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onebird19木蟲(chóng) (小有名氣)
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[求助]
急求高手翻譯一段德文專(zhuān)利即可!
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| p-Chlorphenols werden mit 600 ccm zehnfach normaler Kalilauge I2 Stunden bei I95 bei Gegenwart von metallischem Kupferim Druckgefab geschuttelt. Nach dem Ansauern mit etwa 450 ccm konzentrierter Salzsaure wird zur Entfernungdes unveranderten p-Chlorphenols Dampf durchgeblasen und beide Flussigkeiten extrahiert. Die Ausbeute an Hydrochinon betragt 74 Prozent der Theorie. |
| p-chlorophenol are shaken with 600 cc of normal potassium hydroxide solution ten times I2 hours at I95 in the presence of metallic Kupferim Druckgefab. After acidification with about 450 cc of concentrated hydrochloric acid is used to Entfernungdes blown of unchanged p-chloro phenol extracted both steam and liquids. The yield of hydroquinone amounts to 74 percent of theoretical. |
木蟲(chóng) (小有名氣)
木蟲(chóng) (小有名氣)
木蟲(chóng) (小有名氣)
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