49685

Phosphoric acid

suitable for HPLC, LiChropur^™, 85%

• Synonym(s): Orthophosphoric acid
• Linear Formula: H₃PO₄
• CAS Number: 7664-38-2
• Molecular Weight: 98.00
• Beilstein: 1921286
• MDL number: MFCD00011340

Properties

• vapor density: 3.4 (vs air)
• vapor pressure: 2.2 mmHg ( 20 °C); 5 mmHg ( 25 °C)
• Assay: 85%; 85.0-90.0% (NaOH 1 M, T)
• form: liquid
• quality: LiChropur^™
• technique(s): HPLC: suitable
• bp: 158 °C (lit.)
• mp: ~40 °C (lit.)
• density: 1.680-1.720 g/mL at 20 °C; 1.685 g/mL at 25 °C (lit.)
• λ: neat
• UV absorption: λ: 210 nm A_max: ≤0.07; λ: 220 nm A_max: ≤0.06; λ: 230 nm A_max: ≤0.05; λ: 250 nm A_max: ≤0.04; λ: 500 nm A_max: ≤0.02
• 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

Description

Other Notes

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

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290 - H302 - H314
• Precautionary Statements: P234 - P270 - 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: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable