Ninhydrin is one of the easiest and most effective methods for developing latent prints on paper. Many latent print examiners use Ninhydrin exclusively on paper because of its effectiveness and/or their lack of a proper setup for DFO. Ninhydrin should always be used in fume hood or with an appropriate filter mask.
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Very economical
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Can also be mixed with 3M™ Novec™ Engineered Fluid HFE-7100 for a less toxic and non-flammable solution
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Crystals have an indefinite shelf life
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Working solution is one year
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.jpg "Ninhydrin Crystals - 100 grams")