Description

Phosphoric Acid Reagent ~20% In Ethanol is a specialized analytical-grade solution, prepared by dissolving high-purity phosphoric acid in anhydrous ethanol to an approximate concentration of 20% (w/w). This formulation is critical for applications requiring the acidic properties of phosphoric acid in a non-aqueous, organic solvent matrix, offering distinct solubility and reaction characteristics. It is an essential reagent for research, quality control, and synthesis in the pharmaceutical, chemical, and material science industries.

Application

• Analytical Chemistry: Used as a mobile phase modifier or derivatization agent in non-aqueous chromatography (HPLC, GC).
• Pharmaceutical Synthesis: Acts as a catalyst or acidic reagent in esterification and other organic synthesis reactions conducted in ethanol-based systems.
• Material Science: Employed in the surface treatment or etching of specific materials where aqueous acids are unsuitable.
• Laboratory Research: Serves as a standardized acid reagent in titrations and chemical analyses for non-aqueous or ethanol-soluble samples.
• Specialty Chemical Manufacturing: A key intermediate or processing aid in the production of ethanol-soluble phosphates or other organophosphorus compounds.

Basic Information

Product Name	Phosphoric Acid Reagent ~20% In Ethanol
CAS No.	144447-69-8
Molecular Formula	H₃PO₄ (in C₂H₅OH)
Molecular Weight	98.00 g/mol (H₃PO₄)
Synonyms	Orthophosphoric Acid in Ethanol; Ethanolic Phosphoric Acid Solution; Phosphoric Acid Ethanol Solution; 20% Phosphoric Acid in EtOH; Phosphoric Acid Reagent Grade in Ethyl Alcohol; H3PO4 in Ethanol; Solvent-based Phosphoric Acid Reagent
EINECS	Contact for details

Quality Control

Our Phosphoric Acid Reagent ~20% In Ethanol is manufactured under strict quality management systems. Each batch is tested to ensure it meets stringent specifications for identity, assay, and purity relevant to reagent-grade chemicals. Certificates of Analysis (COA) documenting specific results for concentration, residual water, and related impurities are available upon request to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flames. Due to its nature as a strong acid/organic solvent mixture, ensure containers are clearly labeled and stored separately from incompatible materials such as bases and oxidizers.

Specification

Item	Specification
Appearance	Clear, colorless solution
Identification (IR)	Conforms
Assay (H₃PO₄)	19.0% - 21.0% (w/w)
Water Content (KF)	≤ 1.0%
Ethanol Content	Balance
Residue on Ignition	≤ 0.05%
Chloride (Cl)	≤ 0.001%
Sulfate (SO₄)	≤ 0.005%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.