Marquis reagent — W-15
White · Orange · Brown
W-15
Source text (English): orange > brown
W-15 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.
W-15
w-15
Mecke reagent — W-15
No reaction
W-15
Source text (English): no color change
Mandelin reagent — W-15
Yellow · Green
W-15
Source text (English): light green
Liebermann reagent — W-15
White · Orange
W-15
Source text (English): orange
Froehde reagent — W-15
No reaction
W-15
Source text (English): no color change
Gallic reagent — W-15
No reaction
W-15
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.