Optical Lens Cleaning

29 October 2014

Q. How do you clean wax marks on optical lenses which are difficult to remove? A. Use either 1% Alconox or Liquinox in a heated 160 deg F ultrasonic bath followed by a deionized water rinse to clean optical lenses during manufacturing.

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Sewage Sampling Equipment Cleaner

28 October 2014

Q. We have a client who is about to begin using a peristaltic pump to obtain sewage samples from multiple sources. How should they clean the pump and tubing? A. To clean the pump and tubing use a warm 1% Liquinox solution (10 mL/L) followed by a thorough rinse. You can pump 1 system volume of Liquinox through the tubing using . . .

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Lab Glassware

Labware Cleaning: Solujet Leaving Ring

28 October 2014

Q. It appears that the Solujet is leaving a ring on some of the labware that cannot be removed. What is this ring (sodium silicate?)? How do we remove it? The labware has not been completely submerged. We have just added the Solujet soak for some labware that may have stubborn organics. We have been giving the labware a 4 hour soak in 1% Solujet, followed by warm tap water rinse then wash with Liquinox followed by 3x DI rinse. Click for the Answer.

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Sonicating hardened steel

27 October 2014

Q. We need to find an alternative cleaning solution we can use to sonicate metal (hardened steel) tools with that won't rust them. A. Hardened tool steel is prone to flash rusting on exposure to water and humidity with dissolved oxygen if there are no corrosion inhibitors present. You can clean tool steel in a warm Alconox solution (less than 120 deg F or less than 45 deg C) followed by an ambient temperature rinse (circa 70 deg C or 20 deg F) and a rapid ...

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Thin tube cleaning

24 October 2014

Q. How can I use Citranox to clean thin tubes or needles? A. To clean thin tubes, the best thing is to get cleaning solution flowing through the tubes. If you want to simultaneously clean the inside and outside of the tube, you need to flow solution through the tube under immersion. Learn More.

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Industrial Laser Chiller Cleaning

23 October 2014

Q. Chillers get scale build-up that reduce their heat transfer efficiency, thereby reducing their chiller performance. In particular industrial lasers need good chiller performance. Therefore, use a 2% Citranox or Citrajet solution to remove calcium scale build-up. Be sure a 100 micron filter of adequate flow rating is installed in the coolant path. Be sure no galvanized pipe is in the system. Learn More.

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pH of a 1% Alconox Solution

22 October 2014

Q. What is the pH of a 1% solution of Alconox for cleaning? A. A 1% solution of Alconox has a pH of 9.5. This is a mild alkaline solution suitable for general purpose cleaning of a wide range of organic and inorganic residues. The pH of a 1% Alconox solution and other technical information can be found on an Alconox technical bulletin and Material Data Safety Sheet (alconox msds).

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Recommended Liquinox cleaning temperature

22 October 2014

Q: We use your product to clean residual contamination off the surface of mixed metal boards. We are currently using 1% Liquinox in DI water at 50°C. Can you please comment on Alconox’s recommendation for a cleaning temperature? Is 50°C recommended or is another temperature preferred? A: There is nothing wrong with cleaning at 50 […]

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Labware Cleaning: Pre-soaking Pipettes

21 October 2014

Q. Why is it important to pre-soak pipettes in 1% Alconox or Liquinox before washing in pipette siphon washer with Alcotabs? A. The most common problem in pipette cleaning is residues that dry on after use and prior to cleaning. This problem is attributed to the failure to pre-soak the pipettes immediately after use. Our technical experts at Alconox recommend placing soiled pipettes in 1% Alconox or Liquinox solution immediately. Learn More.

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Tergazyme to Reduce Allergen Cross Contamination

20 October 2014

Q. Are there any benefits in using Tergazyme to reduce the risk of allergen cross contamination? As you know, allergens are proteins, so under what conditions might the protease in Tergazyme denature allergen proteins to reduce the risk of an allergic reaction. A. Yes. Tergazyme contains a serine endopeptidase protease that will lyse proteins and change their tertiary structure in a way that can reduce their allergenic nature.

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