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K - Skuola.net

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CALCONE<br />

Acido calconcarbossilico.<br />

C 21H 14N 2O 7S.3H2O. (Mr 492,5).<br />

Acido 2-idrossi-1-(2-idrossi-4-solfo-1-naftilazo)naftalen-3-carbossilico.<br />

Polvere nero-brunastra, poco solubile in acqua, molto poco solubile in<br />

acetone e in alcool, moderatamente solubile nelle soluzioni di sodio<br />

idrossido.<br />

Viraggio : libero BLU complesso VIOLETTO<br />

DITIZONE<br />

Ditizone. C 13H 12N 4S. (Mr 256,3). 1033900. [60-10-6].<br />

1,5-Difeniltiocarbazone.<br />

Polvere nero bluastra, nero brunastra o nera, praticamente insolubile in acqua,<br />

solubile in alcool.<br />

Viraggio : libero BLU VERDASTRO complesso VIOLETTO ROSSASTRO

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