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

Calcium fluoride
Molecular formula CaF2
Molecular weight 78.07
CAS    NO 7789-75-5
Characters White powder
Use Used as metallurgy flux and activator for dehydration.
Specification Special grade,analytically pure , chemically pure
Executive standard HGB 3210-60
Technical index
Name
Special grade(%)
Analytically pure (%)
Chemically pure(%)
Content
≥99.0
≥98.5
Sulfate(SO4)
≤0.02
≤0.05
≤0.15
Chloride(Cl)
≤0.005
≤0.01
≤0.02
Ferrum(Fe)
≤0.003
≤0.003
≤0.025
Plumbum(Pb)
≤0.003
≤0.003
≤0.01
Nitrogenous compound(N)
≤0.01
≤0.005
≤0.02
Losses on
≤2.0(loss on drying)
≤0.4(105°C)
Carbonate(CO3)
qualified
qualified
Silicon(Si) ≤0.01 ≤0.01 ≤0.04
Packing 500kg for bottle packing40kg 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