1. <em id="b2nb9"></em><tbody id="b2nb9"></tbody>

      1. <li id="b2nb9"></li>
        1. <button id="b2nb9"><acronym id="b2nb9"></acronym></button>
          首頁 > 產品介紹
          產品名稱:R245fa

          HFC-245fa is known as pentafluoropropane and by its chemical name 1,1,1,3,3,-pentafluoropropane. Unlike CFC and HCFC blowing agents formerly used for this purpose, it has no ozone depletion potential and is nearly non-toxic. Although it is intended to remain trapped within the foam insulation, it is practically non biodegradable with a lifetime of 7.2 years when it eventually does escape into the atmosphere. It does have a high GWP of 950 (950 times the global warming effect of CO2)

          GENERAL INFORMATION

          ASHRAE # R-245fa
          Class HFC
          Refrigerant Type Single Component Fluid
          Typical Lubricant Synthetic (P)E, PVE, etc.)
          Substitutes CFC-11
          Notes Equipment redesign, ORC heat transfer fluid

          PHYSICAL PROPERTIES

          Chemical Name Pentafluoropropane
          Chemical Notation CF3CH2CHF2
          Molecular Weight (lbm/lbmol) 134
          Boiling Point @ 1 Atm, (°F) 58.8
          Freezing Point @ 1 Atm, (°F) -160
          Critical Temperature (°F) (ASTM D-1321) 309.29
          Critical Pressure* (psia) 527.94
          Saturated Liquid Density @ 86°F, (lb/ft3) 82.7
          Specific Heat of Liquid @ 86°F, (Btu/lb•°F) 0.32
          Specific Heat of Vapor @ Constant Pressure* (Cp), @ 86° and 1 Atm, (Btu/lb•°F) 0.2
          Flammable range, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition) None
          ANSI/ASHRAE Standard 34-1992 Safety Group Classification B1

          公司地址: 中國浙江省上虞市杭州灣精細化工園區緯三東路
          電話: 0086-575-82739711 傳真: 0086-575-82739282 郵編: 312369
          貿易部地址:杭州市江干區民心路100號萬銀國際大廈2808室
          電話: 0086-571-86026833 ,86026933, 86021293,86021292
          網址: http://www.hnit114.com
          信箱: bryan@artsenchem.com , artsen@artsenchem.com

          移動端二維碼

          浙江??耸⒒び邢薰?/a>?版權所有(C)2019? 網絡支持?中國化工網?全球化工網?生意寶?著作權聲明 浙ICP備05011972號-1
           
          點擊這里給我發消息
          R152a,R245fa,HFO1233zd HFO1234ze
          My status
          R152a,R245fa,HFO1233zd HFO1234ze
           
           
           
           
          日韩国产中文字幕综合_深夜福利看片_黄片特一级_国产A电影

          1. <em id="b2nb9"></em><tbody id="b2nb9"></tbody>

              1. <li id="b2nb9"></li>
                1. <button id="b2nb9"><acronym id="b2nb9"></acronym></button>