国产高清一区二区精品-日本道精品一区二区三区-精品少妇午夜福利视频-亚洲午夜av福利精品

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

Fluorine-Nitrogen Gas Mixture

Quality StandardGB/T 26251-2010

Molecular FormulaF2                       Molecular Weight38

Item

Index

F2 content (volume fraction)/ 10-2               

(20)

N (volume fraction)/ 10-2                                        

(80)

O2  (volume fraction)/ 10-2                               

≤0.08

CF4  (volume fraction)/ 10-2                                    

≤0.03

HF  (volume fraction)/ 10-2                                        

≤0.50

Properties
Melting point:-218℃, boiling point:-187℃, relative density(moisture=1)1.14(-200℃), soluble in water, relative density(air=1)1.70, saturated vapor pressure(kpa):101.32(-187℃), critical pressure(MPa):5.57
Application
Important material in fine chemical industry;widely used in electronic,laser technique and pharmaceutical industry
Storage
Avoid direct sunlight and keep away from explosive and metal powder
Transport
Be careful and be away from residential quarter
Packing
Steel gas cylinder,and net weight is 40L,or according to requirements

【Back】

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

小草少妇视频免费看视频| 日韩精品国产亚洲欧美| 国内丰满少妇嗷嗷叫在线播放| 日韩50岁老女人骚色| 日韩精品一区二区三区四区蜜桃| 特黄日韩免费一区二区三区| 国产美女极度色诱视频| 日本欧美精品一区二区三区| 国产一区二区三区日本精品| 西西美女掰开阴让你看| 欧美性大片免费在线观看| 91九色在线免费观看| 日本乱码中文字幕在线观看| av网址在线免费观看| 国产视频一区二区麻豆| 久久激情日本人妻av免费| 四虎永久播放地址免费| 免费人成网站视频在线观看不卡| 人成在线免费视频网站| 国产精品一区二区三区四区久久 | 日本成人一区二区三区在线| 欧美伊人久久大综合精品 | 青青草原这里只有精品| 久久国产国内精品国语对白| 亚洲国产熟女一区二区三| 97视频免费观看在线| 日韩欧美一区二区狠狠插| 欧美国产大片一区视频| 亚洲综合另类视频在线观看| 国产一区二区91精品| 久久精品国产久精国产爱| 一区二区三区欧美黑人| 日韩成人精品一区欧美成人| 一区二区三区午夜激情| 中文字幕av在线日韩| 国产熟女碰碰人人a久久| 亚洲欧美日韩激情另类| 97视频在线视频免费| 丰满人妻少妇一区二区| 福利在线视频一区二区| 国产欧美日韩午夜激情|