Question

picnic acid is which dye? ​

Answer 1

Answer:

Picric acid forms red isopurpurate with hydrogen cyanide (HCN). By photometric measurement of the resulting dye picric acid can be used to quantify hydrogen cyanide. During the early 20th century, picric acid was used to measure blood glucose levels.

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Answer 2

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• It forms a colored complex that can be measured using spectroscopy. Picric acid forms red isopurpurate with hydrogen cyanide (HCN).