Description

Aluminum Citrate CAS NO 31142-56-0 is a coordination complex formed from aluminum and citric acid, known for its role as a versatile chelating and cross-linking agent. This compound is valued for its ability to bind metal ions and modify the properties of materials, offering solutions for stability and performance enhancement. It serves critical functions in industries ranging from pharmaceuticals and personal care to water treatment and materials science, where precise chemical control is required.

Application

• Pharmaceutical Antiperspirant Agent: A key active ingredient in clinical-strength antiperspirant formulations, where it acts as an astringent to control perspiration.
• Cross-linking Agent for Polymers: Used to modify and strengthen polymer matrices in materials science and industrial resin production.
• Water Treatment Coagulant Aid: Employed in conjunction with primary coagulants to improve flocculation and removal of suspended solids and phosphates.
• Chelating Agent in Personal Care: Functions as a stabilizer and buffering agent in creams, lotions, and other cosmetic products.
• Catalyst and Reagent in Organic Synthesis: Facilitates specific chemical reactions in the synthesis of fine chemicals and pharmaceutical intermediates.
• Additive in Ceramic and Cement Formulations: Modifies setting times and improves the physical properties of specialty construction materials.

Basic Information

Product Name	Aluminum Citrate
CAS No.	31142-56-0
Molecular Formula	Typically C6H5AlO7 (for basic form)
Molecular Weight	Approx. 216.08 g/mol (for basic form)
Synonyms	Aluminum Citrate Tribasic; Citric Acid, Aluminum Salt; Aluminum Citrate (1:1); Aluminum Citrate Basic; Aluminium Citrate; Tris(aluminum) citrate; Citraluma; Alcide
EINECS	Contact for details

Quality Control

Our Aluminum Citrate is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. The product is tested against rigorous in-house specifications for parameters including assay, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, heavy metal content, and other critical attributes is provided with each shipment to support your quality assurance protocols.

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 affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Al2O3 content)	Contact for details
Purity (by Titration)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
pH (5% solution)	Contact for details

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