中文无码精品一区二区三区,欧美亚洲777奇米四色,72人少妇精品导航,777熟女色

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

最新国产原创中文日在线| 手机日韩av在线| 极品少妇被干| 日韩av中文字幕二区| 曰曰碰天天中文字幕视频| 日本精品视频一视频高清| 欧美视频在线一二三| 国产欧美亚洲一区二区欧洲| 日本特黄特色aaa大片免费| 精品熟女偷拍| 欧美人与拘性视交免费看| 稚嫩乖乖女呻吟| 午夜看福利| 污黄视频无遮挡在线观看| 国产精品999aaaa| 蝌蚪久久窝| 蜜臀av午夜一区二区三区gif| 连续高潮抽搐爽死喷水流白浆| 天天草夜夜草天天水汪汪| 成人免费午夜a大片在线| 一出一进一爽一粗一大视频| 欧美大荫蒂毛茸茸视频汇编| 13一15女人毛片| 精品国精品一区二区三区| 蝌蚪久久窝| 啊用力嗯轻一点h| 男人久久情区| 成人午夜福利视频一区二区| 国内外成人| 亚洲欧美色综合区11p| 国产孕妇三区15P| 玫瑰唇颜面坐脸vk| 一级持黄录像免费看| 日本岛国视频一区二区三区| 日韩一区二区三区精品无码视频| 少妇高潮久久久久久综合| 中出邻居人妻| 女人被强╳到高潮喷水在线观看 | 无码人妻av免费一区二区三区 | 日韩人妻丰满| eeuss影院www影院天堂|