查询词典 sulphonic

The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed.

利用二甘醇为原料，以对甲苯磺酸为催化剂合成了 1 ，4 -二氧六环。

NEW STRONTIUM SALTS OF SULPHONIC ACIDS, A PROCESS FOR THEIR

磺酸类的新锶盐，它们的制备方法和包含它们的药物组合物

Universal indicator paper,special indicator paper,ammonium fluoride,ammonium hydrogen difluoride,nbenzyldimethylamine,disinfectant paper,nacetylphenylhydrazine,mcresol purple,bromocresol green,fluorescein,eosin Y,ninhydrin,phenedons,potassium phthalate,pamimobenzene sulphonic acid anhydrous.

广泛试纸，精密试纸，氟化铵，氟化氢铵，N苄基二甲胺，消毒试纸，N乙酰苯肼，间甲酚紫，溴甲酚绿，荧光素，曙红Y，水合茚三酮，菲尼酮S，苯甲酸氢钾，无水对氨基苯磺酸。

By sulphonation of the PS-DES phase with chlorosulphonic acid, strong cation-exchange stationary phase of sulphonic type was obtained.

所产生的PS-DES再和氯磺酸发生磺化反应，即得到磺酸型的强阳离子交换型固定相。

The preparation of esterified derivant : it is prepared by the esterifying reacting of above (3) product and 4g dodecylbenzene sulphonic acid heated in water bath at 40℃ within 30min.

聚环氧氯丙烷乙二醇哌啶接支酯化衍生物的制备：4g十二烷基苯磺酸于40℃水浴条件下聚环氧氯丙烷乙二醇哌啶接支衍生物进行酯化反应。

The composition comprises: 35 to 65 wt % of an anionic detergent or surfactant selected from alkyl benzene sulphonic acids, alpha olefine sulfonates, long chain fatty acid sulphates, higher fatty acids, as well as the alkali metal and alkaline earth metal salts thereof, and natural detersive agents, and mixtures of any of these; 3 to 15 wt % of a non-ionic detergent or surfactant selected from alkoxylated alkyl phenols and alkoxylated fatty alcohols; 5 to 10 wt % of a water-swellable cellulose derivative or a salt thereof, wherein the cellulose derivative exhibits a viscosity of at least about 1500 cps, measured in a 1 % aqueous solution at 25 DEG C with a Brookfield viscometer having spindle 3, speed 30rpm, factor 40 for viscosities of 2500-3500 cps; 6 to 20 wt % of a solubility regulator selected from alkali metal and alkaline earth metal chlorides, carbonates and sulphates, aluminosilicates and starch; and 0 to 20 wt % of a fragrance or perfume in solid, liquid or microencapsulated form.

该组合物包含：a35―65％重量的阴离子洗涤剂，其选自烷基苯磺酸、α－链烯烃磺酸盐、长链脂肪酸硫酸盐、高级脂肪酸以及其碱金属和碱土金属盐和天然的去污剂，和任何这些组分的混合物；b）3―15％重量的非离子洗涤剂，选自烷氧基化烷基酚和烷氧基化脂肪醇；c）5～10％重量的水可溶涨的纤维素衍生物或它们的盐，其中纤维素衍生物按1％水溶液在25℃下用Brookfield粘度计（3号转轴，转速30rpm，2500―3500cps粘度的因子是40测定；具有粘度至少约1500cps；d）6―20%重量的溶解性调节剂，选自碱金属和碱土金属氯化物、碳酸盐和硫酸盐、硅铝酸盐和淀粉；和e）0～20％重量的为固体、液体或微囊包封形式的香精。

P-toluene sulphonic acid catalyst ; ethanediol ; 1; 4-dioxane synthesis

对甲苯磺酸；催化；乙二醇； 1； 4-二氧六环

The result showed that HWG possessed antioxidative characteristics including α,α-diphenyl-β-picryl hydrazyl, 2,2'-azino-bis (3-ethylbenzthiazoline -6-sulphonic acid) and superoxide anion radical-scavenging effects, Fe2+-chelating ability, reducing power and lipid peroxidation inhibition.

随著HWG浓度的增加，其清除自由基包括superoxide anion radical、α，α-diphenyl-β-picryl hydrazyl、2，2'-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid 、还原力与螯合亚铁能力也随之增加，且HWG清除超氧阴离子及螯合亚铁的效力优於标准品Vit C与Trolox。

Property : This product is a polymer composed of carboxyl, sulphonic, phosphonic . There is organophosphate in the chain and side chain, so it is of superior effect of scale-preventative and be of certain corrosion-proof effect.

5.1性能：本品是含有羧基、磺酸基、膦酸基羟基等基团的共聚物，由于它的直链上和部分支链端含有膦基酸，因此本共聚物具有优异的防垢性能，并具有一定的防腐蚀性能。

Both of adsorption of VB〓 on sulphonic resin in Zn〓form from ethanol and caffeine on sulphonic resin in Cu〓 form from ethyl acetate is considerable, with saturation adsorption capacity 60 and 76mg/g respectively.

磺酸锌型树脂对乙醇中VB〓、磺酸铜型树脂对乙酸乙脂中咖啡因和丙烯酸铁型树脂对甲醇中的鞣酸均具较好的吸附性能，其静态饱和吸附量分别为60、76和34mg/g。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。