东京热av人妻无码,国产在线视频一区二区三区,亚洲av无码一区二区二三区 ,日本人丰满xxxxhd

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

99久久国产宗和精品1上映| 国产精品成人无码久久久| 国产69久久精品成人看| 欧美丰满熟妇bbbbbb| 制服丝袜中文字幕在线| 国产真实伦对白全集| 国产成人无码免费网站| 成人片色情免费观看网站| 国产精品无码av在线观看播放| 在c用力把桌腿a抬离地面时小说| 一本一本久久aa综合精品| 青春草在线视频观看| 国产综合精品一区二区三区| 国产chinese男男gay片| 久久99精品国产99久久6尤物| 九色少妇丨porny丨蝌蚪| 啦啦啦资源在线观看视频| 中文在线无码高潮潮喷| 一本久久a久久精品vr综合| 狼色精品人妻在线视频网站| 久久综合九色欧美综合狠狠| 中国青年gary东北大飞机打桩| 天下第一日本在线观看视频| 欧美性狂猛xxxxxbbbbb| 欧卅无码a片少妇人妻久久尤物| 这里只有精品在线视频| 老熟妇仑乱视频一区二区| 被男朋友摸下面流了很多血| 精品久久久无码中文字幕| 婷婷97狠狠成人网站| 疯狂做受xxxx高潮欧美日本| 长篇交换高h肉辣全集目录| 久久久久99精品成人片a片试看 | 日本做爰高潮又黄又爽| 久久久久久无码大片a片| 国产精品99久久久久久www| 极品教师在线观看免费完整版| 人人妻人人澡人人爽欧美一区| 熟妇高潮喷沈阳45熟妇高潮喷| 老首长玩小处雏苞| 激情综合色综合啪啪开心|