PB-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.

PB-22

pb-22

Marquis reagent — PB-22

White · Orange

PB-22

Source text (English): orange

Mecke reagent — PB-22

White · Brown

PB-22

Source text (English): brown

Mandelin reagent — PB-22

Yellow · Black

PB-22

Source text (English): black

Liebermann reagent — PB-22

White · Brown · Black

PB-22

Source text (English): dark brown > black

Froehde reagent — PB-22

White · Brown

PB-22

Source text (English): brown

Gallic reagent — PB-22

Brown

PB-22

Source text (English): brown

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

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