Description

Metaphosphoric Acid CAS NO 10343-62-1 is a high-purity inorganic acid, recognized for its potent sequestering and acidic properties. This compound is critical for applications requiring a non-volatile acid source with strong metal-chelating capabilities. It serves as an essential reagent and processing aid across the pharmaceutical, food & beverage, and analytical chemistry industries, where precise control and purity are paramount.

Application

• Pharmaceutical Synthesis & Analysis: Used as a stabilizing agent and analytical reagent in drug formulations and quality control testing.
• Food & Beverage Industry: Employed as an acidity regulator, sequestrant, and clarifying agent in products like cheese and beer.
• Analytical Chemistry: Serves as a key component in sample preparation and as a reagent in various titrimetric and colorimetric analyses.
• Dental & Cosmetic Preparations: Utilized in certain oral care and cosmetic products for its mild abrasive and pH-adjusting properties.
• Catalyst & Chemical Intermediate: Acts as a catalyst in organic synthesis and as a precursor for other phosphate derivatives.
• Water Treatment: Functions as a corrosion inhibitor and scale control agent in industrial water systems.
• Metallurgy & Surface Treatment: Used in metal cleaning, polishing, and surface passivation processes.
• Laboratory Research: A fundamental chemical for research in inorganic and materials chemistry.

Basic Information

Item	Detail
Product Name	Metaphosphoric Acid
CAS No.	10343-62-1
Molecular Formula	HPO3
Molecular Weight	79.98 g/mol
Synonyms	Glacial Phosphoric Acid; Hydrogen Metaphosphate; Monophosphoric Acid; Phosphoric Acid, Meta-; Polyphosphoric Acids; Cyclotriphosphoric Acid; HPO3; UN 2834
EINECS	233-707-1

Quality Control

Our Metaphosphoric Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the high standards required for industrial and laboratory use. We provide Certificates of Analysis (COA) with key parameters including assay, clarity of solution, and impurity profiles. Specifications can be aligned with common pharmacopeial or food-grade standards upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking and hydrolysis. Keep away from incompatible materials such as strong bases and organic materials.

Specification

Item	Specification
Appearance	White crystalline solid or glassy lumps
Identification (IR)	Conforms
Assay (as HPO3)	≥ 98.0 %
Clarity of Solution	Clear
Chloride (Cl)	≤ 0.005 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 0.002 %

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