Titration of Boric Acid 91 



that the use of such compounds will enable one to obtain accurate re- 

 sults in the volumetric determination of boric acid. 



2. Accurate titrations of boric acid in the presence of pyrogallol 

 or pyrocatechol seem to be impossible under the conditions described, 

 apparently due to the formation of acidic oxidation products of the 

 organic compounds. 



3. Certain organic acids, although believed to form a complex with 

 boric acid, behave during a titration of the mixture of the two as if 

 the process of neutralization involves two rather distinct steps, first, 

 the organic acid, and second, the boric acid. 



