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Meaning of phthalin | Babel Free

Noun CEFR B2

Definitions

A colourless crystalline substance obtained by reduction from phthalein, into which it is easily converted by oxidation.
countable, uncountable
Any of the series of which phthalin proper is the type.
countable, uncountable

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

phthalo phthalo blue phthalo green phthalocyaninate phthalocyanine phthalogen