Dristan 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.

Dristan

dristan

Marquis reagent — Dristan

White · Red

Dristan

Source text (English): dark greyish red

Froehde reagent — Dristan

White · Green · Blue

Dristan

Source text (English): light blueish green

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

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