Reagent Grade Pyrogallol Pyrogallic Acid Crystals, 25g Chemical_Luminol and PCB-etching demos without weighing

and PCB-etching demos without weighing the hydrated lump form

the high-volume liquid-medium counterpart to the 100-case nutrient agar slants for shake-flask and aerated-culture work across whole-school programs

supplying enclosed-wiper variable resistance for student safety

step-up to 24V transformer

Each sample is approximately 3" long

Reagent Grade Pyrogallol Pyrogallic Acid Crystals, 25g Chemical_Luminol and PCB-etching demos without weighingTwenty five gram bottle of reagent grade pyrogallol crystals (pyrogallic acid), the trihydroxybenzene used as a photographic developer, oxygen absorber, and analytical chemistry reagent.