OM SHREE GANESHYA NAMAH

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Product Name

 CALCON (SOLOCHROME DARK BLUE) (C. I. NO. 15705)

Article No

 C0058100025

CAS No

 2538-85-4

Molecular Formula

 C20H13N2NaO5S

Molecular Weight

 416.39

Specifications

Appearance:

 Dark blackish brown powder

Loss on drying (at 110°C):

 Max 10.0%

Specific absorptivity A1%,1cm (#*4*#max;0.0015%;buffer pH 12.2, calculated on dried substance):

 250-500

Identity (UV/VIS spectrum):

 Passes test

Absorption maxima ?max. (buffer pH 12.2):

 634 - 640 nm

Suitability (as indicator for metal titration):

 Passes test