久久爱综合久久爱久久爱,间谍过家家第二季在线观看免费,国产美女在线精品免费观看网址,欧美+日本+国产+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

久久欧美牲大无无码毛片| 欧美成人片一区二区三区| 国产SUV精品一区二人妻| 亚洲色欲色欲WWW在线成人网| 337p日本欧洲亚洲大胆色噜噜| 国产精品爽黄69天堂A片潘金莲| 亚洲成av人综合在线观看| 色综合色综合久久综合频道88| 无码精品a∨在线观看免费| 色婷婷综合久久久久中文一区二区| 国产精品成人一区二区三区| 最好免费高清视频在线观看| 亚洲国产精品无码久久一线| 国产成人亚洲综合| 国产色情精品一区二区| 乱公和我做爽死我视频免费| 国产精品一区二区AV| 久久99精品久久久久子伦| 欧美乱大交XXXXX潮喷| 国产精品99久久久久久人| 精品一区二区三区免费毛片爱| 未满十八18禁止免费无码网站| 久久免费的精品国产V∧| 狠狠色综合网站久久久久久久| a级大胆欧美人体大胆666| 亚洲乱码av中文一区二区| 国产成人aaaaa级毛片| 国产真人无遮挡作爱免费视频| 国产裸体美女永久免费无遮挡| 欧美乱妇高清无乱码在线观看| 国产精品视频第一区二区三区| 99久久无码一区人妻A片| 国产日产欧产精品| 免费无需播放器看的AV| 久久精品国产一区二区三区肥胖| 亚欧美无遮挡HD高清在线视频| 成人av视频免费观看| 无人在线观看高清免费完整版| 亚洲国产成人精品无码区| 亚洲欧美精品aaaaaa片| 精品久久久久久国产|