214701

Phosphorus pentoxide

ReagentPlus^®, 99%

• Synonim(y): Phosphoric anhydride, Phosphorus(V) oxide
• Wzór liniowy: P₂O₅
• Numer CAS: 1314-56-3
• Masa cząsteczkowa: 141.94
• Numer WE: 215-236-1
• Kod UNSPSC: 12352303
• Identyfikator substancji w PubChem: 24852847
• NACRES: NA.21

Właściwości

• gęstość pary: 4.9 (vs air)
• Poziom jakości: 100
• ciśnienie pary: 1 mmHg ( 384 °C); 10 mmHg ( 238 °C)
• linia produktu: ReagentPlus^®
• Próba: 99%
• Postać: powder
• pH: 1.5 (20 °C, 10 g/L)
• mp: 340 °C (lit.)
• gęstość: 2.3 g/mL at 25 °C (lit.)
• ślady kationów: As: ≤100 mg/kg; Fe: ≤100 mg/kg; heavy metals (as Pb): ≤0.02%
• ciąg SMILES: O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3
• InChI: 1S/O10P4/c1-11-5-12(2)8-13(3,6-11)10-14(4,7-11)9-12
• Klucz InChI: YWEUIGNSBFLMFL-UHFFFAOYSA-N

Opis

Opis ogólny

Phosphorus pentoxide is a deliquescent compound prepared by reacting phosphorus with air. It is a commonly used as dehydrating and condensing agent in organic synthesis.

Zastosowanie

Dehydrating agent used for halogenation with tetrabutylammonium halides.

Process for Producing Halogenated Heteroaryl Compounds

Phosphorus pentachloride has been used for the vaccum distillation of 1-methyl-2-pyrrolidinone (NMP), which was employed as mobile phase in a chromatographic analysis.

It may be used as one of the reaction components in the synthesis of dichlorine heptoxide (Cl₂O₇) and transition-metal phosphides (Ni₂P, Co₂P and MoP). P₂O₅ supported on alumina can be used for the solvent-free and microwave-assisted preparation of 1, 5-benzodiazepine analogs. P₂O₅/KX (X = Br, I) reagent system may be used for the transformation of alcohols into the corresponding alkyl iodides and bromides.

Phosphorus pentoxide/methanesulfonic acid (PPMA) may be used as a condensing agent and solvent for the synthesis of:

• High molecular weight poly(benzoxazole)s via direct polycondensation of aromatic dicarboxylic acids containing phenyl ether structure with 3,3′-dihydroxybenzidine dihydrochloride.
• Aromatic poly(phenylene ether ether ketone)s via direct self-polycondensation of 4-(4′-phenoxyphenoxy)benzoic acids.
• 1,3-1H-dibenzimidazole-benzene by the reaction of isophthalic acid with 1,2-diaminobenzene.

Informacje prawne

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS05
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H314
• Zwroty wskazujące środki ostrożności: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Klasyfikacja zagrożeń: Eye Dam. 1 - Skin Corr. 1A
• Zagrożenia dodatkowe: EUH014
• Kod klasy składowania: 8B - Non-combustible corrosive hazardous materials
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable
• Środki ochrony indywidualnej: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges