真实国产乱人伦精品视频|国产区图片区小说区亚洲区|人妻少妇精品视频一区二区三区|一道本不卡免费一区二区三区|

>> Tel : +86-936-4458369
>> Mobile : +86-13812304408  
                     +86-13776461818 
>> E-mail : sales@tongshichem.com
                     384922761@qq.com

Hydrofluoric acid
Molecular formula HF
Molecular weight 20.01
CAS    NO 7664-39-3
Characters Colorless transparent smoking liquid
Use Used to test silicon, metallurgy analysis, etc.
Specification Analytically pure 40%-50%, chemically pure40%-50%, industrial grade20%-50%
Executive standard GB/T 620-1993.
Technical index
Name
Excellent grade pure(%)
Analytically pure (%)
Chemically pure(%)
Ignition residue(Sulfate)
≤0.001
≤0.002
≤0.01
Chloride(Cl)
≤0.0005
≤0.001
≤0.005
Sulfate and sulfite(SO4)
≤0.001
≤0.002
≤0.005
Phosphate(PO4)
≤0.0001
≤0.0002
≤0.0005
Fluosilicate (SiF6)
≤0.02
≤0.04
≤0.06
Ferrum(Fe)
≤0.00005
≤0.0001
≤0.0005
Heavy metal(Pb)
≤0.0001
≤0.0005
≤0.001
Packing 500ml for bottle packing, 25kg for pail packing.
【Back】
Home | About us | Product | News | Quality | Culture | Order | Contact us | 中文版
Copyright(C)2015, Gansu Tongshi Technology Co., Ltd.(Suqian Tongshi Reagent Co.,Ltd.) All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice
浏阳市| 金昌市| 衡东县| 女性| 南京市| 綦江县| 盈江县| 竹山县| 西青区| 岳普湖县| 临湘市| 齐齐哈尔市| 蕲春县| 常熟市| 类乌齐县| 调兵山市| 偃师市| 赣州市| 郸城县| 祥云县| 湘西| 广西| 共和县| 思南县| 平山县| 阳曲县| 达州市| 霞浦县| 紫阳县| 文登市| 清原| 余姚市| 红原县| 高台县| 砀山县| 五指山市| 越西县| 扶绥县| 凌源市| 扶风县| 博客|