天天视频国产免费入口|日本一区二区免费在线|亚洲成色999久久网站|久99久精品视频免费观|由伊人久久大最新发布版本|国产精品亚洲一区二区无码|欧美a锋一区二区三区久久|日韩一区二区视频免费在线观看

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

Ammonium bifluoride
Molecular formula NH4HF2
Molecular weight 57.04
CAS    NO 1341-49-7
Characters White orthorhombic crystal
Use Used for carving for china and glass.
Specification Analytically pure , chemically pure
Executive standard GB/T 1278-1994
Technical index
Name
 Analytically pure (%) Chemically pure(%)
Content
≥98.0
 ≥97.0
Ignition residue(Sulfate)
≤0.01
 ≤0.05
Chloride(Cl)
≤0.001
 ≤0.005
Sulfate(SO4)
≤0.005
 ≤0.01
Fluosilicate (SiF6)
≤0.2
 ≤0.5
Ferrum(Fe)
≤0.001
 ≤0.005
Heavy metal(Pb)
 ≤0.002 ≤0.005
Packing 500kg for bottle packing, 40kg for pail packing, 25kg for paper plastic 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