How to choose detergents for ultrasonic cleaning?

Ultrasonic cleaning detergents play an important role in the ultrasonic cleaning process by helping to remove contaminants from surfaces that are being cleaned. Ultrasonic cleaning is a process that uses high frequency sound waves to create tiny bubbles in a liquid, which then collapse to create intense pressure and turbulence. This process is known as cavitation, and it is highly effective at removing dirt, grime, and other contaminants from surfaces.

However, cavitation alone is not enough to remove all types of contaminants, especially those that are greasy, oily, or sticky. This is where ultrasonic cleaning detergents come in. These detergents are specially formulated to help break down and emulsify these types of contaminants, making them easier to remove from the surface being cleaned.

The ultrasonic cleaning detergent works by reducing the surface tension of the liquid, which allows it to penetrate more easily into the small crevices and pores of the object being cleaned. The detergent also contains surfactants, which help to lift and dislodge dirt and other contaminants from the surface.

Overall, ultrasonic cleaning detergents are an essential component of the ultrasonic cleaning process, and they play a critical role in ensuring that objects are thoroughly cleaned and protected from damage.

This post will go over:

Ultrasonic Detergents & Substrates

  • Aluminum: Aluminum is a lightweight and durable metal used in many industrial applications.  Ultrasonic cleaners can effectively remove dirt, grease, and other contaminants from aluminum.  Should not be cleaned in lower frequency ultrasonics (25 kHz) or high alkaline solutions or high caustic solutions.
  • Copper: Copper is a highly conductive metal used in wiring, electronic, and plumbing.  Ultrasonic cleaners can effectively clean copper.
  • Stainless Steel: This is a popular metal used in industrial items.  Ultrasonic cleaners can effectively remove dirt, grease, and other contaminants from stainless steel.
  • Steel: Cleaning steel in an ultrasonic cleaner is an effective method to remove dirt, grease, and other contaminants.

It’s important to note that some metals may require special cleaning solutions or precautions when using an ultrasonic cleaner.  For example, some metals may be prone to oxidation or corrosion, or may be sensitive to certain chemicals.  It’s always best to consult the manufacturer’s instructions or seek the advice of a professional before cleaning any metal in an ultrasonic cleaner.

Key factors for choosing detergents for ultrasonic cleaning

When choosing an ultrasonic cleaning detergent, there are several factors to consider to ensure you select the right detergent for your specific cleaning application.

Here are some key factors to consider:

  1. Type of soil: The type of soil you are trying to clean off your parts will impact the type of detergent you choose. For example, if you are cleaning oily or greasy parts, you will need a detergent that is formulated to emulsify oils and grease.
  2. Material of parts: The material of the parts being cleaned will also impact your choice of detergent. Some materials are more sensitive to certain detergents than others. For example, if you are cleaning delicate or sensitive materials like electronics, you will need a detergent that is gentle and non-corrosive.
  3. Concentration: The concentration of the detergent is also an important factor. Some detergents need to be mixed with water to a specific concentration to work effectively. Make sure you follow the manufacturer’s instructions when mixing the detergent.
  4. Temperature: Some detergents work better at specific temperatures. Make sure you choose a detergent that is compatible with the temperature of your ultrasonic cleaning systems.
  5. pH level: The pH level of the detergent is important to consider. Some detergents are acidic, while others are alkaline. Choose a detergent that is compatible with the pH level of the soil you are trying to remove.
  6. Environmental impact: Consider the environmental impact of the detergent you choose. Some detergents are biodegradable and environmentally friendly, while others are not.

Overall, it’s important to choose an ultrasonic cleaning detergent that is specifically formulated for your cleaning application. Consult with the manufacturer of your ultrasonic cleaning system or the detergent manufacturer for guidance on the best detergent to use for your specific cleaning needs.  The experts at Chautauqua Chemicals Co., Inc. will be happy to recommend.

Acid vs Alkaline vs High Caustic solutions

Alkaline and acid detergents are two different types of cleaning solutions that are often used in ultrasonic cleaning. The main difference between these detergents lies in their pH level and chemical composition, which can affect their cleaning performance and suitability for different types of cleaning applications.

Alkaline

  • Alkaline detergents are so named because they have a high pH, typically in the range of 8 to 14. This high pH makes them effective at breaking down and emulsifying oils and greases, which are typically not soluble in water. Alkaline detergents work by using a combination of chemical and physical processes to remove contaminants from surfaces. The chemical action of the detergent breaks down the oil and grease, while the physical action of the ultrasonic waves creates microscopic cavitation bubbles that can penetrate into tiny crevices and dislodge particles.

Acid

  • Acid detergents typically have a pH level of less than 7, which makes them effective for removing mineral deposits, rust, and other types of stubborn stains and contaminants that are difficult to remove with alkaline detergents. They are often used in applications such as cleaning metal parts, removing rust from steel surfaces, and descaling pipes and other industrial equipment.

High Caustic Cleaners

  • High caustic cleaners are very strong alkaline solutions, typically containing sodium or potassium hydroxide. These cleaners are highly effective at removing heavy and stubborn soils, such as grease, oil, carbon deposits, and rust, from a variety of metals and other materials. However, high caustic cleaners are also highly reactive and can be hazardous to handle, particularly if they come into contact with skin or eyes.

In ultrasonic cleaning, the choice of detergent will depend on the specific cleaning requirements of the application.  It’s important to select the right detergent and ultrasonic cleaning parameters to achieve the best cleaning results for your specific application.

Want to know more about detergents for ultrasonic cleaners? Contact the specialists at our equipment division, Miraclean Cleaning Systems, or our chemical division, Chautauqua Chemicals Co., Inc. or find out more at 716-763-4114 or email us at info@cchemco.com.