Marquis reagent — HMA
White · Red
HMA
Source text (English): dark red
HMA reagent analysis
There are more substances than colors, so to increase analysis precision use a kit with multiple reagents. Exact color of a reaction depends on adulteration, quantity, lighting, temperature, exposure to air, storage, as well as reagent quality and degradation. Positive or negative result does not indicate if a substance is safe. No substance is 100% safe.
HMA
hma
Mecke reagent — HMA
White · Brown
HMA
Source text (English): dark brown
Mandelin reagent — HMA
Yellow · Green · Brown
HMA
Source text (English): dark brown > brown
Liebermann reagent — HMA
White · Black
HMA
Source text (English): black
Froehde reagent — HMA
White · Black
HMA
Source text (English): black
Gallic reagent — HMA
No reaction
HMA
Source text (English): no color change
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.