无码精品人妻一区二区三区,激情综合五月天开心久久,在线 日韩 一区 二区,久久精品不卡一区二区三区

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

Industrial Ammonium Fluoride

Quality StandardGB28653-2012

Molecular FormulaNH4F                 Molecular Weight37.04

Item

Index

First grade

Qualified product

Ammonium Fluoride (NH4F) w/%  ≥

95.0

93.0

Free Acid(as HF) w/%  ≤

1.0

1.0

Ammonium fluosilicate[as(NH42SIF6]w/% ≤

0.5

1.0

 

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 25kg 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

精品人妻码一区二区三区| 国产成人精品一区二区无| 旧里番空之色水之色在线| 一本之道dvd在线播放| 无码失禁大喷潮在线播放| 久久人妻熟女一区二区| 嘿咻嘿咻免费区在线观看| 日韩欧美国产精品一区二区| 国产精品一区二区三区三州| 日韩精品欧美极一区二区| 午夜色婷婷一区二区三区| 国产在线观看XXXXX| 我,我天天要操你的骚逼| 欧美成人精品第一区二区三区| 国产精品午夜福利久久久| 亚洲人成无码网站十八禁| 久久久久久久久久不能色| 国产免费午夜精品福利视频| 成人夜色视频网站在线观看| 黄色网站亚洲| 成年人网站在线免费观看| 在线免费观看操美女嫩穴| 日韩人无码久久精品人妻| 国产性生交xxxxx无码| 99热这里只有精品69| 极品国产高颜值露脸在线| 乱码中文字幕一区二区五区| 我要大鸡吧在线观看免费| 嫩草影院网站无码进入。| 久久久久久久久一本门道| 亚洲五月天丁香婷婷综合| 欧美精品在线观看不卡一区| 尹人大香蕉在线精品视频| yw193尤物在线观看| 黄色av免费网站在线观看| 骚狐狸免费在线观看视频| 国产卡1卡2卡3精品推| 亚洲一区二区三区人人爽| 9re精品视频在线观看| 精品国产一区二区三区av性色 | 午夜成人理论无码电影在线播放|