PYROCATECHOL VIOLET
PYROCATECHOL VIOLET AR
For the Colorimetric determination of metals.
Used in a rapid and sensitive method for tin.
Used in a rapid and sensitive method for tin.
Short Name: PYROCATECHOL VIOLET
Synonym: Catechol violet; Pyrocatecholsulfonphthalein
Basic Details
Article No.
LG101954
Grade
AR
Purity
CAS No.
115-41-3
HS Code
3204.9000
Shelf Life
60 Months
Packings Avialable
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
Chemical 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
Safety Information & Hazard Symbols