Porapak Q 六氟丙烯中不凝性气体测定PQ柱

名称：填充柱

固定相：高分子小球

型号：Porapak Q

规格：2m*3mm

粒度：0.15mm--0.18mm

应用：GB_T 31400-2015_氟代烷烃 不凝性气体(NCG)的测定 气相色谱法

GB/T 33063-2016 制冷剂用氟代烯烃 不凝性气体（NCG）测定通用方法

滕州市浩瀚色谱仪器技术服务有限公司，采用气相色谱法测定制冷剂中的不凝气含量,色谱柱为PQ柱,载气为氦气,TCD检测器,结果表明选择性,重复性和再现性较好,方法简便,准确,重复性好,可用于制冷剂中不凝气含量的测定。

六氟丙烯中不凝性气体测定PQ柱 测试谱图：




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