同性两男a片黄在线观看,午夜大乳房视频在线播放,在线观看国产一区二三区,青青操视频免费在线观看

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

Reagent Grade Hydrofluoric Acid

Quality StandardGB620-2011

Molecular FormulaHF                             Molecular Weight20.01

Item

Index

G.R.

A.R.

C.P.

Hydrogen fluoride(HF)  w/%  ≥

40.0

40.0

40.0

Ignition Residue(sulfate) w/%   ≤

0.001

0.002

0.001

Chloride Content(Cl)  w/%   ≤

0.0005

0.001

0.005

Sulfate and Sulfite(SO4) w/%   ≤

0.001

0.002

0.005

Phosphate(PO4) w/%   ≤

0.0001

0.0002

0.0005

Fluorosilicate(SiF6) w/%  ≤

0.02

0.04

0.06

Fe  w/%  ≤

0.00005

0.0001

0.00005

Heavy metal(Pb) w/%  ≤

0.0001

0.0005

0.001

Properties
The product is a colorless and transparent soluble. It has a strongly pungent odor and a strong toxicity. It is very corrosive.
Application
The product is used in chemical industry,atomic energy industry chemical reagent and electronics cleaning.
Storage
The product should be stored in a storehouse with good ventilation.
Transport
It should be treated as Grade A inorganic acid corrosive goods during its transport. Avoid heating or getting wet in the rain. Slightly load and unload. Avoid striking.
Packing
The product is filled in a 25kg polythene plastic drum. Also fill it on consumer requests.

【Back】

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

亚洲高清无专区日韩精品 | 青青青在线香蕉国产精品| 无码人妻少妇色欲av一区二区| 丰满少妇一区二区三区视频| 国产无套精品一区二区| 成人免费电影网站| 激情人妻绿帽王八系列| 国产亚洲综合另类色专区 | 色婷婷在线免费观看视频| 日本欧美在线一区二区三区| 久久久久国色av免费看| 亚洲视频丁香五月天婷婷| 中文字幕一区二区久久久| 娇妻被交换粗又大又硬无| 国产午夜亚洲精品理论秘密| 免费播放一区二区三区才| 成人精品一区二区www| 国产高清在线a视频大全| 久久精品国产99国产精品导航| 九九热久久精品免费视频| 亚洲av制服丝袜av天堂| 国产精品全国免费观看高| 日韩欧美亚洲一区二区在线 | 高清播放器欧美大片| 污污的网站国产乱伦无码| 女人18毛片A级毛片嫰阝| 男人的天堂2026久久| 国产成人精品欧美一区二区| 青青视频在线视频自拍一区| 国产精品18久久久久久欧美网址| 亚洲欧洲菲洲老太太逼逼| 青青草原vip在线观看| 精品国精品国产自在久国产应用 | 啪啪东北老熟女45分钟| 国产精品无码我AV在线| 亚洲偷偷自拍码高清视频| 日本高清三级精品一区二区| 亚洲综合色色| 英语老师给我吃她的小兔兔| 秋霞午夜av一区二区三区| 久久艹牛牛影视|