Archive | Ask Alconox

How Long for Residue Free Ultrasonic Cleaning?

Q. How to determine appropriate cleaning time to clean parts with ultrasonic cleaner?

A. Observations and cleaning trials are the best way to determine appropriate cleaning time. Many people use 10 minutes as a cleaning time. For difficult residues…

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Posted in Ask Alconox, Medical Device, Metalworking & Precision Manufacturing0 Comments

Adequate Alconox Detergent Cleaning Past Shelf Life?

We need to determine whether or not our 1-year-expired Alconox powdered cleaner performed adequately on the product we produced. We keep our Alconox detergent closed in its original carton in a humidity controlled environment at about…

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Cleaning Adhesive Residues off Medical Devices

Q: We are looking for recommendations on how to remove adhesive residue left on medical devices after pulling off labels or tape. A. We are aware of many other customers using Detergent 8 to successfully remove different kinds of tough adhesive residues. We suggest using…

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Posted in Ask Alconox, Detergent 8, Medical Device0 Comments

Removing PFOS and PFOA from Lab Glassware

Q. We need to remove perfluorooctanoic acid (PFOA) and perfluorooctyl sulfonate (PFOS) from laboratory glassware and stainless steel. Since they are inorganic residues, we’re using acidic cleaners, but are not finding them as effective as we expected. Any recommendations?
A. PFOS and PFOA are polar, anionic surfactants. They will best be cleaned by a high-emulsifying, anionic-surfactant-containing cleaner that can make mixed micelles to efficiently remove these residues from surfaces….

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Posted in Alconox, Ask Alconox, Laboratory, Manual Lab Cleaning0 Comments

No Liquinox Algae Bloom

Q: Will Liquinox cause algae bloom? A: No. Liquinox will not cause algae bloom. Here’s why. There are several important factors concerning discharge of spent cleaning solutions into the environment: biodegradability, aquatic toxicity and eutrophication acceleration. Algae blooms relate specifically to eutrophication.

The primary source of eutrophication is…

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Posted in Ask Alconox, Environmental, Liquinox0 Comments

Clouding Out in Passivation

Q. We are performing Citrajet® passivation using the procedure found in your cell phone app. When finished, there are circles of “oil” floating on the Citrajet® solution, even though our parts had no oil on them. Is this normal? A: What you are seeing is not oil, but low-foaming surfactant coming out of solution…..

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Posted in Ask Alconox, Citrajet, Passivation0 Comments

No Interference in Flavors and Fragrance

Q. Why are critical cleaners essential in flavor and fragrance industries? A. Many major flavor and fragrance companies use Alconox or Liquinox detergent to soak, scrub or sonicate their manufacturing equipment. The reason they use these detergents is that they are free of all flavors, fragrances, dyes, cationic biocides or disinfectants, and emollients that might leave residues. This way…

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Posted in Alconox, Ask Alconox, Cosmetic, Food & Beverage, Liquinox0 Comments

cpap

CPAP Mask Manual Cleaning

Q. What do you recommend for cleaning of CPAP masks manually? A. Continuous positive airway pressure (CPAP) masks have become a very widely used at home medical device.  Many companies specialize in cleaning and reprocessing these masks. We would recommend Tergazyme® Enzyme-Active Powdered Detergent. It is an anionic, widely available and potent emulsifier of organic […]

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Posted in Ask Alconox, Downloads, Medical Device, Tergazyme0 Comments

Choosing Temperature for Ultrasonic Parts Cleaning

Q. How to determine appropriate temperature to clean parts with ultrasonic cleaner?

A. In general, every 10 deg C you go up in temperature doubles the cleaning speed. The faster you want to clean the hotter you should get.

There is a theoretical optimal ultrasonic cavitation temperature at around 70 deg C depending on the exact concentration of detergent. Even though in theory cavitation…

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Posted in Ask Alconox, Laboratory, Manual Lab Cleaning, Medical Device, Metalworking & Precision Manufacturing0 Comments

Cleaning Zinc Plated Metal Parts

Q. We would like to verify compatibility of zinc plated metal parts with Alconox. A. Zinc plated metal parts can be cleaned with Alconox detergent. Depending on the metal and whether there is any defect in the zinc plate coating, you can get galvanic reactions between the zinc and the underlying metal because…

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Posted in Alconox, Ask Alconox, Metalworking & Precision Manufacturing0 Comments