1-NAPHTHOL-3, 6-DI SULPHONIC ACID

CAS NO. :

578-85-8

NAME OF PRODUCT :

1 - NAPHTHOL-3, 6-DISULPHONIC ACID

EMPIRICAL FORMULA :

C10H8S2O7 

MOLECULAR WEIGHT :

304 ( Free Acid )

STRUCTURAL FORMULA :

Physical Appearance

PINKISH-GREY PRESS CAKE

ASSAY /PURITY:

NOT LESS THAN 40% (MW 304) ( BY COUPLING METHOD )

BALANCE :

WATER AND INORGANIC SALTS, MAINLY SODIUM CHLORIDE

1,3,6 NAPHTHALENE TRI- SULFONIC ACID CONTENT :

Nil

4,7 DIHYDROXY NAPHTHELENE :

TRACES 2,SULFONIC ACID

Insolubles

0.50 % MAXIMUM 

SOLUBILITY

SOLUBLE IN DILUTE ALKALINE SOLUTION 

USES

INTERMEDIATES FOR DYES ACID RED 3,5,7,8,16,99,111,138,164,323,BLUE 174,MODRANT GREEN 52, DIRECT VIOLET 3,17, ACID BLUE 35,SOLVENT RED 32 ETC

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