GB/T 18826-2016 工业用四FU乙WAHFC-134a测

名称:GB/T 18826-2016 工业用四FU乙WAHFC-134a测

供应商:浩瀚色谱(山东)应用技术开发有限公司

价格:面议

最小起订量:1/根

地址:山东滕州市(商务部和技术部)

手机:13963221227

联系人:王经理 (请说在中科商务网上看到)

产品编号:198446868

更新时间:2024-12-12

发布者IP:27.215.153.214

详细说明

  1,1,1,2-四氟乙烷(CF3CH2F,HFC-134a)作为氟氯烃(CFCs)无污替代物广泛应用于致冷、发泡及气溶胶等行业。该文叙述了HFC-134a的合成路线,通过对四氯乙烯(PCE)合成路线及三氯乙烯(TCE)合成路线的比较,选择了以TCE为原料,经过中间体1,1,1-三氟-2-氯乙烷(HCFC-133a)两步气相氟化合成HFC-134a的路线。

  GB/T 18826-2016 工业用1,1,1,2-四氟乙烷(HFC-134a)

  范围

  本标准规定了工业用1,1,1,2-四氟乙烷(HFC-134a,亦称为R134a)的要求、试验方法、检验规则、标志、包装、运输和l贮存以及安全。

  本标准适用于工业用1,1,1,2-四氟乙烷。

  分子式: C2H2F4

  结构式:

  相对分子质量: 102.04(按2011年国际相对原子质量)

  要求

  性状

  无色透明液体,无可见固体颗粒。

  技术指标

  工业用1,1,1,2-四氟乙烷应符合表1所示的技术指标。

  浩瀚色谱(山东)应用技术开发有限公司研发毛细管柱测定工业用1,1,1,2-四氟乙烷(HFC-134a)的纯度及杂质,面积归一法定量,结果准确可靠。

  名称:键合硅胶 多孔层开管 柱

  规格:60m*0.32mm

  型号:HH-GasPro

  应用:GB/T 18826-2016 工业用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)