Description

Dihydroxyaluminum Sodium Carbonate is a well-defined inorganic coordination compound, also known as aluminum sodium carbonate hydroxide. This material serves as a versatile intermediate and functional additive, valued for its unique combination of aluminum and carbonate chemistry. It is primarily utilized in the pharmaceutical and specialty chemical industries for applications requiring controlled reactivity and buffering capacity. The compound is identified by CAS No. 16482-55-6.

Application

• Pharmaceutical Antacid Formulations: Acts as a key active ingredient in tablets and suspensions for gastric acid neutralization.
• Industrial Catalyst Precursor: Serves as a starting material for synthesizing specialized aluminum-based catalysts.
• Flame Retardant Synergist: Used in polymer composites to enhance fire-resistant properties.
• Ceramic and Glass Processing: Functions as a fluxing agent and source of alumina in specialty glass and ceramic frits.
• Water Treatment Agent: Employed in specific coagulation and phosphate removal processes.
• Paper Coating Additive: Improves brightness, opacity, and printability in high-grade paper production.
• Personal Care Products: Used as a buffering and opacifying agent in certain cosmetic formulations.

Basic Information

Product Name	Dihydroxyaluminum Sodium Carbonate
CAS No.	16482-55-6
Molecular Formula	CH3AlNaO5 (commonly represented as NaAl(OH)2CO3)
Molecular Weight	144.00 g/mol
Synonyms	Aluminum Sodium Carbonate Hydroxide; Sodium Aluminum Carbonate Hydroxide; Basic Aluminum Sodium Carbonate; DASC; Antacid DASC; [Carbonato(2-)]dihydroxyaluminum sodium; Aluminum, (carbonato)dihydroxy-, sodium salt (1:1); EINECS 240-551-4
EINECS	240-551-4

Quality Control

Our Dihydroxyaluminum Sodium Carbonate is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for identity, purity, and performance. We can supply material compliant with pharmaceutical (USP/EP) or technical grade requirements as needed. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place at controlled room temperature (15-25°C). The container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Assay (Al2O3 content)	36.0 - 40.0 %
Assay (Na2O content)	19.0 - 22.0 %
Loss on Drying	≤ 15.0 %
Acid Neutralizing Capacity	≥ 25 mEq/g
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

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