Description

Didecyldimethylammonium chloride is a quaternary ammonium compound (quat) widely recognized for its potent antimicrobial and surfactant properties. This versatile chemical is a critical component in formulating effective disinfectants, sanitizers, and biocides for industrial and institutional use. Key industries that rely on this compound include water treatment, agriculture, textiles, and the manufacture of cleaning and personal care products, where its stability and broad-spectrum efficacy are highly valued.

Application

• Industrial & Institutional Disinfectants: A primary active ingredient in formulations for surface sanitization in hospitals, food processing plants, and public facilities.
• Algaecides & Biocides in Water Treatment: Used in cooling towers, swimming pools, and industrial water systems to control microbial and algal growth.
• Agricultural Applications: Employed as a disinfectant for animal housing, equipment, and in certain pesticide formulations.
• Textile & Leather Processing: Acts as a softener, antistatic agent, and biocide to protect fabrics and hides.
• Personal Care & Cosmetics: Used as a preservative and antimicrobial agent in products like shampoos and lotions (subject to regional regulations and concentration limits).
• Oilfield & Industrial Process Biocide: Controls sulfate-reducing bacteria and other microbes in drilling fluids, pipelines, and fuel systems.
• Household & Commercial Cleaning Products: A key ingredient in all-purpose cleaners, bathroom cleaners, and sanitizing wipes.

Basic Information

Product Name	Didecyldimethylammonium Chloride
CAS No.	73-51-5
Molecular Formula	C22H48ClN
Molecular Weight	362.08 g/mol
Synonyms	Didecyl Dimethyl Ammonium Chloride; DDAC; Didecyldimonium Chloride; Quaternium-12; N,N-Dimethyldidecylammonium Chloride; Didecyl Dimethyl Quaternary Ammonium Chloride; Didecyl Methyl Ammonium Chloride; BAC (Broadly for Alkyl Dimethyl Benzyl Ammonium Chloride mixtures, but often includes DDAC)
EINECS	200-806-8

Quality Control

Our Didecyldimethylammonium chloride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, active content, and impurity profiles. Certificates of Analysis (COA) documenting key parameters such as assay, water content, and residue on ignition are provided with every shipment. We adhere to relevant industry standards and can support compliance requirements for global markets.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture which can lead to caking or reduced efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or waxy solid
Identification (IR)	Conforms
Assay (Active Matter)	≥ 80.0 %
Water Content	≤ 20.0 %
pH (10% solution)	6.0 - 8.0
Residue on Ignition	≤ 0.5 %

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