Archive | Detergents

Why “No Phosphates” for Medical Instrument Cleaning?

Q: Why do some medical instrument makers caution against cleaning with phosphate cleaners? A: This derives from fear of Tri Sodium Phoshpate (TSP) cleaners that can have a pH of 12 in a 1% solution, which OSHA, for example, would define as corrosive, meaning…

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Posted in Alconox, Liquinox, Medical Device, Tergazyme0 Comments

Taps and Pumps for 55 Gallon Detergent Drum

We are interested in purchasing a 55 gallon drum of Liquinox®, but first need to know the threaded cap dimension of the drum to choose our tap and pump mechanism. Do you have a tap available for this cap?

A: There are two openings on the 55 gallon drum…

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Removing Cutting Oil, Linoleic Acid from Parts

Q: Some metalwork pieces have a residue of linoleic acid (traced back to the cutting oil) that remains after ultrasonic cleaning with Alconox® detergent. Will Alconox® will fully dissolve linoleic acid? Can you recommend a cleaning process to ensure complete removal of all linoleic acid residue from our parts?

A: Alconox® Powdered Precision Cleaner will not dissolve, but will emulsify, the linoleic acid on your machined parts. In order to get a linoleic-acid-free clean, increase

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Posted in Alconox, Detonox, Metalworking & Precision Manufacturing0 Comments

Degassing Ultrasonic Cleaning Solution

Q. How would we determine appropriate degassing time for solution with ultrasonic cleaner? We are cleaning with distilled water with Alconox® detergent.

A. Degassing time varies with amount of dissolved carbon dioxide, which can vary. In general…

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Posted in Alconox, Ask Alconox, Metalworking & Precision Manufacturing0 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

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