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

在线观看免费完整版日本 | 青青色亚洲国产综合视频| 国产精品麻豆一区二区三区| 亚洲精品白丝喷白浆无码| AV十八岁在线免费观看| 一久久久久国产免费av| 日韩午夜理论av在线观看| 久久国产综合精品欧美精品| 国产精品免费视频夜怕怕| 四虎成人精品永久免费av| 日本最新免费不卡视频一区| 2021年天堂无码视频| 黄片国产在线看| 亚洲中文综合网五月俺也去| 亚洲国产午夜福利在线看| 亚洲不卡二区三区三区四区| 亚洲欧美日韩中文高清一| 毛片无码高潮喷液视频狠| 超短被强行侵犯在线观看| 精品国产男人的天堂久久| 极品精品国产超清自在线| 久久久精品亚洲白浆无码| 99久久久无码国产精品不卡| 青青草国产免费AV一区| 潘金莲久久99国产精品| 国产精品大秀视频日韩精品| 亚洲五月综合网色九月色| 久久久精品无码中文天美| 大香蕉久久精品在线观看| 中文字幕在线无码一区二区三区| 精品无码久久久久久久久久| 国产精品清纯校花与男友| 日韩精品一区二区三区在| 人妻丰满熟妇αⅤ无码区| 97国产精品久久碰碰| 日本三级片在线观看| 日韩人妻无码精品综合网| 中文字幕一区二区三区乱| 亚洲 欧美 天堂 综合| 国产精品合集乱| 日日摸天天爽天天爽视频|