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Merck
CN

398608

Polyphosphoric acid

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~105% H3PO4 basis

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About This Item

Linear Formula:
Hn+2PnO3n+1
CAS Number:
8017-16-1
UNSPSC Code:
12352106
eCl@ss:
38070203
EC Number:
232-417-0
NACRES:
NA.21
MDL number:
MFCD00084480
Assay:
~105% H3PO4 basis
Form:
viscous liquid

Key Documents

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SMILES string

[P](=O)(O)(O)O.[p]21[o][p]([o][o]2)[o][o]1

InChI

1S/O5P2.H3O4P/c1-2-7-4-3-6(1)5-7;1-5(2,3)4/h;(H3,1,2,3,4)

InChI key

FVYIVXLIMHNYTD-UHFFFAOYSA-N

assay

~105% H3PO4 basis

form

viscous liquid

Quality Level

100

greener alternative product characteristics

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bp

300 °C (lit.)

mp

16 °C

density

1.9 g/mL at 25 °C

greener alternative category

Aligned

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General description

Polyphosphoric acid is a hygroscopic, clear and viscous liquid. It has been synthesized by reacting phosphoric acid with phosphorus (V) oxide. It is a moderately strong mineral acid with a wide range of applications. PPA may be used in bone regeneration by treating titanium (Ti) implants.

Application

Polyphosphoric acid may be used in the following processes:
  • Functionalize mesoporous silica–polymer nanocomposites (SBA/PS).
  • As a catalyst in the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones.
  • As a dehydrating agent and phosphorus source in the synthesis of Si, P co-doped carbon (SiPDC) materials.
  • As a catalyst and absorbent of ammonia during the synthesis of dimethyl carbonate (DMC).
  • As a solvent in the synthesis of hyperbranched polybenzoxazoles (HBPBOs).

Features and Benefits

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Click here for more information.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKDB1362
MKCZ0728
MKCZ0737
MKCT7942
MKCS2791

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Polyphosphoric Acid
Dodd JH.<BR/>
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2001)
Synthesis of hyperbranched polybenzoxazoles and their molecular composites with epoxy resins.
Wu J, et al.
Journal of Applied Polymer Science, 132(18) (2015)
Polyphosphoric acid catalyst for the one-pot synthesis of 3, 4-dihydropyrimidin-2 (1H)-ones by grinding under solvent-free conditions.
Zhao Y, et al.
Indian J. Chem. B, 54(1), 139-141 (2015)
Mesoporous silica polymer nanocomposites encapsulated with polyphosphoric acid for the synthesis of ?-amino carbonyl compounds under environmental benign conditions.
Sachdev D, et al.
New. J. Chem., 39(4), 2633-2641 (2015)
Novel tannin-based Si, P co-doped carbon for supercapacitor applications.
Ramasahayam SK, et al.
Journal of Power Sources, 275, 835-844 (2015)
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