Pentóxido Di-Fósforo (Phosphorus Pentoxide) 99% - 500 Gr - Sigma
Código: 19875
Phosphorus pentoxide ReagentPlus®, 99%
Sinônimo(s):
Phosphoric anhydride, Phosphorus(V) oxide
Fórmula linear:
P2O5
Número CAS:
Peso molecular:
141.94
Número EC:
ID de substância PubChem:
NACRES:
NA.21
densidade de vapor
4.9 (vs air)
Nível de qualidade
pressão de vapor
1 mmHg ( 384 °C)
10 mmHg ( 238 °C)
linha de produto
ReagentPlus®
Ensaio
99%
forma
powder
pH
1.5 (20 °C, 10 g/L)
pf
340 °C (lit.)
densidade
2.3 g/mL at 25 °C (lit.)
traços de cátion
As: ≤100 mg/kg
Fe: ≤100 mg/kg
heavy metals (as Pb): ≤0.02%
SMILES string
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
InChI key
YWEUIGNSBFLMFL-UHFFFAOYSA-N
Descrição geral
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.[1]
Aplicação
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.[2]
It may be used as one of the reaction components in the synthesis of dichlorine heptoxide (Cl2O7)[3] and transition-metal phosphides (Ni2P, Co2P and MoP).[4] P2O5 supported on alumina can be used for the solvent-free and microwave-assisted preparation of 1, 5-benzodiazepine analogs.[5] P2O5/KX (X = Br, I) reagent system may be used for the transformation of alcohols into the corresponding alkyl iodides and bromides.[6]
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.[7]
-
Aromatic poly(phenylene ether ether ketone)s via direct self-polycondensation of 4-(4′-phenoxyphenoxy)benzoic acids.[8]
-
1,3-1H-dibenzimidazole-benzene by the reaction of isophthalic acid with 1,2-diaminobenzene.[9]
Informações legais
ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC
Pictogramas
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
Classificações de perigo
Eye Dam. 1 - Skin Corr. 1A
Perigos de suplementos
Código de classe de armazenamento
8B - Non-combustible, corrosive hazardous materials
WGK
WGK 1
Ponto de fulgor (ºF)
Not applicable
Ponto de fulgor (ºC)
Not applicable
Equipamento de proteção individual
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges