激情 小说 亚洲 图片 伦,97精品国产97久久久久久免费,人妻丰满精品一区二区a片,国产强伦姧人妻毛片

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

吉隆县| 驻马店市| 杨浦区| 藁城市| 汉川市| 宜兴市| 嘉定区| 康乐县| 临朐县| 莫力| 全椒县| 衡水市| 堆龙德庆县| 四川省| 彩票| 黄平县| 盐津县| 焉耆| 蛟河市| 连平县| 桓台县| 淮阳县| 上饶市| 五原县| 穆棱市| 瓦房店市| 鞍山市| 兴城市| 库车县| 阜康市| 镇安县| 江永县| 汝城县| 烟台市| 黄浦区| 安泽县| 阳谷县| 秀山| 新余市| 教育| 崇仁县|