1,1,1,2-四氟乙烷(CF3CH2F,HFC-134a)作為氟氯烴(CFCs)無污替代物廣泛應用于致冷、發泡及氣溶膠等行業。該文敘述了HFC-134a的合成路線,通過對四氯乙烯(PCE)合成路線及三氯乙烯(TCE)合成路線的比較,選擇了以TCE為原料,經過中間體1,1,1-三氟-2-氯乙烷(HCFC-133a)兩步氣相氟化合成HFC-134a的路線。
GB/T 18826-2016 工業用1,1,1,2-四氟乙烷(HFC-134a)
范圍
本標準規定了工業用1,1,1,2-四氟乙烷(HFC-134a，亦稱為R134a)的要求、試驗方法、檢驗規則、標志、包裝、運輸和l貯存以及安全。
本標準適用于工業用1,1,1,2-四氟乙烷。
分子式: C2H2F4
結構式:
相對分子質量: 102.04(按2011年國際相對原子質量)
要求
性狀
無色透明液體，無可見固體顆粒。
技術指標
工業用1,1,1,2-四氟乙烷應符合表1所示的技術指標。
浩瀚色譜（山東）應用技術開發有限公司研發毛細管柱測定工業用1,1,1,2-四氟乙烷(HFC-134a)的純度及雜質，面積歸一法定量，結果準確可靠。
名稱:鍵合硅膠 多孔層開管 柱
規格:60m*0.32mm
型號:HH-GasPro
應用:GB/T 18826-2016 工業用1,1,1,2-四氟乙烷(HFC-134a)
1,1,1,2-tetrafluoroethane (CF3CH2F, HFC-134a) is widely used in refrigeration, foaming, aerosol and other industries as a pollution-free substitute for chlorofluorocarbons (CFCs). This paper describes the synthetic route of HFC-134a. Through the comparison of the synthetic routes of tetrachloroethylene (PCE) and trichloroethylene (TCE), the synthetic route of HFC-134a was selected by using TCE as raw material and through the two-step gas-phase fluorination of the intermediate 1,1,1-trifluoro-2-chloroethane (HCFC-133a).
GB/T 18826-2016 1,1,1,2-Tetrafluoroethane for industrial use (HFC-134a)
Range
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage and safety of 1,1,1,2-tetrafluoroethane (HFC-134a, also known as R134a) for industrial use.
This standard is applicable to 1,1,1,2-tetrafluoroethane for industrial use.
Molecular formula: C2H2F4
Structural formula:
Relative molecular weight: 102.04 (according to the 2011 international relative atomic mass)
requirement
character
Colorless transparent liquid, no visible solid particles.
Technical indicators
1,1,1,2-tetrafluoroethane for industrial use shall meet the technical indicators shown in Table 1.
The purity and impurities of 1,1,1,2-tetrafluoroethane (HFC-134a) for industrial use were determined by capillary column developed by Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. The results were accurate and reliable by area normalization method.
Name: Bonded silica gel porous layer open string
Specification: 60m * 0.32mm
Model: HH-GasPro
Application: GB/T 18826-2016 1,1,1,2-Tetrafluoroethane for industrial use (HFC-134a)