Description

Carbonic Acid CAS NO 463-79-6 is a weak, inorganic acid formed in solution when carbon dioxide dissolves in water. It plays a fundamental role in numerous biological and industrial processes, serving as a crucial intermediate in pH buffering systems and chemical synthesis. This compound is essential for manufacturers and researchers in sectors including pharmaceuticals, food and beverage production, and water treatment, where precise control of acidity and carbonation is required.

Application

• Carbonated Beverages: Acts as the primary acidulant and provides the characteristic effervescence in sodas, sparkling waters, and beers.
• Pharmaceutical Buffers: Used in the formulation of injectable drugs, ophthalmic solutions, and dialysis fluids to maintain physiological pH levels.
• Chemical Synthesis: Serves as a reagent and intermediate in the production of carbonates, bicarbonates, and certain polymers.
• Water Treatment & pH Control: Employed to adjust and stabilize pH in municipal water systems, swimming pools, and industrial wastewater.
• Food Preservation: Utilized in modified atmosphere packaging (MAP) to extend the shelf life of perishable goods.
• Fire Suppression: A key component in certain types of fire extinguishers, where it displaces oxygen.
• Laboratory Research: Critical for biochemical assays, cell culture media, and as a standard in analytical chemistry.

Basic Information

Product Name	Carbonic Acid
CAS No.	463-79-6
Molecular Formula	H2CO3
Molecular Weight	62.03 g/mol
Synonyms	Hydrogen Carbonate; Aerial Acid; Dihydrogen Carbonate; Carbon Dioxide Solution; Kohlensäure (German); Acide Carbonique (French); Ácido Carbónico (Spanish); [Note: Exists primarily in equilibrium with dissolved CO2]
EINECS	207-364-8

Quality Control

Our Carbonic Acid solutions are produced and handled under strict quality management protocols. While specifications vary by grade and application (e.g., Food Grade, Technical, Reagent), all products undergo rigorous analytical testing to ensure consistency, purity, and safety. Certificates of Analysis (COA) detailing parameters such as assay, pH, and absence of critical impurities are available upon request for every batch.

Storage

Preserve in a tightly closed container, protected from light. For prepared aqueous solutions, store in sealed, pressure-rated containers at recommended cool temperatures (e.g., 2-8°C) to minimize decomposition and gas loss. Ensure adequate ventilation in storage areas. Shelf life is dependent on concentration, container integrity, and storage conditions.

Specification

Item	Specification
Appearance (Solution)	Clear, colorless liquid
Identification (IR/Titration)	Conforms
Assay (as H2CO3)	Contact for details
pH (at specified concentration)	Contact for details
Heavy Metals (as Pb)	< 10 ppm
Chloride (Cl)	< 50 ppm
Sulfate (SO4)	< 100 ppm

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