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Description
Catalogue Number	112144

Physicochemical Information
Melting Point	290 °C (decomposition)
pH value	6.9 (10 g/l, H₂O, 20 °C)
Bulk density	600 kg/m3
Solubility	210 g/l

Safety Information according to GHS
Storage class	10 – 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Storage and Shipping Information
Storage	Store at +2°C to +30°C.

Specifications
Dye content (spectrophotometrically)	≥ 40 %
Identity (UV/VIS-Spectrum)	passes test
Absorption maximum λ_max. (water)	637 – 640 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.005 g/l; water)	≥ 800
TLC-Test	passes test
Loss on drying (110 °C)	≤ 7 %
Suitability for surfactant tests	passes test

Merck 112144 0025 Disulfine Blue Vn 150 (C.i.42045) For Surfactant Tests 25 GR.