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

久久久久久久夜夜夜夜夜| 五月丁香欧美综合亚洲av| 日一日射一射天天射网站| 熟女av一区二区高清区| 国内精品久久久久影院日本| 香蕉人妻av久久久久天天| 欧美午夜性刺激在线播放| 国产网红女主播精品视频| 日本久久久久久久做爰片日本| 精品无码人妻一区二区免费av| 日本中文字幕人妻在线视频 | 亚洲自拍偷拍一区二区三| 亚洲色无码?线精品观看| 综合亚洲欧美一区二区三区| 中字幕一区二区三区乱码| 日韩一区二区三区四av| 日韩中文字幕久久久老色批| 亚洲国产AV精品| 国产精品久久久久久福利| 国产尤物av尤物在线观看| 东京热国产精品视频网站| 波野吉多结衣在线观看| 久久蜜精品国产亚洲av| 日韩欧美精品一区二区三区| 亚洲GV天堂无码男同在线观看 | 亚洲欧美日韩国产最新版| 高龄老妇乱春小说| 亚洲 成人 日韩 欧美| 亚洲片在线观看| 亚洲一区二区啊射精日韩| 国外免费的b2b网站| 性一交一乱一伦a片| 亚洲精品中文字幕中文字幕| 丝袜灬啊灬快灬高潮了AV| 中文一区二区三区欧美在线| 欧美人妻一区二区三区综合| 欧美日韩亚洲精品红桃在线| 久久aⅴ人妻少妇嫩草一| 午夜久久水蜜桃一区二区| 三级片无码视频在线观看| 亚洲自拍电影院不卡精品|