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

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

特级淫片日本| 997在线观看视频国产| 国产精品美女久久久久久网站| 欧美在线国产精品自拍区| 中出老熟妇| 亚洲国产嫩草18久久久| 国产精品第37页| 国产亚洲一区二区三区乱码| 久久婷婷五月趴| 五月激情色色| 人妻斩50熟女| 国产高清视频一区二区在线观看| 女教师夹震蛋上课被老师发现 | 丰满浓毛的大隂户自慰| 日本jizzav| 操奶子视频| 亚洲精品网站日本xxxxxxx| 午夜亚洲国产理论片2020| 最新国产乱人伦精品视频| 月月的奶水呻吟| 国产精品久久久久免费a∨| 欧美精品1区 2区 3区| 新婚被h嗯啊巨肉高潮失禁h| 啊同桌嗯轻一点| 国产欧美精品亚洲日本一区| 99国产欧美精品一区二区| 考试不好就要当学校的坐便器| 亚洲熟女50p| 精品无人区乱码1区2区3区| 星期六晚上到星期天早上| 制服丝袜中文字幕精品z| 少年派电影| 2021欧美一区二区三区| 国产电影在线观看一区二区三区| 国产精品久久久久精囗交| 疯狂三人交性欧美| 久久久亚洲精品无码孕妇| 日韩中文字幕乱码在线| 成人久久久久久久久久网站| 精品国产第国产综合精品| 在野外被男人躁了一夜电影|