Laboratory Cleaning – Residue on Beakers
Q. We have a yellowish color on some of our beakers (even after washing at 150 deg F). It looks like it is scale build up. Are we using the right detergent, we have tried alconox powder & Liquinox. Do you think we need a detergent that is more acidic? This is our first time using an ultrasonic machine. We are trying to find the best produce for our application. Do we need to wash longer or at a higher concentration.
A. It is possible there is some kind of inorganic yellowish scale that is not being removed by the Alconox or Liquinox detergents. We recommend… Read the Full Story.
Cleaning Glassware for Silver Staining
Q: I am looking for an alternative for cleaning glassware. I am going to perform a staining procedure using ammoniacal silver (diamine silver) and another one using silver nitrate. The protocols are very specific about using “chemically clean glassware”, but…
Laboratory Cleaning: Oil Samples
Q. We work with oil samples so it is necesary to get a good cleaner for this kind of material.
A. For manual cleaning of glass and metal sampling equipment and labware, use a warm or hot 1% Liquinox solution (10 mL/L or 1.25 oz/gal) followed by a thorough warm or hot rinse. Learn More.
Cleaning liver residue off of glassware wells
Q. How do I clean liver residues on glassware wells?
A. Cleaning glassware wells with liver residues, rich in proteins that can cross-link, can be very difficult. To clean liver residues, we recommend you soak the glassware wells in a warm (110-130 deg F maximum) 1% Tergazyme solution (10 g/L or 1.25 oz/gal). Rinse thoroughly. Try to minimize… Read More.
Density of Alconox Detergent
Q. Do you have the density of the Alconox detergent?
A. Thanks for your request for Alconox density. Alconox is a hygroscopic dry blended powder with a density that varies with settling and humidity. The density of Alconox varies from 0.85 g/mL to 1.1 g/mL, with a typical density of 0.95 g/mL.
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