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Pyrophosphoric acid

Name: Pyrophosphoric acid
Brand: SIGALD

technical grade

Synonym(s):

Diphosphoric acid

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About This Item

Linear Formula:

(HO)₂P(O)OP(O)(OH)₂

CAS Number:

2466-09-3

Molecular Weight:

177.98

NACRES:

NA.21

PubChem Substance ID:

329756333

UNSPSC Code:

12352106

EC Number:

219-574-0

MDL number:

MFCD00011343

Assay:

≥94% (by NaOH, titration)

Form:

liquid, solid, waxy solid

Grade:

technical grade

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Properties

grade

technical grade

Quality Level

200

assay

≥94% (by NaOH, titration)

form

liquid, solid, waxy solid

technique(s)

ion chromatography: suitable

impurities

≥20% H₃PO₄

SMILES string

OP(O)(=O)OP(O)(O)=O

InChI

1S/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6)

InChI key

XPPKVPWEQAFLFU-UHFFFAOYSA-N

Description

Application

Pyrophosphoric acid (diphosphoric acid) may be used in the following processes:

As chemical activator in the preparation of activated carbon from leather waste.
To modify the surface of calcium hydroxyapatite in order to improve the surface functionality.
To modify the surface strontium aluminate nanoparticles potential applications in super-long time in vivo imaging.
Synthesis of bis(diisopropylammonium) dihydrogendiphosphate trihydrate (DIPAP).
Synthesis of novel 3-methoxybenzylammonium cation diphosphate.