东京热av人妻无码,国产在线视频一区二区三区,亚洲av无码一区二区二三区 ,日本人丰满xxxxhd

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

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

久久亚洲精品无码av| 桃花影院在线观看| a片高潮抽搐揉捏奶头视频| 与亲女洗澡时伦了毛片| 婷婷色国产偷v国产偷v| 亚洲GV天堂无码男同在线观看| 中文字幕丰满乱孑伦无码专区| 亚洲av久久无码精品九九| 久久天天躁狠狠躁夜夜躁2014| 国产偷窥熟妇高潮呻吟| 久久精品国产亚洲av高清热| 亚洲精品无码专区| 久久亚洲美女精品国产精品| 国产羞羞视频在线观看播放| 51福利国产在线观看午夜天堂| 国产乱人对白a片麻豆| 亚洲av片不卡无码久久蜜芽| 久久久久久亚洲精品| 夜夜爽77777妓女免费看| 乱人伦人妻精品一区二区| 欧美 亚洲 另类 偷偷 自拍| 国产真实露脸乱子伦| 少妇挤奶水a片无码网站| 久久久国产精品无码一区二区| 女の乳搾りです在线观看| av中文字幕无码免费看| 国产精品美女久久久| 亚洲人成在线观看| 人妻熟妇乱又伦精品视频app| 吸咬奶头狂揉60分钟视频| 国产精品a∨一区二区三区| 永久域名18勿进永久域名在线| 制服丝袜中文字幕在线| 粉嫩极品国产在线观看| 少妇高潮一区二区三区99| www国产成人免费观看视频| 专干老熟女视频在线观看| 艳乳欲仙欲死在线观看| 国产精品视频第一区二区三区| 亚州av综合色区无码一区| 亚洲一区精品二人人爽久久|