无码精品人妻一区二区三区,激情综合五月天开心久久,在线 日韩 一区 二区,久久精品不卡一区二区三区

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)

N2  (volume fraction)/ 10-2                                        

(80)

O2  (volume fraction)/ 10-2                               

≤0.08

CF (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

久久久女同av一区二区| 欧美老熟妇三级特黄午夜播| 国产精品视频人人做人人| 日本最新电影一区二区三区| 亚洲欧洲国产码专区在线| 99久久国产精品免费一区二区| 亚洲成av人片在线不卡| 蜜乳av一区二区三区四| 黄色av手机在线免费观看| 欧美亚洲一区二区三区精品| 97国产成人一区二区三区| 亚洲成A人片在线播放器| 欧美理论高清理论在线看 | 一区二区三区免费国产视频| 午夜视频在线观看免费日本| 区产品乱码芒果精品P站| 久久宗合九九| 亚洲 欧美 激情 综合| 国产精品久久久久久久妇| 国产91精品一区麻豆亚洲| 成片在线看亚洲| 无码人妻精一区二区三区| 色综合久久综合香蕉色老大| 寂寞少妇的诱惑在线观看| 午夜精品一区二区三区在线视| 我要色综合网久久网久久| 亚洲熟妇无码八av在线播放| 宅男噜66一区二区三区| 国产午夜亚洲精品羞羞答答| 91精品国自产拍天天拍| 免费在线看污的视频网站| 日韩 一区 二区 精品| 2020国自精品久久一区| 久久精品国产91久久综合| 无码人妻精品区二区三区| 欧美v亚洲v另类v综合v| 午夜亚洲国产理论片中文| 99热这里只有精品18| 久久九九香蕉这里只有精品| 亚洲色国产电影在线观看| 国产精品亚洲精品韩日已满|