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

Industrial Anhydrous Hydrofluoric Acid

Quality StandardGB7747-2011

Molecular FormulaHF                              Molecular Weight20.01

Item

Index

Premium grade

I Class

II Class

Top-grade

First-grade

Qualified product

Hydrogen fluoride (HF) w/% ≥

99.99

99.92

99.96

99.92

99.8

Moisture(H2O) w/% ≤

0.002

0.004

0.02

0.04

0.06

Fluorosilicic Acid(H2SiF6) w/% ≤

0.002

0.005

0.008

0.015

0.050

Sulfur Dioxide(SO2)  w/% ≤

0.002

0.003

0.005

0.010

0.030

Non-volatile acid(H2SO4) w/% ≤

0.002

0.005

0.005

0.010

0.050

Properties
The product is a colorless, transparent liquid. It has a strongly pungent odor. It is very corrosive and strong toxic. White fumes can rise from it in air. Boiling point 19.5℃.
Application
The product is mainly used for making element fluoride,fluorate,fluoride haloid alkane and hydrofluoric acid. It can be also used as fluorinating agent.
Storage
The product should be stored in a storehouse with a shed and kept away from the sunlight. Strictly forbid storing it with combustibles and explosive together.
Transport
It should be treated as Grade A inorganic acid corrosive goods.
Packing
(1)It is filled in a mid-pressure steel cylinder without a fusible stopper,with net weight 330kg or 660kg per cylinder.
(2)Iso tank with net weight 25000kg or 28000kg. 

【Back】

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

成年人黄片视频在线观看| 看片在线日本中文精品网| 久久久不久久久99精品| 热久久这里都是精品国产| 国产真实老熟女无套内射| 日韩免费无码AV一二区| 久久精品7| 亚洲色欲色欲www在线播放| 欧洲无码一区二区三区在线观看| 国产精品老熟女乱一区二区| 麻豆黄网| 久久精品人妻无码一区二区三区| 99久久久精品免费观看国产| 97人妻人人做人碰人人爽| 男人脱女人衣服吃奶视频| 中文字幕久精品免费视频| 久9久999精品亚洲国产| jzzujzz少日本成熟少妇| 和上司出差被内谢在线播放| 日韩 亚洲 欧美 熟女| 久久丁香七月| 韩国三级日本三级人与波| 无码精品一区二区三区在线| 日韩电影一区二区在线播放| 春雨影院观看免费播放三年电视剧| 水中色综合AV午夜福利| 亚洲精品日韩一区二区电影| 精品少妇无码av无码专区| 成人欧美一区二区三区黑人| 99热网址在线观看一区| 女人被爽到呻吟的视频动态图| 激情按摩系列片aaaa| 无色码中文字幕亚洲精品| 精品成人国产电影在线看| 性欧美大战久久久久久久久| 波多野结衣一区二区三区av高清| 日本丰满少妇bbb| 丁香婷婷综合激情五月色| 疯狂做欲爱3d漫画| 欧美xxxxx在线观看| 牛牛澡牛牛爽一区二区|