Marquis reagent — THJ-2201
White · Brown · Black
THJ-2201
Source text (English): brown > black
THJ-2201 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.
THJ-2201
thj-2201
Mecke reagent — THJ-2201
White · Brown · Black
THJ-2201
Source text (English): brown > black
Mandelin reagent — THJ-2201
Yellow · Brown · Black
THJ-2201
Source text (English): brown > black
Liebermann reagent — THJ-2201
White · Brown · Black
THJ-2201
Source text (English): brown > black
Froehde reagent — THJ-2201
White · Brown · Black
THJ-2201
Source text (English): brown > black
Robadope reagent — THJ-2201
Orange · Pink · Purple
THJ-2201
Source text (English): (slow) pink
Simon's reagent — THJ-2201
No reaction
THJ-2201
Source text (English): not blue
Ehrlich reagent — THJ-2201
No reaction
THJ-2201
Source text (English): no color change
Hofmann reagent — THJ-2201
Green · Yellow
THJ-2201
Source text (English): light green / yellow
Gallic reagent — THJ-2201
Brown · Black
THJ-2201
Source text (English): brown > black
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.