Tetrasodium Pyrophosphate → Calcium pyrophosphate (Ca2P2O7)

HRID 659916

Reaction equation

HRID 659916 reaction equation
[Cl-].[Ca+2:2].[Cl-].[O-:4][P:5]([O:8][P:9]([O-:12])([O-:11])=[O:10])(=[O:7])[O-:6].[Na+].[Na+].[Na+].[Na+]>>[O-:6][P:5]([O:8][P:9]([O-:12])([O-:11])=[O:10])(=[O:4])[O-:7].[Ca+2:2].[Ca+2:2]

Participants

3

Procedure

However, when 150 mM calcium chloride solution and 75 mM tetrasodium pyrophosphate solution, both adjusted to pH 7, were used to form the initial mixture, very small fibrous calcium pyrophosphate particles with a diameter of about 1 to 3 microns were formed. Similar results were obtained when 75 mM calcium chloride solution and 37.5 mM tetrasodium pyrophosphate solution were used to form the initial mixture.

Sources & evidence

ORD record
ord-a307b0d09753410ea32c240514b569b5
Source dataset
uspto-grants-2011_12
Patent number
US08084060B2

Linked notes

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