Marquis reagent — PMA
No reaction
PMA
Source text (English): no color change
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.
pma

No reaction
PMA
Source text (English): no color change
White · Green
PMA
Source text (English): green
Yellow · Green · Brown
PMA
Source text (English): green > red / brown > brown
White · Purple · Brown · Black
PMA
Source text (English): purple > black
White · Green
PMA
Source text (English): light green / blue
Orange · Pink · Brown · Black
PMA
Source text (English): > pink > grey/brown
No reaction
PMA
Source text (English): no blue color change
No reaction
PMA
Source text (English): no color change
No reaction
PMA
Source text (English): no color change
Pink · Green
PMA
Source text (English): pale green
White · Yellow
PMA
Source text (English): light yellow

Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.