Marquis reagent — PV-9
No reaction
PV9
Source text (English): no color change
PV-9 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.
PV-9
pv-9 · PV9
Mecke reagent — PV-9
No reaction
PV9
Source text (English): no color change
Mandelin reagent — PV-9
Yellow · Brown
PV9
Source text (English): brown
Liebermann reagent — PV-9
White · Orange
PV9
Source text (English): faint orange
Froehde reagent — PV-9
No reaction
PV9
Source text (English): no color change
Robadope reagent — PV-9
No reaction
PV9
Source text (English): no pink color change
Simon's reagent — PV-9
Orange · Black · Blue
PV9
Source text (English): blue spots
Ehrlich reagent — PV-9
No reaction
PV9
Source text (English): no color change
Hofmann reagent — PV-9
No reaction
PV9
Source text (English): no color change
Scott reagent — PV-9
Pink · Blue
PV9
Source text (English): blue
Gallic reagent — PV-9
No reaction
PV9
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.