peroxydisulfuric acid

In light of the principle of vanadium's valent state change,after samples are dissolved by weak nitric acid,in medium of around 15% nitric acid,the oxidant ammonium persulphate is immediately used to selectively oxidize V~(4+) to V~(5+).利用钒的价态变化原理,试样以稀硝酸溶解后,在15%左右的硝酸介质中,直接用氧化剂过硫酸铵选择性地氧化V~(4+)为V~(5+)。U4J汉语字典

With industrial monomer solution of dimethyldiallylammonium chloride(DMDAAC) as raw material,ammonium persulphate(APS) as initiator and Na_4EDTA as chelating agent,using the methods of adding initiator all at once,graduated increasing of temperature and stepwise initiation and polymerization,the polymerization process of preparing poly-dimethyldiallylammonium chloride(PDMDAAC) was researched.以一步法工业单体二甲基二烯丙基氯化铵(DMDAAC)为原料,以过硫酸铵(APS)为引发剂,采用一次性加入引发剂,梯度升温,分步引发水溶液聚合反应的方法,对制备聚二甲基二烯丙基氯化铵(PDMDAAC)的聚合反应的工艺进行了优化研究。U4J汉语字典

Poly-dimethyldiallylammonium chloride(PDMDAAC)was prepared by using industrial dimethyldiallylammonium chloride(DMDAAC)aqueous solution with known impurities as starting material,ammonium persulphate(APS)as initiator,without addition of any transferring and terminating agents.以过硫酸铵(APS)为引发剂,以已知杂质含量的工业一步法合成的二甲基二烯丙基氯化铵单体溶液为原料,采用水溶液聚合法,无需使用链转移剂和链终止剂,通过控制单体的起始含量(w(DMDAAC)=35。U4J汉语字典

Determination of Ketoprofen Using Its Adsorbed Association/Parallel Polarographic Catalytic Wave in the Presence of Persulfate;过硫酸钾存在下吸附缔合/平行催化波法测定酮洛芬U4J汉语字典

The polymerization of AM initiated by the MAAECz and potassium persulfate was studied kinetically.合成了可聚合芳香叔胺 - 3 甲基丙烯酰胺基 9 乙基咔唑 ,并与过硫酸钾组成氧化还原引发体系引发丙烯酰胺水溶液聚合 ,测定了聚合反应动力学 ,得到了超高分子量的聚丙烯酰胺。U4J汉语字典

Catalytic spectrophotometric determination of trace nickelⅡ in water based on discoloring reaction of congo red by oxidation of potassium persulfate;过硫酸钾氧化刚果红褪色催化光度法测定水中微量镍U4J汉语字典

Factor Affecting the Determination of Water Quality Total Nitrogen by Alkaline Potassium Persulfate Digestion;碱性过硫酸钾法测定水质总氮的影响因素U4J汉语字典

Hg oxidative absorption in potassium persulfate solution catalyzed by Cu~ 2+;Cu~(2+)催化过硫酸钾氧化吸收气态汞U4J汉语字典

Desizing process of cotton fabric by ammonium persulfate-sodium bisulfite system;棉织物的过硫酸铵-亚硫酸氢钠退浆系统U4J汉语字典

This paper reviewed the production status of the ammonium persulfate producing by electrobath inside,analyzed the development current of its electrobath.本文介绍了国内过硫酸盐的发展现状,并对电解法制备过硫酸铵用电解槽的发展方向做了研究探讨。U4J汉语字典

Using ammonium persulfate(APS) as initiator, the graft copolymer of methyl acrylate with carboxymethyl chitin was prepared and the effects of reaction conditions on graft copolymerization were studied.以过硫酸铵为引发剂,制备了羧甲基甲壳素接枝丙烯酸甲酯共聚物,讨论了反应条件对接枝率和接枝效率的影响。U4J汉语字典

The text introduced many reconstructions of pump which should be attended in the persulfate production,by this way the problems maked by unperfectly using or building up were solved.本文介绍了过硫酸盐生产用泵的一系列改造,解决工艺流程的泵安装使用中的一系列不正确的问题。U4J汉语字典

