Replacing Sodium Hypochlorite Soak
Q. We need to replace sodium hypochlorite soak solution that we use during the inital cleaning of glassware that was used for any biological fluids.
A. Use a freshly made 1% Tergazyme (1.25 oz/gal or 10 mL/L) in warm water (not exceeding 130 deg F) followed by a thorough warm water rinse to remove biological fluids … Read More.
Laboratory Cleaning – Residue on Beakers
Q. We have a yellowish color on some of our beakers (even after washing at 150 deg F). It looks like it is scale build up. Are we using the right detergent, we have tried alconox powder & Liquinox. Do you think we need a detergent that is more acidic? This is our first time using an ultrasonic machine. We are trying to find the best produce for our application. Do we need to wash longer or at a higher concentration.
A. It is possible there is some kind of inorganic yellowish scale that is not being removed by the Alconox or Liquinox detergents. We recommend… Read the Full Story.
Manufacturing Cleaning – Vacuum Tubes
Q. We have an other department that makes a vacuum tube that is nearly identical to ours and they have a much better yield. They use Liquinox for their cleaning agent. I would like to talk to one of your engineers regarding their view of our present cleaning method (Sodium Hydroxide, Muriatic Acid, DI water, Methanol) vs. Liquinox. I have no historical information as to why we use the mentioned chemicals. The items that are cleaned are: tungsten plates, kovar pins and glass.
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Cleaning Glassware for Silver Staining
Q: I am looking for an alternative for cleaning glassware. I am going to perform a staining procedure using ammoniacal silver (diamine silver) and another one using silver nitrate. The protocols are very specific about using “chemically clean glassware”, but…
Cleaning Anhydrous HF line for Decommissioning
Q. We currently have a anhydrous HF line we will be decommissioning. We will use a lot of filtered river water to thoroughly flush Monel line. When we are finished, I would like to use the Alconox product to use as a final cleaner and neutralizing agent in the pipe before it is dismantled. I would like instructions on how much Alconox to use to perform the operation.
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