79609

Phosphorpentoxid

puriss. p.a., ACS reagent, ≥98.0% (T)

• Synonym(e): Phosphor(V)-oxid, Phosphorsäure-anhydrid
• Lineare Formel: P₂O₅
• CAS-Nummer: 1314-56-3
• Molekulargewicht: 141.94
• MDL number: MFCD00148880
• UNSPSC Code: 12352303
• PubChem Substance ID: 24887481
• EC Number: 215-236-1
• NACRES: NA.21
• Assay: ≥98.0% (T)
• Form: powder or crystals

Eigenschaften

• Quality Segment: 200
• vapor density: 4.9 (vs air)
• vapor pressure: 1 mmHg ( 384 °C), 10 mmHg ( 238 °C)
• grade: ACS reagent, puriss. p.a.
• assay: ≥98.0% (T)
• form: powder or crystals
• impurities: ≤0.02% phosphorus trioxide (P₂O₃)
• pH: 1.5 (20 °C, 10 g/L)
• mp: 340 °C (lit.)
• density: 2.3 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤10 mg/kg, nitrate (NO₃^-): ≤5 mg/kg
• cation traces: As: ≤100 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH₄⁺: ≤10 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
• 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

Beschreibung

General description

Phosphorus pentoxide (P₂O₅) is a phosphorous oxide. It participates in Pictet-Gams synthesis. Phosphorus pentoxide supported on alumina has been used for solvent-free and microwave-assisted synthesis of 1, 5-benzodiazepine derivatives.

Application

Phosphorus pentoxide may be used in the synthesis of dichlorine heptoxide (Cl₂O₇).

Sicherheitshinweise

• pictograms: GHS05
• signalword: Danger
• hcodes: H314
• pcodes: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1A
• supp_hazards: EUH014
• Lagerklasse: 8A - Combustible corrosive hazardous materials
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges