ChemicalBook CAS DataBase List 8017-16-1

8017-16-1

Name	Polyphosphoric acids
CAS	8017-16-1
EINECS(EC#)	232-417-0
Molecular Formula	(H)n+2.(P)n.(O)3n+1
MDL Number	MFCD00084480

Synonyms

POLYPHOSPHORIC ACID polyphosphoric acids PPA acidepolyphosphorique acidesuperphosphorique condensedphosphoricacid condensedphosphoricacid(non-specificname) phospholeum superphosphoricacid Polyphosphoic Acid Polyphosphoric acid (83% P2O5) PolyphosphoricacidPOviscousliq POLYPHOSPHORIC ACID REAGENT GRADE 115& POLYPHOSPHORIC ACID FOR SYNTHESIS Polyphosphoricacid,ca84%(asphosphoruspentoxide) Phosphoric acids, super-or poly- Polyphosphoric acid, > 84% phosphate (as P2O5), pure POLYPHOSPHORIC ACID , 84% MIN. Polyphosphorsuren Polyphosphoric acid PPA 105% , 115%, 116%

Chemical Properties

Appearance	liquid
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)
form	Viscous Liquid
pka	0.91[at 20 ℃]
color	Colorless
Specific Gravity	2.06
Odor	Odorless
Stability:	Stable. Incompatible with strong bases. Hygroscopic.
Water Solubility	MAY DECOMPOSE
Sensitive	Hygroscopic
Detection Methods	T
Merck	14,7580
InChI	1S/O5P2.H3O4P/c1-2-7-4-3-6(1)5-7;1-5(2,3)4/h;(H3,1,2,3,4)
InChIKey	FVYIVXLIMHNYTD-UHFFFAOYSA-N
SMILES	[P](=O)(O)(O)O.[p]21[o][p]([o][o]2)[o][o]1
Uses	Dehydrating, catalytic, and sequestering agents, for metal treating; many applications where a con- centrated monooxidizing acid is needed; laboratory reagent. less more
CAS DataBase Reference	8017-16-1(CAS DataBase Reference)
EPA Substance Registry System	8017-16-1(EPA Substance)

Safety Data

Symbol(GHS)	GHS05
Signal word	Danger
Hazard statements	H290-H314
Precautionary statements	P234-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes	C
Risk Statements	R34:Causes burns. less more
Safety Statements	S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S25:Avoid contact with eyes . S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . less more
RIDADR	3264
WGK Germany	1
TSCA	Yes
REACH Registrations	Active
HazardClass	8
PackingGroup	III
HS Code	28092000
Storage Class	8A - Combustible corrosive hazardous materials
Hazard Classifications	Eye Dam. 1 Met. Corr. 1 Skin Corr. 1B
Hazardous Substances Data	8017-16-1(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

Chemical Properties

liquid

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.

Hazard

Toxic by ingestion; strong irritant.

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).

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.

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 H_n+2PnO_3n+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.

Material Safety Data Sheet(MSDS)

Well-known Reagent Company Product Information

Supplier

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