1.00573

ortho-Phosphoric acid

85%, for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

• Synonym(s): Phosphoric acid, o-Phosphoric acid, Orthophosphoric acid, Orthophosphoric acid
• Linear Formula: H₃PO₄
• CAS Number: 7664-38-2
• Molecular Weight: 98.00
• Beilstein/REAXYS Number: 1921286
• MDL number: MFCD00011340
• UNSPSC Code: 12352301
• NACRES: NA.21

Properties

• Product Name: ortho-Phosphoric acid 85%, for analysis EMSURE^® ACS,ISO,Reag. Ph Eur
• grade: ACS reagent
• Quality Level: 300
• agency: reag. ISO; reag. Ph. Eur.
• vapor density: 3.4 (vs air)
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• product line: EMSURE^®
• form: liquid
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• concentration: 85% phosphoric acid
• impurities: ≤0.5 ppm As (Arsenic); ≤0.5 ppm Cd (Cadmium); ≤0.5 ppm Co (Cobalt); ≤0.5 ppm Cu (Copper); ≤0.5 ppm Mn (Manganese); ≤0.5 ppm Pb (Lead); ≤1 ppm Fluoride (F); ≤1.0 ppm Ni (Nickel); ≤10 ppm Fe (Iron); ≤10 ppm Heavy metals (as Pb); ≤10 ppm Insoluble matter; ≤10 ppm Substances reducing potassium permanganate (as O); ≤10 ppm Volatile acids (as Acetic acid); ≤2 ppm Chloride (Cl); ≤2 ppm Zn (Zinc); ≤20 ppm Ca (Calcium); ≤20 ppm Phosphite and Hypophosphite (as H₃PO₃); ≤20 ppm Sulfate (SO₄); ≤200 ppm Na (Sodium); ≤3 ppm Nitrate (NO₃); ≤5 ppm K (Potassium); ≤5 ppm Mg (Magnesium); ≤5 ppm Sb (Antimony)
• color: APHA: ≤10
• pH: <0.5 (20 °C, 100 g/L in H₂O)
• kinematic viscosity: 30.5 cSt(20 °C)
• bp: 158 °C (lit.)
• mp: ~40 °C (lit.)
• density: 1.685 g/mL at 25 °C (lit.)
• greener alternative category: Enabling
• SMILES string: OP(O)(O)=O
• storage temp.: no temp limit
• InChI: 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
• InChI key: NBIIXXVUZAFLBC-UHFFFAOYSA-N

Description

General description

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for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

Application

ortho-Phosphoric acid can be used as a:

• Reactant in the synthesis of polyurethane ionomer films through etherification with polyoxypropylene glycol in the presence of tertiary amines.
• Catalyst in pinacolic rearrangement reactions when it is supported on silica.
• Phosphorus source in the synthesis of diaryl phosphates.

Analysis Note

Assay (alkalimetric)≥ 85.0 %Identitypasses testAppearance of solutionpasses testColor≤ 10 HazenChloride (Cl)≤ 2 ppmFluoride (F)≤ 1 ppmNitrate (NO₃)≤ 3 ppmPhosphite and Hypophosphite (as H₃PO₃)≤ 20 ppmHypophosphite, phosphitepasses testHeavy metals (as Pb)≤ 10 ppmSulfate (SO₄)≤ 20 ppmAs (Arsenic)≤ 0.5 ppmCa (Calcium)≤ 20 ppmCd (Cadmium)≤ 0.5 ppmCo (Cobalt)≤ 0.5 ppmCu (Copper)≤ 0.5 ppmFe (Iron)≤ 10 ppmK (Potassium)≤ 5 ppmMg (Magnesium)≤ 5 ppmMn (Manganese)≤ 0.5 ppmNa (Sodium)≤ 200 ppmNi (Nickel)≤ 1.0 ppmPb (Lead)≤ 0.5 ppmSb (Antimony)≤ 5 ppmZn (Zinc)≤ 2 ppmMatter precipitated by ammoniapasses testVolatile acids (as Acetic acid)≤ 10 ppmSubstances reducing potassium permanganate (as O)≤ 10 ppmInsoluble matter≤ 10 ppm

Other Notes

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

Legal Information

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

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: 8B - Non-combustible, corrosive hazardous materials
• wgk_germany: WGK 1