Rust inhibitors for central heating systems would probably work fine? As long as they're OK for your metal type, but I imagine they're pretty versatile.
November 23, 2018 8:39 AM, "Scott" <synbiofablab@gmail.com> wrote:
November 23, 2018 8:39 AM, "Scott" <synbiofablab@gmail.com> wrote:
We are setting up one of our stainless steel water-jacketed CO2 incubator at the lab for some BSL1 cell culture. The water in the jacket was drained about 3.5 years ago to move them. The manufacturer recommends adding rust inhibitor every two years. They don't say what the inhibitors is but the Canadian price is ridiculous at CAD$201.48 vs USD$78.39. > Biomedical Industrial Complex is alive and well - probably cost them under $20.--Any suggestion on alternate & less expensive rust inhibitors? The water needs to be neutralized."Fill the water jacket with 11.7 gallons (43.5 liters) of distilled water with a resistance range of 50K to 1M Ohm/cm (conductivity range of 20.0 to 1.0 uS/cm).""Mix 1 bag/bottle of the rust inhibitor with a gallon of water in the resistance range from 50K to 1M Ohm/cm. Drain a gallon of water from the jacket and replace it with the rust inhibitor mixture.""High purity water (1M to 18M ohm/cm resistivity) is a very aggressive solvent and is considered slightly acidic. Ideal pH for the water in the jacket is 7. Sodium hydroxide may be used to change the pH of high purity water."Cheers,Scott
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