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[A mukherjee]

Hii everyone,
Can any one tell me what are the differences between foam & froth?

[Crunchie]

Foam and froth regime are extremely similar in distillation especially on sieve trays.

Froth regime is a continuous phase of liquid that sits on the tray, the vapor is then dispersed as bubbles within the liquid form below the tray.

Foam is just a higher velocity of liquid and vapor causing a more volitile reaction.

Think of it as fairy liquid the more you add and the quicker you stir the foamier it becomes.

Hope this helps

David