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单词 phthalin
释义

phthalin /'θælin//ˈθælɪn/

英汉-汉英词典
n. 二R甲基苯酸,酞灵
词组 | 习惯用语
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  • naphtha n. 石脑油;挥发油;粗汽油
  • ophthalmic adj. 眼睛的;眼科的;眼炎的 n. 眼药
  • Naphtali n. 拿弗他利(Jacob的第六子);拿弗他利宗族(以色列)
  • potholing n. 探勘地上坑洞(运动)

网络短语:
phthalin 还原酞
英语百科

Phenolphthalein

Synthesis of phenolphthalein:[14]

Phenolphthalein /ˌfnɒlfˈθln/ is a chemical compound with the formula C20H14O4 and is often written as "HIn" or "phph" in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.

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更新时间:2025/6/17 5:36:45