Graft copolymerization of ammonium acrylate onto cotton fibers was studied with persulfate and sodium hyposulfite as initiator.以过硫酸盐与硫代硫酸钠为引发剂 ,使丙烯酰胺与棉纤维进行接枝共聚 ,研究了过硫酸盐的加入方式和加入量对接枝反应的影响 ,发现采用过硫酸铵与过硫酸钾两种氧化剂、两步加入的办法能够克服体系中氧气的阻聚作用 ,又能得到较高的单体转化率和接枝U4J汉语字典

The composition ratio of the complex gel breaking system of DF-07 low fracturing fluids consisting of persulfate and the initiator is studied.针对低温地层压裂改造液体破胶难度大、储层伤害率高等问题,分析了不同类型破胶剂的破胶机理,研究了由过硫酸盐和引发剂组成的DF-07低温压裂液复合破胶体系的组分比例,评价了不同使用条件下对压裂液携砂粘度和破胶性能的影响程度以及降低残渣含量与保护地层能力,并在永利地区低温储层现场进行了2井次压裂施工应用。U4J汉语字典

Chemical reagent-Potassium peroxydisulfateGB/T641-1994化学试剂过二硫酸钾(过硫酸钾)U4J汉语字典

Study on Microetching Performance of Sodium Persulfate/Sulfuric Acid System过硫酸盐/硫酸体系微蚀性能的研究U4J汉语字典

Oxidation of lead acetate by ammonium persulfate用过硫酸铵对醋酸铅进行氧化U4J汉语字典

Chemical reagent-Ammonium persulfateGB/T655-1994化学试剂过硫酸铵U4J汉语字典

Determination of Total Phosphorus in Water by Potassium Persulfate-Microwave-Digestion method;过硫酸钾—微波消解法测定水中总磷U4J汉语字典

Grafting Copolymerization of Caprolactam onto Wheat Straw Pulp Initiated by Potassium Persulfate-Sodium Bisulfite过硫酸钾-亚硫酸氢钠引发麦草浆纤维与己内酰胺接枝共聚改性U4J汉语字典

Study of methodology comparision on determination of urine iodine with perchloric acid digestion and ammonium persulfate digestion过硫酸铵消化法与氯酸消化法测定尿碘的比较U4J汉语字典

Basic potassium persulfate-ortho-hydroxybenzoic acid method determination of total nitrogen in dewatering sludge碱性过硫酸钾—水杨酸法测定脱水污泥总氮U4J汉语字典

treated or impregnated with sulfur.被硫酸处理过，或使充满硫酸。U4J汉语字典

Oxidative Desulphurization in Hydrogen Peroxide/Formic Acid/Sulfuric Acid System过氧化氢/甲酸/硫酸体系氧化脱硫研究U4J汉语字典

Study on Sulfurou Acid Calcium Oxidated in the Wet Limestone-gypsum Flue Gas Desulfurization Process;湿法烟气脱硫过程亚硫酸钙氧化研究U4J汉语字典

Peracetic Acid Bleaching of Magnesium-based Sulfite Pulp亚硫酸镁盐法浆过氧乙酸漂白的研究U4J汉语字典

Application of purified waste water from sulfuric acid in phosphoric acid filter硫酸净化污水在磷酸过滤机上的应用U4J汉语字典

Thermodynamics and dynamics in Reaction of Ammonium Peroxodisulfate and Sodium Thiosulphate;过二硫酸铵与硫代硫酸钠反应的热力学和动力学U4J汉语字典

bisulfate, bisulphate硫酸氢盐,酸式硫酸盐U4J汉语字典

sulphuric anhydride三氧化硫, 硫(酸)酐U4J汉语字典

method using oxidative digestion with peroxodisulfate用过氧焦硫酸盐进行氧化溶解的方法U4J汉语字典

Study on Condition of Mn~(2+) Oxided by Potassium Persulfate;过二硫酸钾氧化Mn~(2+)的条件探索U4J汉语字典