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Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
Chemical Slide Rule/Chimeiomaton pH
Designed and made by Dr. Oliver SteffensGermany
Card Stock
c. 2020Dia. = 17.7 cmChemical Industry

Notes: Used to calculate the pH values of weak and strong acids and bases in aqueous solutions as well as saline solutions

Image 1