Liebermann reagent — URB-597
White · Yellow · Brown
URB-597
Source text (English): yellow / brown
URB-597 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.
URB-597
urb-597
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.