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1)  medium of thiourea
硫脲介质
1.
Determination of silver in ore by atomic adsorption spectrometry (AAS) in the medium of thiourea after closed dissolution of sample;
封闭溶样—硫脲介质原子吸收法测定矿石中的银
2)  Thiourea-perchloric acid medium
高氯酸-硫脲介质
3)  sulfuric acid
硫酸介质
1.
The mechanism and characteristics about synergistic extraction of Nd3+ and Sm3+ by D2EHPA and HEHEHP from sulfuric acid medium were studied through the methods of slope,constant molecule and saturation extraction.
采用恒摩尔法、斜率法以及饱和容量法研究从硫酸介质中用P204(D2EHPA,用(HA)2表示)与P507(HEHEHP,用(HL)2表示)协同萃取Nd3+或Sm3+的性能与机理,并测定协萃反应的热力学平衡常数Ks。
2.
The extraction of Y3+ in sulfuric acid medium by mixture of HDEHP(di(2-ethylhexyl) phosphoric acid or P204),HEH/EHP(2-(ethylhexy1) phosphoric acid mono-2-ethylhexyl ester or P507) has been investigated.
对HDEHP(二(2-乙基己基)磷酸或P204)和HEH/EHP(2-乙基己基膦酸单-2-乙基己基酯或P507)在硫酸介质中协同萃取Y3+的行为进行了研究。
4)  sulfuric acid medium
硫酸介质
1.
The extraction and separation of Nd and Sm from sulfuric acid medium with mixed extraction of D2EHPA and HEHEHP were researched.
对P204与P507混合萃取剂在硫酸介质中萃取分离Nd和Sm的行为进行了研究。
2.
The extraction of Y(Ⅲ) in sulfuric acid medium using HDEHP(H2A2),HEH/EHP(H2B2),Cyanex272(H2L2) and their mixture have been investigated.
对HDEHP(H2A2),HEH/EHP(H2B2),Cyanex272(H2L2)萃取剂在硫酸介质中单独以及HDEHP-HEH/EHP和HDEHP-Cyanex272混合萃取剂萃取稀土元素Y(Ⅲ)的机制进行了研究。
5)  sulfur-bearing solution
含硫介质
6)  vulcanization medium
硫化介质
1.
The features and applications of vulcanization medium such as superheat water,high pressure steam and steam/nitrogen about tire were analysed respectively and the difference of various vulcanization media was compared.
通过查阅国内外有关轮胎硫化方面的文献 ,就过热水硫化、蒸汽硫化和蒸汽 /氮气硫化介质的现状及其在实际应用中的情况进行了分析 ,并比较了各种硫化介质的优劣之
补充资料:N,N'-对称二苯基硫脲二苯基硫脲
CAS:102-08-9
分子式:C13H12N2S
分子质量:228.31
熔点:151-154℃

中文名称:N,N'-对称二苯基硫脲二苯基硫脲;N,N'-二苯基硫脲;二苯硫脲;N,N-二苯基硫脲;均二苯硫脲;促进剂CA;二苯胺基甲硫酮

英文名称:N,N'-sym-Diphenyl thiourea;Diphenyl thiourea;N,N'-diphenyl-Thiourea;thio-carbanilid;1,3-difenylthiomocovina;1,3-diphenyl-2-thiourea;1,3-diphenylthiourea;2-fenylotiomocznik;dft;diphenylthiourea;n,n'-diphenylthiocarbamide;n,n'-diphenylthiourea

性状描述:白色有光泽的片状结晶。熔点154-155℃,相对密度1.32,溶于四氢呋喃、环己酮、丙酮、醇、乙醚,微溶于聚氯乙烯用的各种增塑剂,不溶于水和二硫化碳。易燃,味苦,磨擦时发光。

生产方法:由苯胺与二硫化碳缩合而得。公斤/吨苯胺 900二硫化碳 420

用途:本品为硫化速度较快的促进剂,主要用于天然胶乳和氯丁胶乳制品,亦可用于制造硫化胶囊、水胎、补胎胶、电线电缆、工业制品、胶鞋等。本品也可作为乳液法聚氯乙烯的热稳定剂,特别适用于软质制品,一般用量为0.2-0.5%,不会使塑料制品着色,但不能防止制品受光变色。不能与铅、镉稳定剂并用,否则会导致制品变色。

二苯硫脲也是医药、染料的中间体,用于生产靛蓝、甲基靛蓝、硫化染料及浮选剂、防酸剂等。本品是测定锇、钌的化学试剂。

本品毒性低,小鼠腹腔注射LD50为400毫克/公斤,大鼠口服LD50为2000毫克/公斤,无致癌性。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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