CALCON

Product Code B-00666 BRAND Bio-Chem
Grade CAS No 2538-85-4
Molecular Formula C20H13N2NaO5S Molecular Weight 416.39
H.S.Code 2927.00900 Shelf Life 60 Months
Purity 99 %

Physical Properties

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

Packaging

Bio-Fine

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: GHS05 , GHS07 ,GHS08 ,GHS09
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338

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