Maximum Wash Temperature for Liquinox
Q. What is the maximum wash temperature for Liquinox? At this maximum temperature is there an accelerated breakdown of detergent?
A. Liquinox is heat stable all the way to boiling at standard temperature and pressure conditions. From a practical standpoint, there are some detergency mechanisms that begin to break down mechanistically as you approach boiling. Emulsions begin to become less stable as you approach within a couple degrees of boiling. If emulsifying is not a critical cleaning mechanism, this may not be relevant to you.
Lowering the pH of Tergazyme
Q. Can you lower the pH of Tergazyme using Citric acid or vinegar?
A. Yes. To adjust the pH of a 1% Tergazyme solution from pH 9.5 to about pH 8.5 add 0.1 grams of 99% anhydrous citric acid for each 5 grams of Tergazyme.
Medical Device Cleaning Validation References
Q. What medical device information is in the Medical Device Cleaning Validation References?
A. The Medical Device Cleaning Validation References for Alconox Detergents contains information about identifying residues, selecting a residue detection method, selecting a sampling method, setting residue acceptance criteria, and more.
Medical Device Cleaning – Automated Machine Detergent
Q. We are looking to use Liquinox in an automated cleaning machine. The cleaner would be agitated ultrasonically and pumped to/from the storage tank by magnetic drive pumps. We are worried that the Liquinox will foam during the transfer by pump. Is this a valid concern? If so, is there an alternative cleaner that we could use in place of the Liquinox?
Stripping NiCr-AG-NiCr Coating
Q. To strip NiCr-Ag-NiCr coating, I was preparing a solution @4% of Cerium Ammonium Nitrate (C.A.N.)and I added Citrajet @1% to be used as a wetting agent (surface inclined). The addition of Citrajet neutralized completely the effect of the C.A.N; which did not attack the NiCr layers. Can you give me some explanation and which Alconox product I have to use as wetting agent.
A. CAN is a very strong oxidizing agent. Organic functional groups with double bonds, alcohols, benzene rings and ethers are likely to be oxidized by CAN, thereby “neutralizing,” or depleting it, thereby rendering it less effective for stripping coatings. Most wetting agents have organic functional groups that will be oxidized by CAN, including Citrajet.