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Merck
CN

433314

Pyrophosphoric acid

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

Key Documents

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Product Name

Pyrophosphoric acid, technical grade

InChI key

XPPKVPWEQAFLFU-UHFFFAOYSA-N

InChI

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

SMILES string

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

grade

technical grade

assay

≥94% (by NaOH, titration)

form

liquid
solid
waxy solid

technique(s)

ion chromatography: suitable

impurities

≥20% H3PO4

Quality Level

200

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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.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1B

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP2262
BCCN4255
BCCN1281
BCCL8208
BCCM6356

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The effects of surface treatments of the substrates on high-quality GaN crystal growth.
Fujimori T, et al.
Journal of Crystal Growth, 372, 73-77 (2013)
Eagleson M.
Concise Encyclopedia Chemistry, 330-330 (1994)
Structural and Electrical Conductivity Properties of a Newly Synthesized 3-Methoxybenzylammonium Cation Diphosphate.
Elboulali A, et al.
Journal of Chemistry, 9(4), 2029-2036 (2012)
Surface modification of calcium hydroxyapatite with pyrophosphoric acid.
Tanaka H, et al.
Journal of Colloid and Interface Science, 269(2), 358-363 (2004)
Persistent luminescent nanoparticles for super-long time in vivo and in situ imaging with repeatable excitation.
Sun M, et al.
Journal of Luminescence, 145, 838-842 (2014)
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