Influence of concentration of substances used in ultrasonic cleaning in alkaline solutions on cavitation intensity

Cavitation intensity vs. temperature of aqueous solutions of three substances most frequently used in ultrasonic cleaning: sodium carbonate, metasilicate and phosphate were measured. Shapes of cavitation – temperature curves for 0–10% solutions during heating and cooling in the 20–70 °C temperature range were compared. Maximal cavitation intensity curves for these solutions at 60 °C (most frequently used temperature of ultrasonic cleaning in aqueous solutions), in identical conditions and at various ultrasound frequencies are presented as diagrams.