TH-PVP 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.

TH-PVP

th-pvp

Marquis reagent — TH-PVP

White · Yellow

TH-PVP

Source text (English): yellow

Mecke reagent — TH-PVP

White · Brown · Green

TH-PVP

Source text (English): olive > green

Mandelin reagent — TH-PVP

Yellow · Green

TH-PVP

Source text (English): green

Liebermann reagent — TH-PVP

White · Orange

TH-PVP

Source text (English): orange

Froehde reagent — TH-PVP

White · Yellow

TH-PVP

Source text (English): light yellow

Gallic reagent — TH-PVP

Brown

TH-PVP

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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