FUB-NPB-22 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.

FUB-NPB-22

fub-npb-22

Marquis reagent — FUB-NPB-22

No reaction

FUB-NPB-22

Source text (English): no color change

Mecke reagent — FUB-NPB-22

No reaction

FUB-NPB-22

Source text (English): no color change

Mandelin reagent — FUB-NPB-22

Yellow · Black

FUB-NPB-22

Source text (English): greyish

Liebermann reagent — FUB-NPB-22

White · Yellow

FUB-NPB-22

Source text (English): light yellow

Froehde reagent — FUB-NPB-22

No reaction

FUB-NPB-22

Source text (English): no color change

Gallic reagent — FUB-NPB-22

Brown

FUB-NPB-22

Source text (English): light brown

Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.

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