Phosphoric Acid 85% LiChropur™ HPLC Grade

Phosphoric Acid, 85%, LiChropur™ Grade, Suitable for HPLC - 500 mL

SKU: 49685-500ML
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For laboratory, institutional, and professional use only. Not available for residential or personal purchase. Orders are subject to verification.

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Phosphoric acid (H₃PO₄), approximately 85% aqueous solution, LiChropur™ grade, suitable for HPLC applications. Manufactured to controlled UV absorbance specifications to support low-background chromatographic detection.

This high-purity acid is commonly used for:

Mobile phase pH adjustment in HPLC

Buffer preparation for reversed-phase LC

Analytical method development

Sample preparation in food, environmental, and regulatory laboratories

Controlled UV absorbance and defined concentration range (85.0–90.0%) ensure reproducible performance in gradient and isocratic chromatography systems.

Designed for laboratories requiring reliable acid modifiers with low UV interference.

Chemical Name: Phosphoric acid
Synonyms: Orthophosphoric acid; o-Phosphoric acid
CAS Number: 7664-38-2
Molecular Formula: H₃PO₄
Molecular Weight: 98.00 g/mol
Concentration: 85% aqueous
Grade: LiChropur™
Form: Liquid
Technique Suitability: HPLC
Primary Uses: Mobile phase modifier, pH adjustment, buffer preparation

SPECIFICATIONS

Phosphoric Acid, 85%, LiChropur™ Grade

Chemical Formula: H₃PO₄

CAS Number: 7664-38-2

Molecular Weight: 98.00 g/mol

Assay: 85%, 85.0–90.0% (NaOH 1 M, titration)

Form: Liquid

Quality: LiChropur™

Technique: HPLC suitable

Physical Properties

Boiling Point: 158 °C (lit.)

Vapor Density: 3.4 (vs air)

Vapor Pressure: 2.2 mmHg at 20 °C

Density: 1.680–1.720 g/mL at 20 °C; 1.685 g/mL at 25 °C (lit.)

UV Absorbance Maximum

210 nm: ≤0.07

220 nm: ≤0.06

230 nm: ≤0.05

250 nm: ≤0.04

500 nm: ≤0.02

Chemical Identifiers

Beilstein/REAXYS Number: 1921286

MDL Number: MFCD00011340

InChI: 1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

InChI Key: NBIIXXVUZAFLBC-UHFFFAOYSA-N

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