酮的副産品，在濃硫酸存在的條件下，與苯甲醇進行反應合成*********。
|oleum/fuming sulfuric acid;[無化]濃硫酸；************
濃硫酸（concentrated sulfuric acid）是硫酸（H₂SO₄）的高濃度溶液，通常指質量分數為98%的液态形式。它是無色、油狀、強腐蝕性的化學物質，具有極強的酸性和吸水性，在工業與實驗室中應用廣泛。
化學性質與特性
濃硫酸的密度約為1.84 g/cm³，沸點高達337°C。其強氧化性體現在高溫下可與金屬（如銅）反應生成二氧化硫（SO₂），例如：
$$
Cu + 2H₂SO₄ rightarrow CuSO₄ + 2H₂O + SO₂↑
$$
此外，它可作為脫水劑，使有機物碳化，例如使蔗糖脫水生成碳和水蒸氣。
主要應用領域
安全與儲存
濃硫酸接觸皮膚會引起嚴重灼傷，需佩戴防護裝備操作。洩漏時可用沙土吸附後處理，不可直接用水沖洗以避免放熱反應。儲存需使用耐腐蝕容器，并遠離有機物和金屬粉末。
參考文獻來源：美國化學會（ACS）、PubChem化學品數據庫、美國職業安全與健康管理局（OSHA）技術指南。
“concentrated sulfuric acid”指濃硫酸，是一種高濃度、強腐蝕性的無機酸。以下是詳細解釋：
如需進一步了解具體實驗操作或工業流程，可參考化學專業教材或權威數據庫（如、6、7的來源）。
【别人正在浏覽】