The Home Scientist 011 – Forensic Fingerprinting V: Acidified Peroxide
Using vinegar and drugstore hydrogen peroxide to reveal latent fingerprints on a brass cartridge case.
Using vinegar and drugstore hydrogen peroxide to reveal latent fingerprints on a brass cartridge case.
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Using an accurate balance to determine the actual volume per drop delivered by a disposable plastic (beral) pipette.
Using iron(III) nitrate to determine salicylate concentration in standardized salicylate solutions and urine. You can actually use any iron(III) salt, such as ferric chloride, ferric ammonium sulfate, and so on. Concentration is not critical.