DOC 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.

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Marquis reagent — DOC

White · Yellow · Green

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Source text (English): yellow > green

Mecke reagent — DOC

White · Green · Brown

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Source text (English): green > brown

Mandelin reagent — DOC

Yellow · Green

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Source text (English): green

Simon's reagent — DOC

No reaction

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Source text (English): Slight greyish black precip

Ehrlich reagent — DOC

No reaction

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Source text (English): no color change

Hofmann reagent — DOC

No reaction

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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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