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

Ammonium fluoride
Molecular formula NH4F
Molecular weight 37.04
CAS    NO 12125-01-8
Characters White crystal
Use Used as precipitant, glass carve, etc.
Specification Excellent grade pure, Analytically pure , chemically pure
Executive standard GB/T 1276-1999
Technical index
Name
Excellent grade pure(%)
Analytically pure (%)
Chemically pure(%)
Content(NH4F)
≥96.0
≥96.0
≥95.0
Clarity test
qualified
 qualified qualified
Ignition residue(Sulfate)
≤0.005
≤0.02
≤0.05
Free acid(NH4HF2)
≤0.2
≤0.5
≤1.0
Free alkali
qualified
 qualified qualified
Chloride(Cl)
≤0.0005
≤0.005
≤0.01
Sulfate(SO4)
≤0.005
≤0.01
≤0.02
Fluosilicate (SiF6) ≤0.08 ≤0.30 ≤0.60
Ferrum(Fe) ≤0.0005 ≤0.002 ≤0.004
Heavy metal(Pb) ≤0.0005 ≤0.001 ≤0.002
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
新和县| 临猗县| 平南县| 晋城| 乐清市| 蓝田县| 青河县| 陆川县| 开化县| 杨浦区| 三都| 镇康县| 岳池县| 阿拉善右旗| 全州县| 临泉县| 渝中区| 潼关县| 久治县| 永胜县| 长寿区| 盖州市| 克拉玛依市| 加查县| 聂荣县| 新营市| 丹巴县| 金湖县| 绥德县| 襄垣县| 绍兴县| 宜川县| 临夏市| 定西市| 礼泉县| 孟津县| 英超| 呼图壁县| 阿拉善左旗| 盐边县| 松江区|