Tetraphosphoric acid

[ Density]:
2.06

[ Boiling Point ]:
300ºC

[ Melting Point ]:
16ºC

[ Molecular Formula ]:
(H)n+_2.(P)n_.(O)₃n+₁

[ PSA ]:
81.00000

[ LogP ]:
-5.96

[ Index of Refraction ]:
1.596

[ Stability ]:
Stable. Incompatible with strong bases. Hygroscopic.

[ Water Solubility ]:
MAY DECOMPOSE

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[ Symbol ]:

GHS05

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H314

[ Precautionary Statements ]:
P280-P305 + P351 + P338-P310

[ Hazard Codes ]:
C:Corrosive

[ Risk Phrases ]:
R34

[ Safety Phrases ]:
S25-S36/37/39-S45

[ RIDADR ]:
UN 3264

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
2809209000

[ HS Code ]: 2809209000

Polyphosphoric acid trimethylsilyl ester promoted intramolecular acylation of an olefin by a carboxylic acid: convenient construction of C-18-functionalized delta14-hecogenin acetate.

Org. Lett. 5(22) , 4061-4, (2003)

[reaction: see text]. Polyphosphoric acid trimethylsilyl ester (PPSE)-promoted intramolecular Friedel-Crafts reactions on a nonaromatic carboxylic acid system have been investigated. Studies led to th...

Synthesis and antitubercular evaluation of amidoalkyl dibenzofuranols and 1H-benzo[2,3]benzofuro[4,5-e][1,3]oxazin-3(2H)-ones.

Bioorg. Med. Chem. Lett. 21 , 4316-9, (2011)

A new class of amidoalkyl dibenzofuranols and 1H-benzo[2,3]benzofuro[4,5-e][1,3]oxazin-3(2H)-ones was synthesized in very good yields through polyphosphoric acid supported on silica (PPA-SiO(2)) catal...

Synthesis and insect antifeedant activity of aurones against Spodoptera litura larvae.

J. Agric. Food Chem. 55(3) , 700-5, (2007)

A series of aurones were prepared from various phenols via phenoxy acetic acids and coumaranones and evaluated for insect antifeedant activity against the common cutworm (Spodoptera litura). The natur...

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