Alizarine Complexon Indicator for EDTA titration
An indicator for EDTA titration especially in acid solution for spectrophotometric determination of fluoride
(3,4-Dihydroxy-2-anthraquinonyl)methyliminodiacetic acid dihydrate; 3,4-Dihydroxyanthraquinon-2-yl-methylimino-diacetic acid; Alizarin Fluorine Blue, Alizarin-3-methylamine-N,N-diacetic acid; Alizarin-3-methyliminodiacetic acid
Product Code. |
00098 |
Grade |
|
Purity |
Min. 88% |
CAS No. |
3952-78-1 |
Molecular Formula |
C19H15NO8.2H2O |
Molecular Weight |
421.36 |
H.S.Code |
2914.79900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Brown powder |
Melting point/ Freezing point [°C] |
185 °C |
| Vapour density |
14.53 |
Solubility in water [% weight] |
Slightly soluble in water |
Packaging
Specification
| Appearance | Brown colored powder |
| Identity | Passes test |
| Absorption maxima in methanol | 425 – 430 nm |
| Absorptivity (A 1%/1cm; at lmax) | Min 110.0 |
| Insoluble matter in NaOH | Passes test |
| Loss on drying (at 135°C) | Max 5.0% |
Safety Information and Hazard Symbols