902160

Phosphorus pentoxide

anhydrous, free-flowing, Redi-Dri^™, ReagentPlus^®, 99%

• 동의어(들): Phosphoric anhydride, Phosphorus(V) oxide
• Linear Formula: P₂O₅
• CAS Number: 1314-56-3
• Molecular Weight: 141.94
• UNSPSC 코드: 12352303
• PubChem Substance ID: 24852847
• NACRES: NA.21
• 분석: 99%
• Grade: anhydrous
• 양식: powder

속성

• Grade: anhydrous
• vapor density: 4.9 (vs air)
• vapor pressure: 1 mmHg ( 384 °C); 10 mmHg ( 238 °C)
• 제품 라인: ReagentPlus^®; Redi-Dri^™
• 분석: 99%
• 양식: powder
• 품질: free-flowing
• pH: 1.5 (20 °C, 10 g/L)
• mp: 340 °C (lit.)
• density: 2.3 g/mL at 25 °C (lit.)
• 양이온 미량물: 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

설명

일반 설명

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.

애플리케이션

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.

법적 정보

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

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

안전성 정보

• 픽토그램: GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H314
• 예방조치 성명서: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1A
• 보충제 위험성: EUH014
• Storage Class Code: 8B - Non-combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable