- Polyphosphoric acid PPA
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- $3.75 / 1000KG
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2024-04-08
- CAS:8017-16-1
- Min. Order: 100KG
- Purity: 115%116%
- Supply Ability: 20tons per month
- Tetraphosphoric acid
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- $16.00 / 1KG
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2024-01-18
- CAS:8017-16-1
- Min. Order: 1600KG
- Purity: 99%
- Supply Ability: 20T
- Polyphosphoric acid
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- $0.00 / 25KG
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2023-09-07
- CAS:8017-16-1
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 50000KG/month
Related articles - Application of Polyphosphoric acid
- Phosphoric acid appears as a clear colorless liquid or transparent crystalline solid. The pure solid melts at 42.35°C and has ....
- Dec 31，2021
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| | Polyphosphoric acid Basic information |
| | Polyphosphoric acid Chemical Properties |
| Melting point | -20°C | | Boiling point | 550 °C | | density | 2.06 g/mL at 25 °C | | vapor pressure | 2 hPa (20 °C) | | storage temp. | Store below +30°C. | | solubility | Methanol (Soluble), Water (Soluble) | | pka | 0.91[at 20 ℃] | | form | Viscous Liquid | | color | Colorless | | Specific Gravity | 2.06 | | Water Solubility | MAY DECOMPOSE | | Sensitive | Hygroscopic | | Merck | 14,7580 | | Stability: | Stable. Incompatible with strong bases. Hygroscopic. | | CAS DataBase Reference | 8017-16-1(CAS DataBase Reference) | | EPA Substance Registry System | Polyphosphoric acids (8017-16-1) |
| | Polyphosphoric acid Usage And Synthesis |
| Description | Superphosphoric acid is made by
the concentration of regular wet-process acid up to P2O5
concentrations of 78%. Granular polyphosphates suitable
for bulk blending are made by reacting ammonia with
regular wet process acid of 52% P2O5 content and using the
heat of reaction to drive off water to produce a phosphate
melt of 10-43-0, with about 40% of the phosphorus in the
polyphosphate form. These materials are, however, not
suitable for bulk blending due to their “sticky” nature (10). | | Chemical Properties | Viscous, water-white liquid. Water solu-
ble. Does not crystallize on standing; hygroscopic.
The commercial acid is a mixture of orthophos-
phoric acid with pyrophosphoric, triphosphoric, and
higher acids and is sold on the basis of its calcu-
lated content of H3PO4, e.g., 115%. Superphospho-
ric acid is a similar mixture sold at 105% H3PO4.
These acids revert slowly to orthophosphoric acid
on dilution with water. | | Uses | Polyphosphoric Acid is a ligand used as an analytical tool to image nanoparticles through photon emission topography. Used also in the synthesis of pharmaceuticals. | | Uses | Polyphosphoric acid can be used as an analytical reagent in chemical industry and a powerful dehydrating agent for organic synthesis.
It is used in production of acid phosphates and pharmaceuticals.
Intermediate for production of phosphate esters with high mono-ester content.
Polyphosphoric acid can be used as a catalyst during synthesis of dimethyl carbonate from urea and methanol.
It is widely employed as acylation and alkylation reagent in various reactions. It can be used as a catalyst in the synthesis of various aromatic ketones.
It may be used to prepare silica-supported polyphosphoric acid, an easy to handle, reusable heterogeneous catalyst.
Polyphosphoric acid may be used in the synthesis of aromatic sulfones, N-substituted amides and 4-aminobenzophenones.
Used as a catalyst and absorbent of ammonia during the synthesis of dimethyl carbonate (DMC).
Used as a solvent in the synthesis of hyperbranched polybenzoxazoles. | | Uses | Dehydrating, catalytic, and sequestering agents,
for metal treating; many applications where a con-
centrated monooxidizing acid is needed; laboratory
reagent. | | Definition | ChEBI: A polymerized phosphorus oxoacid of general formula HO[PO2OH]nH formed by condensation of orthophosphoric acid molecules and containing a backbone chain consisting of alternating P and O atoms covalent
y bonded together. | | General Description | Polyphosphoric acid (PPA) is widely employed as acylation and alkylation reagent in various reactions. It is a strong mineral acid with excellent dehydrating properties. | | Hazard | Toxic by ingestion; strong irritant. | | Agricultural Uses | Polyphosphoric acid is obtained by heating the wetprocess
phosphoric acid. It contains around 72%
phosphorus (as P2O5) and represents a series of
phosphoric acids containing more than one atom of
phosphorus (such as H4P2O7). The general formula is
Hn+2PnO3n+1. | | Solubility in water | Polyphosphoric acids are miscible with water, hydrolyzing to orthophosphoric acid with the generation of heat. They are insoluble in hydrocarbons and halogenated hydrocarbons. |
| | Polyphosphoric acid Preparation Products And Raw materials |
| Raw materials | Phosphoric acid | | Preparation Products | 5-Aminoindole-->2-(3-CHLORO-4-FLUOROPHENYL)INDOLE-->6-CHLORO-2-(TRIFLUOROMETHYL)QUINOLINE-4-CARBOXYLIC ACID-->3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-->2-(TRIFLUOROMETHYL)-5-METHYLQUINOLINE-4-CARBOXYLIC ACID-->Ziprasidone-->DIPHENYL PHTHALATE-->(5-BROMO-1H-INDOL-2-YL)METHANOL-->Pyrophosphoric acid-->ETHYL 4,6-DICHLORO-3-FORMYL-1H-INDOLE-2-CARBOXYLATE-->3-[1,1'-Biphenyl]-4-yl-1,2,3,4-tetrahydro-1-naphthol-->5-Chloroindole-2-carboxylic acid-->2-(4-ETHOXY-PHENYL)-1H-INDOLE-->Potassium triphosphate-->4-(1H-INDOL-2-YL)-PHENYLAMINE-->4-bromo-2-(trifluoromethyl)quinoline-->5-Bromoindole-2-carboxylic acid-->1H-Pyrazolo[3,4-b]pyridine,3-methyl-(9CI)-->4-Oxo-9,10-dihydro-4H-benzo(4,5)-cyclohepta-(1,2b)thiophene-->2-(4-FLUOROPHENYL)-1H-INDOLE-3-CARBALDEHYDE-->6-Bromo-2,3-dihydro-4H-chromen-4-one-->4-HYDROXY-2-(TRIFLUOROMETHYL)QUINOLINE-->Ethyl 5-Bromoindole-2-carboxylate-->3-(Trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine-->Ethyl 5-chloro-2-indolecarboxylate-->7-Bromoisoquinoline-->2,5-BIS(4-AMINOPHENYL)-1,3,4-OXADIAZOLE-->liquid crystalline heterocyclic polymer-->solid phosphoric acid catalyst T-49-->new scale corrosion inhibitor W-331-->6-(4-FLUOROPHENYL)INDOLE-->2-(4-BROMO-PHENYL)-1H-INDOLE-->Setiptiline-->corrosion and scale inhibitor NJ-213-->corrsion inhibitor SH-1-->prefiiming agent WT-302-1-->prefilming agent-corrosion inhibitor JS-204-->SODIUMSTARCHPHOSPHATE-->cleaning and prefilming agent JC-861-->Zaltoprofen |
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