CRYSTAL PONCEAU 6R Chemical Properties

Melting point:

>300 °C(lit.)

storage temp. 

Amber Vial, Refrigerator, Under inert atmosphere

solubility 

DMSO (Slightly), Methanol (Slightly)

form 

Powder

Colour Index 

16250

color 

Red

Stability:

Light Sensitive

Safety Information

WGK Germany 

3

MSDS

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CRYSTAL PONCEAU 6R Usage And Synthesis

Uses

Crystal Ponceau 6R can be used as analyte in analytical study for determination of 36 artificial pigments in foods by ultra high performance liquid chromatography and time-of-fight mass spectrometry. Dyes and metabolites, Environmental Testing

Definition

ChEBI: An organic sodium salt that is the disodium salt of 7-hydroxy-8-[(naphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonic acid.

Preparation

Naphthalen-1-amine diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.

Properties and Applications

red. Soluble in water for red, soluble in ethanol for yellow light red, almost insoluble in acetone. The strong sulfuric acid for red light blue, diluted for scarlet. In water solution to join hydrochloric acid colour and lustre is darker, and extra a flake crystallization precipitation part; Add thick sodium hydroxide solution for yellow brown.

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