Marquis reagent — Coca plant impurities
White · Pink · Orange
Coca plant impurities
Source text (English): pink / peach
Coca plant impurities 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.
Coca plant impurities
coca-plant-impurities
Mecke reagent — Coca plant impurities
No reaction
Coca plant impurities
Source text (English): no color change
Liebermann reagent — Coca plant impurities
White · Orange · Brown
Coca plant impurities
Source text (English): faint orange
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.