Marquis reagent — PMEA
No reaction
PMEA
Source text (English): no color change
PMEA 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.
PMEA
pmea
Mecke reagent — PMEA
White · Green
PMEA
Source text (English): green
Mandelin reagent — PMEA
Yellow · Green · Brown
PMEA
Source text (English): green > red / brown
Liebermann reagent — PMEA
White · Purple · Brown · Black
PMEA
Source text (English): purple > black
Froehde reagent — PMEA
White · Green
PMEA
Source text (English): light green / blue
Robadope reagent — PMEA
No reaction
PMEA
Source text (English): no pink color change
Simon's reagent — PMEA
Orange · Blue
PMEA
Source text (English): deep blue
Ehrlich reagent — PMEA
No reaction
PMEA
Source text (English): no color change
Hofmann reagent — PMEA
No reaction
PMEA
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.