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F922721

Polyphosphoric acid , About 84 , 8017-16-1

Synonym(s):
Polyphosphoric acid;PPA

CAS NO.:8017-16-1

Empirical Formula: (H)n+2.(P)n.(O)3n+1

Molecular Weight:

MDL number: MFCD00084480

EINECS: 232-417-0

Update time: 2022-07-08

PRODUCT 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)
form  Viscous Liquid
pka 0.91[at 20 ℃]
Specific Gravity 2.06
color  Colorless
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)

Description and Uses

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).

Polyphosphoric Acid is a ligand used as an analytical tool to image nanoparticles through photon emission topography. Used also in the synthesis of pharmaceuticals.

Safety

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  34
Safety Statements  45-36/37/39-25-26
RIDADR  3264
WGK Germany  1
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  28092000
Hazardous Substances Data 8017-16-1(Hazardous Substances Data)

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