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Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
Chemical Slide Rule/Chimeiomaton pH
Designed and made by Dr. Oliver Steffens
Germany
Card Stock
c. 2020
Dia. = 17.7 cm
Chemical 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
