国产精品99久久久久久www,青春娱乐国产分类精品二,欧美综合自拍亚洲自拍网,色欲99精品久久久久久

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

gogogo免费观看国语| 爱情大全在线观看免费| 女人喷潮完整视频| 樱桃视频高清免费观看在线播放| 香港无码av一区免费看| 天堂а√在线中文在线最新版| 亚洲国产日韩欧美高清片| 4410日韩精品久久一区| 在线成人A毛片免费播放| 亚洲在线视频| 国产+欧美+日产| 天堂在线最新版天堂中文| 老地方在线观看免费资源| 欧美人与动牲交a欧美精品| 嗯灬啊灬把腿张开灬动态图| 亚洲大香伊人蕉在人依线| 人善交video另类hd| 男人和女人在床的app| 亚洲日韩国产av无码无码精品| 美女张开腿让人桶| 真实国产老熟女无套中出| 久久婷婷五月综合色99啪| 国产精品免费久久蜜色av| av无码av天天av天天爽| 亚洲性无码一区二区三区| 久久久国产一区二区三区四区小说| 国内精品视频一区二区三区八戒| 欧美日本一道道一区二区三| 国内少妇av| 久久久91一区二区三区| 亚洲欧美中文日韩在线v日本| 国产成人精品午夜视频'| 重口味电影| 无码专区中文字幕无野区| 久久亚洲精品中文字幕馆| 亚洲成色7777777久久| 亚洲国产另类久久久精品黑人| 一本色道久久hezyo无码| 中文字幕专区在线第一区| 无码综合天天久久综合网色吧影院| 小黄片大全欧美一区二区|