Definition of phthalein in English:

phthalein

(also phthaleine, phthaleïne)

noun ˈ(f)θeɪlɪiːnˈ(f)θalɪɪnˈ(f)θeɪlɪɪn

Chemistry

Any of a series of organic dyes produced by replacing the oxygen atom of one of the C=O groups of phthalic anhydride by two (substituted) phenyl groups. Frequently attributive, especially in "phthalein dye".

Late 19th century; earliest use found in Journal of the Chemical Society. From phthal- + -ein, after German Phtaleïn.

(also phthaleine, phthaleïne)

noun

Chemistry

Any of a series of organic dyes produced by replacing the oxygen atom of one of the C=O groups of phthalic anhydride by two (substituted) phenyl groups. Frequently attributive, especially in "phthalein dye".

Late 19th century; earliest use found in Journal of the Chemical Society. From phthal- + -ein, after German Phtaleïn.

词汇	phthalein
释义	Definition of phthalein in English: phthalein (also phthaleine, phthaleïne) noun ˈ(f)θeɪlɪiːnˈ(f)θalɪɪnˈ(f)θeɪlɪɪn Chemistry Any of a series of organic dyes produced by replacing the oxygen atom of one of the C=O groups of phthalic anhydride by two (substituted) phenyl groups. Frequently attributive, especially in "phthalein dye". Origin Late 19th century; earliest use found in Journal of the Chemical Society. From phthal- + -ein, after German Phtaleïn. Definition of phthalein in US English: phthalein (also phthaleine, phthaleïne) noun Chemistry Any of a series of organic dyes produced by replacing the oxygen atom of one of the C=O groups of phthalic anhydride by two (substituted) phenyl groups. Frequently attributive, especially in "phthalein dye". Origin Late 19th century; earliest use found in Journal of the Chemical Society. From phthal- + -ein, after German Phtaleïn.
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