ALIZARINE RED S

Description

Physical state at 20 °C	Solid	Colour	Red powder
Melting point/ Freezing point [°C]	430°C	Boiling point [°C]	287 – 289°C
Initial boiling point [°C]	287°C	Final boiling point [°C]	289°C
Solubility in water [% weight]	Sparingly soluble in water

Appearance	Yellow to orange to brown powder
Absorption maxima (λmax1)	592 – 599 nm (in 0.1 N NaOH)
Absorption maxima (λmax2)	554 to 558 nm (in 0.1 N NaOH)
Visual transition range	pH 3.5 (yellow) to pH 6.5 (pink), pH 9.4 (orange-brown) to pH 12.0 (violet)

25 g	00025
100 g	00100

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P302+P352-P305+P351+P338
Risk Statement: 36/37/38

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