Marquis reagent — FUB-PB22
White · Orange
FUB-PB22
Source text (English): orange
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.
fub-pb22

White · Orange
FUB-PB22
Source text (English): orange
White · Brown
FUB-PB22
Source text (English): light brown
Yellow · Brown
FUB-PB22
Source text (English): dark brown
White · Brown
FUB-PB22
Source text (English): dark brown
White · Brown
FUB-PB22
Source text (English): light brown
Brown
FUB-PB22
Source text (English): brown
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.