PX2 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.

PX2

px2

Reagent colour reaction chart for PX2
Documented reagent colour reactions for PX2.

Marquis reagent — PX2

White · Yellow

PX2

Source text (English): yellowish

Mecke reagent — PX2

No reaction

PX2

Source text (English): no color change

Mandelin reagent — PX2

No reaction

PX2

Source text (English): no color change

Liebermann reagent — PX2

White · Orange

PX2

Source text (English): orange

Froehde reagent — PX2

No reaction

PX2

Source text (English): no color change

Zimmermann reagent — PX2

White · Yellow

PX2

Source text (English): yellow

Gallic reagent — PX2

No reaction

PX2

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.

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