久久爱综合久久爱久久爱,间谍过家家第二季在线观看免费,国产美女在线精品免费观看网址,欧美+日本+国产+在线观看

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

无码国产一区二区三区四区公司| 熟妇人妻久久中文字幕| 欧美疯狂性受XXXXX另类| 色国产色无码色欧美色在线| 久久精品国产男包 | 人人妻人人澡人人爽欧美一区| 99久久精品费精品国产一区二区 | 激情都市亚洲一区二区| 17岁日本免费完整版观看| 久久av无码av高潮av| 国产激情久久久久影院老熟女| 最近日本mv字幕免费观看| 成人性生交大片免费看一| 在线成人www免费观看视频| 久久er99热精品一区二区| 野花社区日本在线观看免费观看3 超碰国产精品久久国产精品99 | 久久无码人妻一区二区三区午夜| 精品无码成人片一区二区98| 51精品国产人成在线观看| 国产卡一卡二卡三乱码手机| 亚洲乱亚洲乱妇24p| 久久久老熟女一区二区三区| 国产国产精品人在线视| 欧美精品黑人粗大视频| 精品一区二区久久久久久久网站| 亚洲国产精品第一区二区| 国产重口老太和小伙A片| 特级做a爰片毛片免费69| 两个人看的www视频免费完整版| 一区二区三区中文字幕| 精品久久久久久综合日本| 性xxxx18免费观看视频| 国产69精品久久久久人妻刘玥| 精品无人乱码一区二区三区 | 精品人伦一区二区三区蜜桃免费| 亚洲色久国产精品久久久久影院 | 久久精品国产精品亚洲| 亚洲av一区二区无码波多野结衣 | 暗呦交小u女国产精品视频| 国产精品日日做人人爱| 精品国产AV一区二区三区|