女子张开腿让男人捅爽,亚洲av香蕉一区区二区三区,亚洲成a人片在线播放,国产又大又长又粗又猛的黄视频

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

久久久久久久久久久午夜福利| 国产精品一区二区无久久久| 欧美加勒比一区二区三区| 欧美国产日韩在线播放| 国产一区二区精品久| 高清国产午夜精品久久久久久| 亚洲欧美中文在线另类| 国产日欧一片内射午夜| 久久免费少妇高潮视频| 日韩精品一区二区三区高清免费| 人妻精品一区二区三区| 国产盗摄视频在线播放| 国产精品偷窥熟女精品视频| 亚洲高清日韩中文字幕| 人妻精品久久一区二区| 亚洲国产精品一区二区三区久久| 国产黄色三级三级三级看三级| 久久久区一区二区三| 久久久久久久久久久久久久久久久久久| 日本一区二区三区综合| 女人和男人三级黄片子| 亚洲精品在线观看日韩电影| 丰满的大乳老师三级在线观看| 亚洲国产精品无码av| 国产精品人成在线观看不卡| 日韩精品欧美亚洲国产最大| 久久熟女av一区二区三区| 国产一级二级三级精品| 丰满少妇爽视频一区二区三区| 日本视频高清一区二区| 中文字幕人妻乱一区二区三区| 一区二区三区久久九九| 人人妻人人澡av天堂香蕉| 日韩一二三区中文字幕在线视频精品| 午夜30秒?久久二区| 日本淫片一区二区三区| 1024欧美一区二区三区人妻| 日本电影三级一区二区三区| 国产人成尤物在线免费观看| 日韩久久精品一区二区三区介绍| 人妻夜夜爽天天爽精品三区|