Novel controlled releasing polythiourea microcapsules were prepared from terephthaloyl diisothiocyanate and o-phenylenediamine by interfacial polycondensation.

以对苯二甲酰异硫氰酸酯和邻苯二胺为原料通过界面聚法合成了聚硫微胶囊。

Since various, cause has not given a test to maneb zinc supersession thing second braces sulfurs urea (ETU).

由于各种原因未对代森锰锌的代谢物乙撑硫（ETU）进行检测。

Methods A serials of thiosemicarbazones were synthesized by utilizing aromatic aldehyde,aromatic ketone and thiosemicarbazide in aqueous solution under ultrasound irradiation.

目的利用超声技术和水相体系相结合的绿色合成法优化氨基硫的合成条件,扩展超声技术在有机合成中的应用范围。

In copper electrolytic refining,high quality cathode copper can be produced by adding WHN1 together with suitable amount of gelatin and sulfocarbamide.

电解生产时该添加和适当的明胶、硫配合,可获得高品质的。

This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.

本文主要介绍了以30%浓度的双氧水作为氧化剂氧化硫、氨基硫来制备相应的和氨基类化合物。

Under acid condition open chaining crown ether diaromatic aldehyde can react, and they will synthesize a compound of chaining crown ether diaromatic aldehyde thiosemi-carbazone kind.

摘要链状冠醚二芳醛在酸性条件下与氨基硫反应，合成了链状冠醚二芳醛氨硫类化合物。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀光充剂中的巯基杂环化合物和硫衍生物的含量。

Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.

本文对巯基乙酸的合成工艺进行了比较研究,认为硫氢化钠法和硫代硫酸钠法生产成本低,适宜于选矿用巯基乙酸的生产,而硫法可得到较高浓度的巯基乙酸。

S-Methyl-isothiourea sulfate was oxidized by hydrogen peroxide to give methylsulfonyl chloride in 70% yield in aqueous hydrochloric acid solution.The product was characterized by 1HNNR and IR.

在盐酸介质中，利用双氧水氧化S-甲基异硫盐，合成了甲基磺酰氯，收率70％。