How to use Terephthalic in a sentence

terephthalic
  • Ladenburg (Ann., 1875, 179, p. 163) to be symmetrical trimethyl benzene; terephthalic acid, the remaining isomer, must therefore be the para-compound.

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  • By reducing terephthalic acid with sodium amalgam, care being taken to neutralize the caustic soda simultaneously formed by passing in carbon dioxide, A" dihydroterephthalic acid is obtained; this results from the splitting of a Para-linkage.

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  • Dilute nitric acid oxidizes it first to para-toluic acid and then to terephthalic acid.

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  • The A' acid is formed by the direct reduction of terephthalic acid; by boiling the 2 acid with caustic soda; and by the reduction (in the heat) of A I.

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  • It cannot be prepared by a direct reduction of terephthalic acid.

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  • The A i 4 acid is also obtained by the direct reduction of terephthalic acid.

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  • The A 1.5 acid is obtained by boiling the cis- and trans-A 2.5 acids with water, which are obtained on reducing terephthalic acid with sodium amalgam in faintly alkaline solution.

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  • The barium salt (+6H 2 0) is very soluble (a distinction between phthalic and terephthalic acids).

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  • Terephthalic acid, formed by oxidizing para-diderivatives of benzene, or best by oxidizing caraway oil, a mixture of cymene and cuminol, with chromic acid, as almost insoluble in water, alcohol and ether; it sublimes without melting when heated.

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