艾莉絲 發問時間: 科學其他:科學 · 1 0 年前

何謂Cloud Point? 其檢驗方法有哪些?

何謂Cloud Point?

高溫到低溫與低溫到高溫都可稱為Cloud Point嗎?

1 個解答

評分
  • 博仁
    Lv 6
    1 0 年前
    最佳解答

    基於以下定義,應該是指由高溫到低溫的過程所定義的溫度.於降溫過程,由澄清溶液中開始析出的溫度.測試方法依據 ASTM D2500 規範.The temperature at which the first wax crystals appear and a standardized ASTM test protocol is used to determine this temperature.www.distributiondrive.com/glossary.htmlThe temperature at which wax first becomes visible when diesel is cooled according to ASTM D2500 test procedure. Cloud point test is used to control the tendency of wax to precipitate from diesel at low temperatures leading to filter plugging and fuel starvation.www.caltex.com.au/products_glo.aspA term used in reference to detergents and in some cases waxes. Cloud point refers to the upper temperature limit at which an ingredient in a solution may separate out (precipitate). Both powders and liquids can have "cloud points," but generally, liquids have more of a tendency to "cloud out" at high temperatures. Clouding is problematic because once a chemical component falls out of a solution, that solution it can lose a considerable amount of its cleaning ability. ...www.the-power-washer-advisor.com/pressurewashingchemicalglossary.html

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