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PYROCATECHOL VIOLET AR For the Colorimetric determination of metals. Used in a rapid and sensitive method for tin. Catechol violet; Pyrocatecholsulfonphthalein
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Specification
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Description
| 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 |
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