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硫酸化

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To dye the different types of fibers by the same dye, universal dyes based on naphthalene ring system are prepared by the diazo coupling reaction of 7-acetamide-4-hydroxy-2-oaphtialene-β-(N,N-dimethylaminoethyl)solfonamide and m-aminobenzene-β-hydroxyethyl sulfone sulfunate.

为了实现用同一支染料对不同类型的纤维进行染色的目的,通过间氨基苯基-β-羟乙基砜硫酸酯与7-乙酰氨基-4-羟基-2-萘-β磺酰胺的重氮化偶合反应合成了含萘环的通用染料,其结构通过质谱分析进行了表征。

Methods: Fat extracted from food and oil sample was determined directly on the ZnSe crystal cisterna of horizon attenuation total reflection equipment with deuterated triglycine sulfate detector in the FT-IR.

食品中提取的脂肪或油脂样品直接置于红外光谱仪的水平衰减全反射部件的槽式ZnSe晶体上,氘化三甘氨酸硫酸酯检测器检测。

The synthetic process for a new plasticizer used in low temperature, dibutyl nylonic acid ester, was introduced.

介绍了一种新型耐寒增塑剂尼龙酸二正丁酯的合成工艺,用价廉、易得的尼龙酸(由制己二酸母液中获得的C4~C6混合二元酸)及正丁醇为原料,浓硫酸为催化剂,经酯化、脱醇、中和、沉降及减压蒸馏等工序而制得产品。

The product has green-yellow fluorescence at excitation wavelength of 355 nm and emission wavelength of 478 nm, and the fluorescence intensity could be enhanced in the presence of acetone.

三、流动注射在线氧化荧光法测定氯普噻吨的的研究利用在硫酸介质中二氧化铅可使无天然荧光的氯普噻吨氧化而转变为在最大激发波长和最大发射波长分别为393nm和452nm的强荧光物质,而且丙酮对该荧光体系有强烈增敏作用的现象,建立了以醋酸纤维素固定化的二氧化铅作为固相反应器的流动注射在线氧化荧光法测定氯普噻吨的新方法。

In modern chemical engineering, inorganic acids and metal haloids are wildly used as catalysts in esterification, such as sulfuric acid, phosphoric acid and AlCh, SnCU, TiCU.

目前,在工业化生产中,对于酯化反应多采用浓硫酸、磷酸等无机酸或金属卤化物,如AlCl_3、SnCl_4、TiCl_4等作为催化剂。

In order to understand the lead and mercury content in Baby, sedative Chinese herb drugs, 179 preparations and 52 herbs of Chinese drugs were analyzed. Samples were prepared by Ash determination in lead and sulfuric acid-nitirc acid digestion in mercury, then determined by AAS.

将市售小儿惊风散类制剂179件及其药材52种,分别以灰化法及硫酸硝酸法处理后,利用原子吸光光度法(Atomic Absorption Spectrometry;AAS)测定铅及汞之含量。

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。

Technology of sulfuric acid catalyzed ethyl esterification of high acid value tuna oil was studied.

以浓硫酸为催化剂,对高酸值金枪鱼油进行了乙醇酯化工艺的研究。

Technical parameters application * egg and milk products including rich fat milk powder,cocoa milk powder, milk powder,eggwhiteetc.* food and plant juice including oats,chickenjuice,coffee,speedy dissolving tea,flavorign,protein,bean,peanut protein,protein solution etc.* sugar series including corn syrup,com starch,amylaceum,pectin barley sugear,pltassium sorbate etc.* pharmaceutical products including chinese medicine extract,pharmiglucin,vitamin,antibiltie,amylase,lipase,protease etc.* plastic resins including ab,abs emulsion,pollopas,phenolic resin,,melamac,polyethylene,pvc etc.* detergents including normal,high grade washing powder,soap power,soda ash,emulsifier,brightener,phlphoric agent etc.* chemical products including sodiumfluoride,basis dye/colour,dye intermediate,compoumd fertilizer,catalyzer,sulphuric agent,amino acid and white carbon etc.* ceramics including aluminum oxide,ceramic tile material,magnesium oxide,speckstone etc.* others including aluminum hydroside,calcium chloride,staric acid agent etc.

料液桶d皿mof,awmatehalliquid 应用食品工业蛋奶制品富脂奶粉、胳肮,可可奶粉、代乳粉、蛋清等食物及植物汁燕麦鸡汁,咖啡,速溶茶,调味香料肉,蛋白质,大豆,花生蛋白质、蛋白质水解物等糖类玉米浆、玉米淀粉,葡萄糖,果胶、麦牙糖,山梨酸钾等化学工业氟化钠、碱性染料颜料、染料中间体、复合肥、甲茎硅酸、催化剂、硫酸剂、氨基酸、白碳黑等医药用品中药浸膏、药胶、酵母、维生素、抗生素、淀粉酶、脂肪酶、蛋白酶等塑料树脂 ab、abs乳液、尿醛树脂、酚醛树脂、密胶甲醛树脂、聚乙烯、聚氯乙烯等洗涤剂高级洗衣粉,普通洗衣粉、肥皂粉、苏打粉、乳化剂、增白剂、磷酸剂等陶瓷氧化铝、态砖材料、氧化镁、滑石等其它氢氧化铝、氯化钙、硬脂酸剂等冷却喷雾技术参数

In the recovery process of electroplating sludge, it researched on acid leaching process, N902—sulfonated kerosene extraction of copper, and copper sulfate stripping and the recovery.

对电镀污泥中铜的回收工艺进行研究,研究了酸浸过程、N902—磺化煤油萃取铜、硫酸反萃以及铜的回收。

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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。