Archive | Liquinox

Ensuring Accurate Formulation of Liquinox Detergent

Q. I am a validation manager and we use Liquinox in multiple pieces of equipment across our manufacturing site. While witnessing our cleaning, I noticed the dilution instructions are not being followed. Instead, operators are adding some squirts/pumps/pours from the bottle into a bucket with purified water. Does Liquinox have a range of effective concentration?  Do you have auto-mix ideas or other dosing solutions for customers facing this issue of accurate formulation?

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Posted in Biotechnology, Cosmetic, Liquinox, Medical Device, Pharmaceutical0 Comments

Ideal pH Range for Ultrasonic Cleaning with Liquinox

Q. What is the acceptable pH range of Liquinox for effective cleaning in an ultrasonic bath? Our solution hovers around 7 and I am concerned that’s not effective. Also, does the temperature of the ultrasonic cleaning solution affect the detergent pH?

A. A typical reading for Liquinox® Critical Cleaning Liquid Detergent at usage dilution is ~pH 8.5. A pH 7 reading on Liquinox detergent would indicate that a notable amount of fouling has occurred from use.

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Posted in Ask Alconox, Liquinox0 Comments

Lab Glassware

Labware Cleaning: Solujet Leaving Ring

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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Posted in Laboratory, Liquinox, Manual Lab Cleaning, Solujet0 Comments

Is Liquinox Drain Safe?

Q. In reviewing the SDS for Liquinox, we noticed that it says “Should not be released into the environment. Prevent from reaching drains, sewer or waterway.” How do you recommend we rinse components if Liquinox should not reach the drain?

A. The section you mention in the SDS for Liquinox® Critical Cleaning Liquid Detergent , 6.1, refers to untreated drains (i.e. the street) and other direct-to-environment pathways. The drains from labs, manufacturing plants and the like will have septic and/or treatment processes prior to the environment. In fact, we often…

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Lab Test Tubes

Minimum Detergent Concentration?

My question is related to a minimum detergent concentration.  We manually wash labware of all sizes in 0.3% Liquinox solution. We also pre-wash or pre-rinse the labware and control our parts load.  We rarely have failures. We want to change our protocol to extend the wash water use for one day instead of based on a numerical parts load.  Do you think a 0.3% Liquinox concentration is sufficient detergent capacity to go an entire day?

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Posted in Laboratory, Liquinox, Manual Lab Cleaning0 Comments

Removing Polychlorinated Biphenyls (PCBs)

Is Alconox and/or Liquinox an effective detergent for rinsing and removing polychlorinated biphenyls (PCBs) from non-porous surfaces (such as excavation equipment)? We have a great deal of experience with remediating PCBs with both powdered and liquid concentrate detergent options.

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Posted in Alconox, Environmental, Liquinox0 Comments

Cleaning Environmental Equipment for Testing Ammonia Levels

Q. I am doing environmental testing for ammonia levels and need to properly pre-clean all objects that will come into contact with our samples. We were thinking of using Liquinox. Is it ammonia free? Will it interfere with sample results?

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Posted in Environmental, Liquinox0 Comments

Medical Device Cleaning: Soft Acrylic Intraocular Lenses (IOLs)

Q: We are cleaning both hydrophilic and hydrophobic acrylic polymers. The cleaning process we use is mostly manual, involves no extended soaking, rather short contact with rubbing, and/or usage in an ultrasonic bath. Which of your products — Alconox, Tergazyme or Liquinox — would be most suitable for the cleaning of soft acrylic intraocular lenses (IOLs)?

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Posted in Liquinox, Medical Device, Optical0 Comments

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

Alconox Liquinox

Differences between Alconox and Liquinox

Q. Currently using Alconox, but are considering a switch to liquinox. We have seen less residuals with Liquinox, which is desireable. What are the recommendations and concerns with switching from Alconox to Liquinox? What are the difference in ingredients between the two?
A. Alconox and Liquinox are functionally equivalent cleaners, but are not chemically identical. Click to learn more and access the Liquinox and Alconox msds.

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Posted in Alconox, Ask Alconox, Laboratory, Liquinox, Manual Lab Cleaning, Medical Device, Pharmaceutical, Validation0 Comments