Definitions
from The Century Dictionary.
- Formed by heating phosphoric acid: noting an acid (H4P2O7) produced by exposing concentrated phosphoric acid to a temperature of 415° F.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Chem.) Pertaining to, or designating, an acid, H4P2O7, which is obtained as a white crystalline substance. Its salts are obtained by heating the phosphates.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective of, or relating to
pyrophosphoric acid or its derivatives
Etymologies
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Examples
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On heating orthophosphoric acid to about 225° pyrophosphoric acid is formed in accordance with the following equation:
An Elementary Study of Chemistry William McPherson
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While the secondary phosphates, on heating, give salts of pyrophosphoric acid, the primary phosphates yield salts of metaphosphoric acid.
An Elementary Study of Chemistry William McPherson
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P_ {2} O_ {5} + 2H_ {2} O = H_ {4} P_ {2} O_ {7} (pyrophosphoric acid).
An Elementary Study of Chemistry William McPherson
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