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汉语拼音：fēn tài

1.有机化合物，无色结晶体，它的酒精溶液在中性或酸性溶液中无色，在碱性溶液中呈红色。化学分析上用做指示剂。

1. 有机化合物，无色结晶体，它的酒精溶液在中性或酸性溶液中无色，在碱性溶液中呈红色。化学分析上用做指示剂。

• It is reacted with phenol to produce phenolphthalein, used as an indicator, a dye, and a pharmaceutical.

  它与酚反应生产酚酞，可用作指示剂、染料和医药。

• OBJECTIVE: To evaluate the uncertainty in the determination of the content of phenolphthalein tablet by UV spectrophotometry .

  目的：评定以紫外分光光度法测定酚酞片含量的不确定度。

• The causes of producing error results were analyzed at detecting alkaline cell seal characteristics, using phenolphthalein solution.

  分析了用酚酞试剂检测碱性电池密封性能产生错误结果的原因。

• A white or pale yellow crystalline powder, C20H14O4, used as an acid-base indicator, in making dyes, and in medicine as a laxative.

  苯酚酞一种白色或淡黄色的晶体粉末，c20h14o4，用作酸性指示剂，用于制染料，并在医学上用作一种轻泻剂。

• CHEMICAL ANALYSIS OF ORGANIC PHTHALATES. DETERMINATION OF ACIDITY TO PHENOLPHTHALEIN.

  有机酞酸盐的化学分析.酸度的酚酞法测定

• Phenolphthalein : Toxic organic dye. It should be handled with the usual precautions.

  酚酞：有毒的有染料，像平时一样谨慎处理。

• The assay of content of methoxamine hydrochloric acid using phenolphthalein indicator and NaOH as titrant was developed.

  提出了以酚酞为指示剂，氢氧化钠为滴定剂测定甲氧胺盐酸盐含量的方法。

• CHEMICAL ANALYSIS OF MALEIC AND PHTAHLIC ANHYDRIDES. ESTIMATE OF CONCENTRATION BY DETERMINATION OF TOTAL ACIDITY WITH PHTHENOLPHTHALEIN.

  马来酐和酞酐的化学分析.总酸度的酚酞滴定法测定

• It is by transparent propylene varnish, phenolphthalein indicator is mixed catch pink alkalescent medium to mix make.

  它是由透明丙烯清漆、酚酞指示剂和染成粉红色的碱性介质混合制成。