BVDA Ninhydrin

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Main Uses: Latent and Bloodmarks on semi-Porous and Porous surfaces.

Ninhydrin is the most well known and most used reagent for visualization of fingerprints on paper and other porous materials (e.g. carton, wall-paper, latex painted walls). Ninhydrin (also known as 2,2-dihydroxyindan-1,3-dione or 1,2,3-indantrione, mono hydrate) reacts with the amino acids in sweat left behind in a fingerprint. The strongly colored compound that is then formed is called Ruhemann's purple.

Due to the strong color of Ruhemann's purple the minute amounts of amino acids (and possibly other components) left behind enable the visualization of a fingerprint.

It also reacts with amine-containing compounds (mainly proteins) in blood.

NIN-PRINT

Main Uses: Latent and Bloodmarks on semi-Porous and Porous surfaces.

NIN-PRINT, Ninhydrin solution in a spray can (CFC-free, 250 ml). Does not contain acetic acid and evaporates very fast. Inks do not run with this spray.

NIN-PRINT, ninhydrin solution in a spray can

Ninhydrin Ready for use

Ready-to-use ninhydrin solution (in 1 and 5 liter aluminium containers), petroleum ether 60-95° or HFE-7100 (plus co-solvents) based.

Ready-to-use ninhydrin solution (1 and 5 liter) in aluminium cans

Developing dish in use with ninhydrin solution

Fingerprint on white paper developed with ninhydrin

Ninhydrin Crystals

Main Uses: Latent and Bloodmarks on semi-Porous and Porous surfaces.

Ninhydrin crystals, 100 gram