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.
Cleaning Glassware Exposed to Sea Water
Q. What is the proper way to clean lab glassware that has been exposed to sea water?
A. Sea water contains a large and variable quantity of salts, biological and organic residues. Lab glassware needs to be free of any of these residues to avoid interference in research involving sea water. Sea water would not particularly present challenges beyond the normal array of residues that lab glassware sees in the wide variety of types of lab glassware that Alconox, Inc. laboratory detergents are used to clean. A standard cleaning protocol will work fine.
Electronics Cleaning – Kovar
Q. What is Kovar? What cleaner would be recommended to clean Kovar?
A. Kovar is made up of 29% nickel, 17% cobalt, .2% silicon, .3% manganese and 53.5% iron. Kovar is known for its low coefficient of thermal expansion. Kovar end uses are usually glass sealing in the electronics industry.
Cleaning Aqueous and Organic Pharamaceutical Products
Q. We wish to buy in a universal set of detergents that meet our requirements. Is there a single detergent suitable for cleaning of aqueous AND organic (wax based) pharmaceutical products?
A. Liquinox or Solujet will remove water soluble aqueous and typical organic wax based pharmaceutical product, each through different cleaning methods.
Chemical Resistance and Alconox
Q. Have you evaluated effects of Alconox on metals, elastomers, thermoplastics, and rubbers? Do you have a chemical resistance table/chart for Alconox? Thanks.
A. Alconox is compatible with a wide range of metals and plastics. You can contact cleaning@alconox.com to receive a copy of the current chemical compatibility spreadsheet. In general Alconox can be used to clean stainless steel, polyethylene, polypropylene, synthetic rubber, and PEEK.
