NILE CHEMICALS

ERIOCHROME  BLACK  T.

SPECIFICATION

C20H12N3NaO7S    M.W. 461.38  
C.I.No.  14645  
Suitable as metal indicator passes test
Absorption  maximum  ( pH 10 ) 612 - 616 nm
( Indicator for the determination  
of calcium plus magnesium by  
titration with EDTA )  
   

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