Assertion: crystalline pyrophosphoric acid | /r/CapableOf | comprise step
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Source sentences:
text: A process for forming crystalline pyrophosphoric acid, which comprises the steps of (a) intermixing finely divided pyrophosphoric acid crystals with a first suspension containing as the dispersed phase liquid polyphosphoric acid having a P 0 content of from about 79 to about 81 weight percent to thereby form a seeded suspension; the amount of said pyrophosphoric acid crystals being at least about 5 weight percent, based on the weight of said polyphosphoric acid in said first suspension;