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Details and Image

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

Notes: "1) Used to calculate the proportions of chemical constituents and elements in compounds based on stoichiometry and molar mass. 2) Also used to calculate the pH values of acidic and alkaline solutions, as well as saline solutions."

Image 1