1,1,1,2-四氟乙烷(CF3CH2F,HFC-134a)作為氟氯烴(CFCs)無(wú)污替代物廣泛應(yīng)用于致冷、發(fā)泡及氣溶膠等行業(yè)。該文敘述了HFC-134a的合成路線,通過(guò)對(duì)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(jīng)過(guò)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(yè)用1,1,1,2-四氟乙烷(HFC-134a)
范圍
本標(biāo)準(zhǔn)規(guī)定了工業(yè)用1,1,1,2-四氟乙烷(HFC-134a，亦稱為R134a)的要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、標(biāo)志、包裝、運(yùn)輸和l貯存以及安全。
本標(biāo)準(zhǔn)適用于工業(yè)用1,1,1,2-四氟乙烷。
分子式: C2H2F4
結(jié)構(gòu)式:
相對(duì)分子質(zhì)量: 102.04(按2011年國(guó)際相對(duì)原子質(zhì)量)
要求
性狀
無(wú)色透明液體，無(wú)可見固體顆粒。
技術(shù)指標(biāo)
工業(yè)用1,1,1,2-四氟乙烷應(yīng)符合表1所示的技術(shù)指標(biāo)。
浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司研發(fā)毛細(xì)管柱測(cè)定工業(yè)用1,1,1,2-四氟乙烷(HFC-134a)的純度及雜質(zhì)，面積歸一法定量，結(jié)果準(zhǔn)確可靠。
名稱：鍵合硅膠 多孔層開管 柱
規(guī)格：60m*0.32mm
型號(hào)：HH-GasPro
應(yīng)用：GB/T 18826-2016 工業(yè)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)
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