搡老熟女国产,A片毛片免费看,日本人妻巨大乳挤奶水APP,中文字幕精品一区二区三区

Products

Ethyl thiocarbamate

CAS Number: 

Major component: Sodium diethyl dithiocarbamate

Molecular Formula: (C2H5)2NCSSNa · 3H2O

Structural Formula:


Description: 
White or gale gray crystal, no pungent odour, freely soluble in water and decomposed into carbon disulfide and diethylamine etc. with acids.

Principal uses: 
The collectivity of Ethyl Thiocarbamate is similar with xanthates and dithiophosphages. Ethyl Thiocarbamate displays strong collective power and rapid flotation, low dosage in comparison with xanthates and dithiophosphates. Because its collectivity for pyrites is weak, Ethyl Thiocarbamate exhibits excellent selectivity in flotation of sulfide ores. Ethyl Thiocarbamate also exhibits the better flotation results than xanthates and dithiophosphates in flotation of copper, lead, zinc, antimony and other polymetallic sulfides. It is also used in refining of metallurgical processes, and as a promoter in rubber industry. 

Specification:

Item
Index
Sodium diethyl dithiocarbamate content % ≥ 94.0
Free alkali % ≤ 0.1
Period of validity (month) 12
Packing: 50kg/steel drum, 40kg/plastic drum


Storage & transport: To be protected from water, torrid sunlight and fire.

The pioneer and cradle of China's mineral processing and pharmaceutical industry
A mineral processing agent production enterprise integrating production, research and development, and marketing
Home

Home

About us

About us

Products

Products

Contact us

Contact us

高潮搐痉挛潮喷av| 粗大的内捧猛烈进出在线视频 | 无遮挡H纯肉动漫在线播放| 扒开粉嫩小泬舌头伸进去视频| 久久婷婷色综合一区二区| AV无码精品一区二区三区四区| 成熟女人优雅涵养说说| ASIAN艳丽的少妇PICS| gogo人体gogo西西大尺度高清| 无码人妻丰满熟妇区五十路百度 | 久久精品熟女亚洲AV麻豆| 久久精品免费一区二区三区| 国产SUV精品一区二区88L| 玩弄了裸睡少妇人妻野战| 国产品爽爽妓女A片毛片| 国产另类ts人妖一区二区| 中华姓氏起源一览图| 亚洲色精品三区二区一区| 极品少妇高潮啪啪av无码吴梦梦| av无码免费播放| 一本色道久久88亚洲精品综合| 人禽杂交18禁网站免费| 女仆穿白丝裸体吃奶玩乳视频| 国产JAZZ亚洲护士无码| 玩50岁四川熟人A片| WC凹凸撒尿间谍女厕HD| gogo全球大胆高清人体444| 老太BBwwBBww高潮| 大胆人体艺术摄影| 99精品亚洲AV无码国产另类| 偷拍真实夫妇作爱视频| 中文无码AV一区二区三区| 大内密探零零性性| 国产精品色情aaaaa片软件| 国产在线观看国偷精品产拍| 大臿蕉一本直道在线视频| 亚洲乱码精品久久久久..| japanesefreel体内精日本| 日日碰狠狠添天天爽无码| 色欲欲WWW成人网站| 国内揄拍国产精品人妻|