Description

Dihydroxyaluminumsodiumcarbonate CAS NO 539-68-4 is a complex inorganic salt of aluminum, sodium, and carbonate, functioning as a versatile antacid and buffering agent. Its primary commercial value lies in its ability to neutralize gastric acid while minimizing common side effects associated with other aluminum-based compounds, such as constipation. This makes it a critical raw material for the pharmaceutical industry, specifically in the formulation of over-the-counter and prescription antacid medications. Its properties are also leveraged in other industrial sectors requiring pH control and aluminum ion sources.

Application

• Pharmaceutical Antacids: Primary active ingredient in tablets, capsules, and liquid suspensions for the relief of heartburn, acid indigestion, and sour stomach.
• Gastrointestinal Therapeutics: Used in combination therapies for treating peptic ulcers and gastroesophageal reflux disease (GERD).
• Industrial pH Buffer: Acts as a buffering agent in chemical processes requiring controlled, mild alkaline conditions.
• Aluminum Source: Serves as a precursor or intermediate in the synthesis of other specialty aluminum compounds.
• Personal Care Products: Utilized in select formulations, such as deodorants, for its astringent and buffering properties.
• Veterinary Medicine: Incorporated into animal health products for digestive upset treatment.

Basic Information

Product Name	Dihydroxyaluminumsodiumcarbonate
CAS No.	539-68-4
Molecular Formula	NaAl(OH)2CO3 or NaAlCO3(OH)2
Molecular Weight	144.00 g/mol (approx.)
Synonyms	Aluminum Sodium Carbonate Hydroxide; Sodium Aluminum Carbonate Hydroxide; Basic Aluminum Sodium Carbonate; Dihydroxyaluminum Sodium Carbonate; Antacid DASC; CAS 539-68-4; [Carbonato(2-)]dihydroxyaluminate(1-) sodium
EINECS	208-719-5

Quality Control

Our Dihydroxyaluminumsodiumcarbonate is manufactured under strict quality management systems. Each batch is tested to ensure it meets stringent specifications for identity, purity, and performance, aligning with pharmaceutical-grade expectations. A comprehensive Certificate of Analysis (COA) detailing parameters such as assay, impurity profiles, and physical characteristics is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry place at a controlled room temperature (15-25°C). The container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White or almost white powder
Identification (IR)	Conforms to standard
Assay (as NaAlCO3(OH)2)	≥ 98.0 %
pH (Suspension)	7.5 - 8.5
Loss on Drying	≤ 2.0 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.1 %
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.