30417

Phosphoric acid

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥85%

• Synonym(s): Orthophosphoric acid
• Linear Formula: H₃PO₄
• CAS Number: 7664-38-2
• Molecular Weight: 98.00
• Beilstein/REAXYS Number: 1921286
• EC Number: 231-633-2
• MDL number: MFCD00011340
• UNSPSC Code: 12352106
• PubChem Substance ID: 329753503

Properties

• grade: ACS reagent; puriss. p.a.
• agency: USP/NF; reag. ISO; reag. Ph. Eur.
• vapor density: 3.4 (vs air)
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• assay: ≥85%
• form: liquid
• impurities: reducing impurities, in accordance; residual solvents, in accordance; substances precipitated by ammonia, in accordance; ≤0.001% KMnO₄ red. matter (as O); ≤0.001% heavy metals (as Pb); ≤0.001% in water insoluble matters; ≤0.001% volatile acids (as CH₃COOH)
• bp: 158 °C (lit.)
• mp: ~40 °C (lit.)
• density: 1.685 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤2 mg/kg; fluoride (F^-): ≤1 mg/kg; nitrate (NO₃^-): ≤3 mg/kg; phosphite, hypophosphite (as H₃PO₃): ≤20 mg/kg; phosphite, hypophosphite (as H₃PO₃): in accordance; sulfate (SO₄^2-): ≤30 mg/kg
• cation traces: As: ≤0.5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤1 mg/kg; Co: ≤1 mg/kg; Cr: ≤1 mg/kg; Cu: ≤1 mg/kg; Fe: ≤5 mg/kg; K: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤0.5 mg/kg; Na: ≤20 mg/kg; Ni: ≤1 mg/kg; Pb: ≤1 mg/kg; Sb: ≤2 mg/kg; Zn: ≤2 mg/kg
• SMILES string: OP(O)(O)=O
• suitability: passes test for appearance of solution
• InChI: 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
• InChI key: NBIIXXVUZAFLBC-UHFFFAOYSA-N
• Gene Information: human ... SRC(6714)

Description

Application

• Cooperative Rh/Achiral Phosphoric Acid-Enabled [3+3] Cycloannulation of Carbonyl Ylides with Quinone Monoimines: Synthesis of Benzofused Dioxabicyclo[3.2.1]octane Scaffolds.: This study demonstrates the catalytic role of phosphoric acid in a [3+3] cycloannulation reaction, enabling the efficient synthesis of complex organic scaffolds (Tu et al., 2024).

Other Notes

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

The article number 30417-4X2.5L will be discontinued. Please order the single bottle 30417-2.5L which is physically identical with the same exact specifications.
The article number 30417-4X2.5L-M will be discontinued. Please order the single bottle 30417-2.5L-M which is physically identical with the same exact specifications.
The article number 30417-6X1L will be discontinued. Please order the single bottle 30417-1L which is physically identical with the same exact specifications.
The article number 30417-6X1L-M will be discontinued. Please order the single bottle 30417-1L-M which is physically identical with the same exact specifications.

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H290,H302,H314
• pcodes: P234 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - 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