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.
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Laboratory Cleaning: Alcojet Detergent not Dissolving in Washer
Q. Alcojet is not dispensing/dissolving in my lab washer. Do you know why this would happen?
A. When this happens to customers, the most common cause is putting Alcojet into a wet dispenser cup. The caking effect is made worse if the Alcojet does not immediately dispense before running the washer. This causes the wet Alcojet to sit in the wet detergent dispenser cup, cake up solidly and form a cement. When the wash cycle finally pops the dispenser door, the detergent will not dissolve.
Advanced Cleaning Mechanisms: What are Surfactant Systems?
Q. In your email you mentioned that Solujet and Citrajet have more sophisticated surfactant systems than a competitor’s low foaming washer detergent – could you explain a little bit more what ‘surfactant systems’ are?
A. Absolutely! Surfactants, or Surface Active Agents, are compounds that lower surface tension between particles, such as oil and water. In the oil and water example, a surfactant compound will contain hydrophilic and lipophilic molecules…
How much CIP detergent needed?
Q: We are starting a new bioprocessing facility where we will be cleaning stainless steel tanks via a Clean-In-Place sprayball system? How do I approximate how much detergent I will need? We are considering Alcojet or Solujet, follow by an acidic rinse with Citrajet. Is this a good plan? Any advice? A: A good rule of thumb for tis you need about….
How To Dispose of Alnochromix Cleaner
Q: How do you dispose of Alnochromix cleaner and sulfuric acid mixtures? What kind of container can hold the mixture, and what are the outgasses?
A: Excellent question about what disposal and containers are recommend, and what outgasses are there from an Alnochromix®/sulfuric acid solution. The mixture of Alnochromix and concentrated sulfuric acid forms peroxydisulfuric acid, bisulfate salts, and persulfate salts along, which will be present with sulfuric acid. The mixture will outgas sulfur dioxide and oxygen when oxidizing organic residues. This is why you want to store in a vented container. Vent caps are available at Alconox.com in the shop.
