Anodizing is widely used for protecting aluminum via an oxidic protection layer against corrosion. The bath where the anodizing is carried out contains mainly sulfuric acid, aluminum-sulfate and water. To ensure a constant composition of the bath, customer-specific acid and salt concentration is continuously monitored and thereby a constant high quality of the protective film is guaranteed.
Download this application to understand how Anton Paar’s L-Com 5500 combines density and sound velocity measurement in one instrument to measure the concentration of acid salts.
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