Marquis reagent — U-49900
No reaction
U-49900
Source text (English): no color change
U-49900 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.
U-49900
u-49900
Mecke reagent — U-49900
No reaction
U-49900
Source text (English): no color change
Mandelin reagent — U-49900
Yellow · Orange · Red · Brown · Yellow
U-49900
Source text (English): short reddish
Liebermann reagent — U-49900
No reaction
U-49900
Source text (English): no color change
Froehde reagent — U-49900
No reaction
U-49900
Source text (English): no color change
Ehrlich reagent — U-49900
No reaction
U-49900
Source text (English): no color change not dissolving
Hofmann reagent — U-49900
No reaction
U-49900
Source text (English): no color change
Gallic reagent — U-49900
No reaction
U-49900
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.