MadSci Network: Chemistry

Re: what can I use to adjust the pH from 5.65 to 6.5?

Date: Fri May 14 15:02:07 1999
Posted By: Charlie Crutchfield, , Retired, Retired
Area of science: Chemistry
ID: 926553743.Ch

I suggest that you add ammonium hydroxide. Add it slowly, dropwise, with 
vigorous stirring, and monitor the pH during this.

The ammonia will form the Zinc diammine complex which will retard the 
precipitation of the Zn hydroxide, and will also increase the pH.

                                 Charlie Crutchfield

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