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  • 二硫代乙酰胺

    ethanedithioamide

化合物简介

Dithiooxamide, also known as rubeanic acid is an organic compound. It is the sulfur analog of oxamide. It acts as a chelating agent, e.g. in the detection or determination of copper. It has also been used as a building block in the synthesis of cyclen.

基本信息

CAS:79-40-3
中文别名:红氨酸;二硫代草酰胺;二硫代草酰氨;二硫代乙二酰二胺;二硫代乙二酰胺;
英文别名:Ethanedithioamide;Oxamide,dithio;Dithioxamide;ethanebis(thioamide);hydrorubeanic acid;Rubeane;Rubeanic acid;dithiooxalyldiamide;Rubean;dithiooxamide;
分子式:C2H4N2S2
分子量:120.197
精确质量:119.982
Psa:116.22
Logp:0.9592

编号系统

UNII:HE28T8Z08D

物化性质

外观与性状:橙色至棕色结晶粉末
密度:1.523 g/cm3
沸点:252.1ºC at 760 mmHg
熔点:≥300°C(lit.)
闪点:106.2ºC
折射率:1.775
稳定性:Stable.
储存条件:Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

安全信息

RTECS号:RP1575000
安全说明:S36/37
WGK Germany:3
危险类别码:R22; R36/37/38
海关编码:29309070
危险品标志:Xn

生产方法及用途

生产方法
1.边搅拌边将浓氨水加到浓的硫酸铜溶液中,直到沉淀出来的氢氧化铜重新溶解。冷却后,在不断搅拌下慢慢加入氰化钾溶液至蓝色消失。然后向反应液中通入由硫化钠和盐酸反应制得的硫化氢气。控制硫化氢∶氰气=3∶ 1,搅拌均匀后彻底冷却,静置,过滤。所得结晶用冷水洗涤,经乙醇重结晶,得成品二硫代乙二酰胺。过程反应式如下: 用于测定铜、钴、镍的沉淀剂。铋、钴、铜、镍、铂、钯的点滴试验试剂。维生素C溶液的稳定剂。
用途
用于测定铜、钴、镍的沉淀剂。铋、钴、铜、镍、铂、钯的点滴试验试剂。维生素C溶液的稳定剂。

合成路线

上游原料

下游产品

图谱

13C NMR : Predict


1H NMR : Predict


13C NMR : DMSO-d6


Mass spectrum (electron ionization)


Mass


UV/Visible spectrum


IR : nujol mull


IR : KBr disc


SOLID (MINERAL OIL MULL)


gas


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