爱逼综合网-久久免费视频2-亚洲少妇xxxx-成年人免费公开视频-一级的大片-国产亚洲精品成人av久久影院-欧美精品二区+ftped2k-日韩AV在线电影网站-日本公与妇电影三级2,强乱中文字幕av一区乱码,欧美在线看片a免费观看,亚洲精品三级在线观看

Welcome to Fujian Yongjing Technology Co., Ltd. the website!

Contact us

Add: 18#, Xin'An Road, Shaowu City, Fujian, China
International Trade Dept.
Tel: +86-599-6655932/6654968
Fax: +86-599-6654591
Home Trade Dept. 
Tel: +86-599-6654866/6654968
Fax: +86-599-6655755
High-purity Chemicals Dept.
Tel: +86-599-6655536/6654968
Fax: +86-599-6655755


Products

High Quality Ammonium Fluoride

Quality Standard

Molecular FormulaNH4F               Molecular Weight37.04

Item

Index

Ammonium Fluoride (NH4F) w/%  ≥

95.0

Free Acid(as HF) w/%  ≤

1.0

Ammonium fluosilicate[as(NH42SIF6] w/%  ≤     

0.5

Sulfate(SO4) w/%  ≤                                          

0.2

Moisture(H2O) w/%  ≤     

4.0

Insoluble solid in water  w/%  ≤

0.0015

Ignition residue w/%  ≤

0.2

Fe w/%  ≤

0.01

Heavy metal(as Pb) w/%  ≤

0.006

Properties
The product is a white powdery crystal. It can deliquesce easily and dissolve easily in water. It can dissolve in alcohol slightly. It can be resolved when it is affected by the heat or it is in hot water. It can corrode glass. It’s poisonous.
Application
The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
Storage
Moisture-proof and sealed preservation is needed.
Transport
It should be treated as inorganic poisonous goods.
Packing
The product is packed in a 10kg or 20kg polythene plastic bag. Also pack it on consumer requests.

【Back】

Copyright(C)2017,Fujian Yongjing Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice