[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

pH of RO water.

Hi all,

The pH of RO water will start out near what the
tap water was. The pH of DI water will start out
neutral. After sitting out a while, both will
go to a pH of about 5.5 because of CO2 disolving
into the water. The H2CO3, HCO3- buffer system
ends up being the buffering that naturally occurs
in RO/DI water. 

Joe Sachleben
jsachleb at chemistry_ohio-state.edu

Dr. Joseph R. Sachleben
Research Scientist
Solid-State NMR Facility
Campus Chemical Instrument Center
The Ohio State University
Johnston Laboratory 119
176 W. 18th Ave.
Columbus, OH 43210

phone: (614)292-7424
fax: (614)292-
email: jsachleb at chemistry_ohio-state.edu