- Containing two atoms of sodium.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Disodium hydrogen phosphate is ordinary common sodium phosphate.
Why does a solution of disodium hydrogen phosphate react alkaline?
Sodium hydroxide is strongly alkaline, while disodium phosphate is nearly neutral in reaction.