79622

Phosphoric acid

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

• 동의어(들): Orthophosphoric acid
• Linear Formula: H₃PO₄
• CAS Number: 7664-38-2
• Molecular Weight: 98.00
• Beilstein: 1921286
• EC Number: 231-633-2
• MDL number: MFCD00011340
• UNSPSC 코드: 12352106
• PubChem Substance ID: 329768533
• NACRES: NA.21

속성

• vapor density: 3.4 (vs air)
• Quality Level: 200
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• grade: puriss. p.a.
• 분석: ≥99.0% (T)
• 형태: powder or crystals
• 품질: crystallized
• 불순물: ≤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.)
• 음이온 미량물: chloride (Cl^-): ≤5 mg/kg; nitrate (NO₃^-): ≤5 mg/kg; phosphite, hypophosphite (as H₃PO₃): ≤500 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• 양이온 미량물: 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

설명

일반 설명

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.

애플리케이션

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

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.

기타 정보

Concentrated phosphoric acid is approx. 85% H₃PO₄ (aqueous).

주의사항

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

안전성 정보

• 픽토그램: GHS05,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H290,H302,H314
• 예방조치 성명서: 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 Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable