79622

Ácido fosfórico

puriss. p.a., crystallized, ≥99.0% (T)

• Sinónimos: Ácido ortofosfórico
• Fórmula lineal: H₃PO₄
• Número de CAS: 7664-38-2
• Peso molecular: 98.00
• Beilstein/REAXYS Number: 1921286
• EC Number: 231-633-2
• MDL number: MFCD00011340
• UNSPSC Code: 12352106
• PubChem Substance ID: 329768533
• NACRES: NA.21

Propiedades

• vapor density: 3.4 (vs air)
• Quality Level: 200
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• grade: puriss. p.a.
• assay: ≥99.0% (T)
• form: powder or crystals
• quality: crystallized
• impurities: ≤0.002% KMnO₄-reducing matter (as O)
• bp: 158 °C (lit.)
• mp: ~40 °C (lit.); ~40 °C
• solubility: water: 850 g/L at 20 °C
• density: 1.685 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤5 mg/kg; nitrate (NO₃^-): ≤5 mg/kg; phosphite, hypophosphite (as H₃PO₃): ≤500 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• cation traces: As: ≤1 mg/kg; Ca: ≤10 mg/kg; Cd: ≤1 mg/kg; Co: ≤1 mg/kg; Cr: ≤1 mg/kg; Cu: ≤1 mg/kg; Fe: ≤10 mg/kg; K: ≤5 mg/kg; Mg: ≤1 mg/kg; Mn: ≤1 mg/kg; Na: ≤50 mg/kg; Ni: ≤1 mg/kg; Pb: ≤1 mg/kg; Zn: ≤1 mg/kg
• SMILES string: OP(O)(O)=O
• InChI: 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
• InChI key: NBIIXXVUZAFLBC-UHFFFAOYSA-N

Descripción

General description

Phosphoric acid (H₃PO₄) is also known as orthophosphoric acid. It serves as an intermediary or reagent in various manufacturing processes. Phosphoric acid is found in fertilizers, detergents, and other household cleaning products.

The product is crystalline phosphoric acid.

Application

Phosphoric acid has been employed as an oxidation reagent in a study.1 It may be used in the preparation of ammonium phosphate.[1]

Phosphoric acid is used:

• As a catalyst in the nucleophilic addition to imines.
• In the synthesis of porous phosphoric acid-based geopolymers.
• In the synthesis of mono-alkyl phosphates from simple aliphatic alcohols in the presence of acetic anhydride activator.

Other Notes

El ácido fosfórico concentrado es aproximadamente H₃PO₄ (acuoso) al 85%.

Caution

product may become solid, becomes liquid on heating to 50°C

Información de seguridad

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H290,H302,H314
• pcodes: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
• Storage Class: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable