Home Chemnovo Redox Indicators Magneson I AR
01608
Magneson I AR
4-(4-Nitrophenylazo) resorcinol; Azoviolet
CAS : 74-39-5
HS Code : 2927.00900
Molecular Formula : C12H9N3O4
Molecular Weight : 259.22
Physical Properties
Physical state at 20 °C
Solid |
Colour
Red powder |
Odour
Odorless |
Melting point/ Freezing point [°C]
195 - 200 °C |
Solubility in water [% weight]
Insoluble in water |
Specifications
Appearance
Red powder |
Ash content
Max 0.5% |
Sensitivity
Detects min 1 ppm Mg |
Absorption maxima (methanol + 1 ml of 0.1 N NaOH)
439 - 445 nm |
Absorptivity (A 1%/1cm; at lmax)
1430 |
Loss on dryig (at 110°C)
Max 8% |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319
Precaution Statement: P305 + P351 + P338
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