Marquis reagent — 25C-NBF
White · Yellow · Green
25C-NBF
Source text (English): yellow > greenish
25C-NBF 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.
25C-NBF
25c-nbf
Mecke reagent — 25C-NBF
White · Brown · Green
25C-NBF
Source text (English): brown > green
Mandelin reagent — 25C-NBF
Yellow · Green
25C-NBF
Source text (English): green
Liebermann reagent — 25C-NBF
White · Black
25C-NBF
Source text (English): black
Froehde reagent — 25C-NBF
White · Yellow · Green
25C-NBF
Source text (English): yellow > green (light)
Gallic reagent — 25C-NBF
No reaction
25C-NBF
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.