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Porapak Q 六氟丙烯中不凝性氣體測定PQ柱
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Porapak Q 六氟丙烯中不凝性氣體測定PQ柱

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產(chǎn)品名稱:Porapak Q 六氟丙烯中不凝性氣體測定PQ柱

產(chǎn)品型號:Porapak Q

產(chǎn)品廠商:浩瀚色譜(山東)應用技術開發(fā)有限公司

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Porapak Q 六氟丙烯中不凝性氣體測定PQ柱的詳細介紹

六氟丙烯中不凝性氣體測定PQ柱
六氟丙烯中不凝性氣體測定PQ柱 詳細信息:

名稱:填充柱

固定相:高分子小球

型號:Porapak Q

規(guī)格:2m*3mm

粒度:0.15mm--0.18mm

應用:GB_T 31400-2015_氟代烷烴 不凝性氣體(NCG)的測定 氣相色譜法

GB/T 33063-2016 制冷劑用氟代烯烴 不凝性氣體(NCG)測定通用方法


六氟丙烯C3F6或CF3CFCF2
1.別名·英文名
全氟丙烯;Perfluoropropylene、pernuoropropene Hexafluoro-propene.
2.用途
生成共聚物,使共聚物增添不燃、不氧化的特性;有機合成中間體。
3.制法
(1)聚四氟乙烯分解。
(2)氯二氟甲烷熱分解。
(3)1,2一二溴六氟丙烷的去溴化反應。
4.理化性質
分子量: 150.023
熔點: -156.5℃
沸點(101.325kPa): -29.6℃
液體密度(-40℃): 1583kg/m3
氣體密度(101.325kPa,20℃): 6.240kg/m3
相對密度(101.325kPa,20℃,空氣=1):5.18
比容(21.1℃,101.325kPa):0.161m3/kg
臨界溫度: 94.0℃
臨界壓力: 2900kPa
臨界密度: 510.4kg/m3
氣化熱(-29.6℃): 134.503kJ/kg
蒸氣壓(-40.71℃): 61.727kPa
(-3.31℃): 303.033kPa
(19.74℃): 652.746kPa
粘度(氣體,101.325kPa,25℃):0.0119mPa·S
導熱系數(shù)(氣體,101.325kPa,25℃):0.011255w/(m·K)
易燃性級別: 1
毒性級別: 0
反應活性級別: 0
六氟丙烯在常溫常壓下為無色不燃性氣體,然而與可燃氣混合點燃時,也會導致分解,放出有毒的產(chǎn)物。它易液化充瓶,在21.1℃時S.P.為687.4kPa。
5.毒性·安全防護
今未得到有關它的毒性數(shù)據(jù),推薦它為微毒,低濃時可認為無毒。
在無水時六氟丙烯無腐蝕性,因而常用的金屬均適用。但如與水接觸,它會緩慢水解,產(chǎn)生腐蝕條件,為此設備和管線在使用前必須除去空氣和水分。


滕州市浩瀚色譜儀器技術服務有限公司,采用氣相色譜法測定制冷劑中的不凝氣含量,色譜柱為PQ柱,載氣為氦氣,TCD檢測器,結果表明選擇性,重復性和再現(xiàn)性較好,方法簡便,準確,重復性好,可用于制冷劑中不凝氣含量的測定。



六氟丙烯中不凝性氣體測定PQ柱 測試譜圖:




PQ column for determination of non-condensable gases in hexafluoropropylene
PQ column for determination of non-condensable gases in hexafluoropropylene Details:

Name: packed column

Stationary phase: polymer beads

Model: Porapak Q

Specification: 2m * 3mm

Granularity: 0.15mm--0.18mm

Application: GB_T 31400-2015_Fluoroalkanes Determination of Non-Condensable Gases (NCG) Gas Chromatography

GB / T 33063-2016 General method for determination of non-condensable gas (NCG) for fluoroolefins for refrigerants


Hexafluoropropylene C3F6 or CF3CFCF2
1. Alias · English name
Perfluoropropylene; Perfluoropropylene, pernuoropropene Hexafluoro-propene.
2. Use
Forming copolymers, adding non-flammable and non-oxidizing properties to copolymers; organic synthesis intermediates.
3. Manufacturing method
(1) Decomposition of polytetrafluoroethylene.
(2) Thermal decomposition of chlorodifluoromethane.
(3) Debromination reaction of 1,2-dibromohexafluoropropane.
4. Physical and chemical properties
Molecular weight: 150.023
Melting point: -156.5 ℃
Boiling point (101.325kPa): -29.6 ℃
Liquid density (-40 ° C): 1583kg / m3
Gas density (101.325kPa, 20 ℃): 6.240kg / m3
Relative density (101.325kPa, 20 ℃, air = 1): 5.18
Specific volume (21.1 ℃, 101.325kPa): 0.161m3 / kg
Critical temperature: 94.0 ℃
Critical pressure: 2900kPa
Critical density: 510.4kg / m3
Gasification heat (-29.6 ℃): 134.503kJ / kg
Vapor pressure (-40.71 ° C): 61.727kPa
(-3.31 ℃): 303.033kPa
(19.74 ° C): 652.746kPa
Viscosity (gas, 101.325kPa, 25 ° C): 0.0119mPa · S
Thermal conductivity (gas, 101.325kPa, 25 ° C): 0.011255w / (m · K)
Flammability level: 1
Toxicity level: 0
Reactivity level: 0
Hexafluoropropene is a colorless and non-flammable gas at normal temperature and pressure. However, when mixed with flammable gases, it will also cause decomposition and release toxic products. It is easy to liquefy and fill bottles, and S.P. is 687.4kPa at 21.1 ℃.
5. Toxicity and safety protection
No data on its toxicity have been obtained so far, and it is recommended to be slightly toxic, and it can be considered non-toxic at low concentrations.
Hexafluoropropene is non-corrosive in the absence of water, so commonly used metals are suitable. However, if it comes into contact with water, it will slowly hydrolyze and cause corrosive conditions. Therefore, the equipment and pipeline must be removed from the air and moisture before use.


Tengzhou Haohan Chromatographic Instrument Technology Service Co., Ltd. uses gas chromatography to determine the non-condensable gas content in the refrigerant. The chromatographic column is a PQ column, the carrier gas is helium, and the TCD detector. The results show selectivity, repeatability and reproducibility. The method is simple, accurate, and repeatable. It can be used for the determination of non-condensable gas in refrigerants.



PQ column for determination of non-condensable gases in hexafluoropropylene

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