Cleaning Carbon Deposit Swirls On Alumina Parts
Q. Our parts, made of 99.5% alumina, have carbon deposits that show up after our brazing process. We do not use a flux for our ceramic parts; we high-temp fire a moly/manganese painted paste onto the ceramic. The part is then sent out for nickel plating to prevent corrosion of the moly manganese metallization areas. The next step is our brazing.
We are not seeing any spots on the parts before brazing, but as we continue through 5 brazing cycles and braze in a hydrogen/Nitrogen furnace with the cusil braze rings, we see black spots forming that show up as high-carbon deposits with the SEM data…
Removing Polishing Compound from Aluminum
Q. What Alconox product is ideal for manual removal of polishing compound from aluminum?
A. For manual cleaning of aluminum use a warm 2% Citranox solution to remove the polishing compound. Citranox will not harm the mirror finish on the aluminum. Rinse thoroughly after washing.
Cleaning Cell Culture Tubes
I am using reusable cell culture tubes for boiling urine samples at 121°C with 8M NaOH solution. After this application, there is a white stain inside, which I can’t scrub off. I used Alconox at the concentration on the container: 3-5 Tbsp/gal. I’ve soaked them, scrubbed them, and then also sonicated in a cold Alconox solution for 30 min….
Cleaning Glass Between Salt Tests
Q. What do you recommend for cleaning glass equipment between salt tests? We are removing inorganic salt residue. A. There are many kinds of salt tests, such as corrosion, resistance, conductivity or solubility. When removing inorganic salt residue from a glass substrate, such as sodium chloride, calcium chloride, calcium carbonate or magnesium carbonate, we recommend…
Replacing Bleach in Removal of DNA
Q. We need to remove all DNA from material, bleach destroys DNA, but we use a lot of it. Any Alconox-type cleaners that can completely remove/destroy DNA without the bleach step? Click to read the answer.
