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J Acid Urea
Chemical Name : Sodium6,6'-ureylene bis(1,1'-naphthol)3,3'-sulfo
Synonyms:
2-Naphthalenesulfonic acid, 7,7'-ureylenebis[4-hydroxy-(8CI);
CARBONYL J ACID
5,5 DIHYDROXY 7,7 DISULFONIC 2,2 DINAPHTHYL UREA
SCARLET ACID

CAS NO. :134-47-4
Structural Formule:


M.F.:C21H16O9N2S2
M.W.: 504.50

Use: Used as azo medium. Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS
Packing: 25kg -plastic-woven bag

Specfication:  

INDEX\TYPE

DRY POWDER

APPEARANCE

GREY-WHITE POWDER

CONTENT

80% MIN.

FREE J ACID

0.2% MAX.(HPLC)

INSOLUBLE MATTER

0.2% MAX.

CHLORIDE 

5% MAX.

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