Promote Particle Growth: Add Precipitant Slowly

[higherme]

I found this in a textbook about how to promote particle growth. I'm not really sure what it is talking about:

To promote particle growth:

" add precipitant slowly with vigorous mixing to prevent local, highly supersaturated condition where the stream of precipitant first enter the analyte."


what does that mean?

 

[lkh1986]

Maybe the von Wiemarn ratio? (S-Q)/Q.