Archive | Citranox

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…

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Posted in Citranox, Metalworking & Precision Manufacturing0 Comments

Cosmetics Cleaning: Removing Erythrosine

Do you have a known solution for removing erythrosine from stainless steel? Erythrosine is also known as Red 3 when used as a cosmetic. Sometimes the cleaning is manual, other times it is automated.

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Posted in Citrajet, Citranox, Cosmetic0 Comments

Choosing Ideal Detergent for Cleaning Metal Parts

Q. We are currently writing a protocol for conducting a process validation activity for our cleaning procedures for metal parts after our machining manufacturing process. What are the differences between cleaning effectiveness of Alconox detergent for cleaning various metallic surfaces such as stainless steel, titanium and cobalt chrome? Also, does Alconox detergent effectiveness change based on contamination characteristics, surface geometry or any other factors?

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Posted in Alconox, Citranox, Metalworking & Precision Manufacturing0 Comments

Ultrasonic Cleaning Detergent Bath Life

Q: We manufacture medical devices. Can we use our Alconox or Citranox bath solution more than once? How do we know that we need to change the solution?

A: For the highest level of cleanliness, you only use a solution once. In general, in a medical device manufacturing and cleaning operation, a detergent bath will typically easily last for 8 hours.

For example, you can make up a fresh Alconox® or Citranox® solution once a day and then verify that the pH has not changed more …

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Posted in Alconox, Citranox, Medical Device0 Comments

Medical Device Cleaning: Martensitic Stainless Steel

Q: We use Alconox® on the medical device parts we manufacture that need cleaning before shipment. Alconox® detergent is working in an excellent way with austenitic stainless steel parts, but is not working that well with martensitic stainless steel. Actually, at the end of the process cleaning martensitic steel, we notice some marks on the material. Any recommendations?

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Posted in Alconox, Citranox, Medical Device0 Comments

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….

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Posted in Citranox, Laboratory, Manual Lab Cleaning, Tergazyme0 Comments

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…

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Posted in Ask Alconox, Citrajet, Citranox, Laboratory0 Comments

Making detergent solution (1%) by weight or volume

Making detergent solution (1%) of powdered detergent such as Alconox or Tergazyme, you can make your solutions by weight or by volume.

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Posted in Alconox, Citranox, Laboratory, Liquinox, Manual Lab Cleaning, Tergazyme0 Comments

Wikipedia

Removing Silicone Oil from Polyimide Surfaces

Q. How do you remove silicone oil from polyimide surfaces during a lamination process (polyimide bonded to Inconel metal foils)? The oil is only contacting the polyimide. What can be used to clean this polyimide surface that will leave behind no residue?

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Posted in Alconox, Citranox, Detonox, Medical Device0 Comments

Cleaning Iron Residue in Lab Glassware (Fe+2 and Fe+3)

Q. Please provide advice on cleaning iron residues, Fe+2 and Fe+3, in lab glassware. We need to clean down to sub ppm levels.

A. The best iron salt removing detergent for manual cleaning of lab glassware is Citranox®. Citranox is a mild acid, high chelating detergent for high performance removal of…

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Posted in Citrajet, Citranox, Laboratory0 Comments