Marquis reagent — DOI
White · Green
DOI
Source text (English): (light) green
DOI 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.
DOI
doi
Mecke reagent — DOI
White · Orange
DOI
Source text (English): orange
Mandelin reagent — DOI
Yellow
DOI
Source text (English): yellow green
Scott reagent — DOI
No reaction
DOI
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.