Calcon
C.I.No.15705 Eriochrome Blue Black R, Solochrome Dark Blue

Product Code.
00666
Grade
Purity
CAS No.
2538-85-4
Molecular Formula
C20H13N2NaO5S
Molecular Weight
416.39
H.S.Code
2927.00900
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Solid
Colour
Blackish brown
Odour
Odorless
Solubility in water [% weight]
Moderate (1-10%)

Packaging

Specification

Appearance
Dark blackish brown powder
Identity (UV/VIS spectrum)
Passes test
Absorption maxima ?max. (buffer pH 12.2)
634 - 640 nm
Specific absorptivity A1%,1cm (?max;0.0015%;buffer pH 12.2, calculated on dried substance)
250-500
Loss on drying (at 110°C)
Max 10.0%
Suitability (as indicator for metal titration)
Passes test

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338