PYROCATECHOL VIOLET AR

For the Colorimetric determination of metals.
Used in a rapid and sensitive method for tin.
Catechol violet; Pyrocatecholsulfonphthalein

COAs

Packings

1 g (00001)

5 g (00005)

Print friendly version

Article No.	05505	Grade	AR
Purity		CAS No.	115-41-3
Molecular Formula	C₁₉H₁₄O₇S	Molecular Weight	386.38
H.S. Code	3204.9000	Shelf Life	60 Months

Physical Properties

Physical state at 20 °C	Solid	Colour	Yellow to pink
Melting point/ Freezing point [°C]	185 °C	Solubility in water [% weight]	Soluble in water

Specifications

Appearance	Dark green to green metallic or Brown Crystalline powder	Absorption maxima (in methanol)	441 to 449 nm
Specific absorptivity A1%/1 cm (λmax; methanol)	Min 375	Appearance of solution (0.1% aq. solution )	Clear
Suitability (for complexometric determination of metal oxides)	Passes test

Revision Date: 03-Oct-2015

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