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

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

色老久久久久99爱精品| 综合图片亚洲综合图片区| 午夜激情视频网站在线观| 国产精品国产成人国产三级| 一边亲一面膜下| 女仆穿白丝裸体吃奶玩乳视频| 欧美一区二区三区古代天堂 | 久久久国产一区二区三区| 亚洲暴爽av天天爽日日碰| 亚洲一区亚洲二区中文字幕| 欧美丰满多毛少妇XXXXX性| 成 人 免费 黄 色 网站视频| 日本精品一区二区三区试看| 激情 人妻 偷乱在线视频| 欧美与黑人午夜交久久久| 太紧了夹得我的巴好爽| 国产第一页浮力影院| 久久久久综合| 亚洲av丝袜美腿护士久久| 小雪尝禁果又粗又大的中国地图| 国产色污污视频在线观看| 黄色污污污在线看污污污| 中文字幕 日韩人妻一区| 国产精品狼友视频第一页| 亚洲欧美激情综合第一区| 久久久久久毛片免费观看| 国产精品丝袜久久久久久不卡| 免费在线看黄色av网站| 中文无码日韩欧免费视频| 下一篇久久久久久18p| 亚洲久久久精品一区二区| 中文字幕国产剧情亚洲精品| 日韩 欧美 亚洲 综合| 韩国电影办公室的在线观看| 日本免费第一区二区三区| 岛国av在线一区二区三区| 亚洲码在线中文在线观看| 日本免费一区二区三区电影| 国产亚洲色婷婷久久精品| 亚洲午夜精品一区二区麻豆| 黄色大片成人免费在线观看|