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Dihexadecyl Dimethyl Ammonium Chloride (D1621) CAS number: 1812-53-9
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Dihexadecyl Dimethyl Ammonium Chloride (D1621) CAS number: 1812-53-9

Chemical name: Dihexadecyl Dimethyl Ammonium Chloride (DHDAC)
Other name: Bis(hexadecyl)dimethylammonium chloride Di-n-hexadecyl dimethyl ammonium chloride Dicetyl dimethyl ammonium chloride
Molecular formula: C34H72ClN
Molecular weight: 529.47g/mol
CAS number: 1812-53-9
Availability:
Quantity:
  • 1812-53-9


>> Product Introduce

Dihexadecyl Dimethyl Ammonium Chloride is a high-performance cationic surfactant with long hydrophobic chains (C16), typically appearing as a white to pale yellow waxy solid or flake. Due to its extended alkyl structure, it exhibits strong surface adsorption capacity, excellent film-forming properties, and enhanced persistence in applications. It has good solubility in hot water or organic solvents, and demonstrates broad-spectrum antimicrobial activity, long-lasting softening effects, and superior antistatic performance. Its long chains enable strong binding to negatively charged surfaces (e.g., fibers, metals), making it ideal for scenarios requiring sustained efficacy.


>> Main Uses

  • Main Uses:Functions as a high-efficiency long-acting bactericide, durable fabric softener, persistent antistatic agent, emulsifier, and surface antimicrobial modifier.

  • Usage Scenarios:Widely applied in the textile industry for softening heavy fabrics (e.g., cotton, wool) and enhancing long-term antistatic properties in industrial water treatment for controlling biofilm and microbial growth in high-temperature or low-flow systems in coatings and paints as an antimicrobial additive to prevent mold and bacterial degradation in personal care products (e.g., hair conditioners, body lotions) as a conditioning agent for smooth texture in metal processing as a lubricant and corrosion inhibitor and in leather processing for softening and antimicrobial finishing.


>> Technical Specifications

Items

Prescription

Active Matter %

74~76

Appearance 25℃

Light yellow to white paste

Concentration75%/98%/99%

Free amine +HCL amine  <%

2

Solvent %

23~25

PH(1% aqueous solution)

4.0~8.0

(APHA) <

100
Ash Content %<0.03


>> Package and Storage Conditions

  • Packaged in lBC tanks or blue plastic drums.

  • Store in a sealed container in a cool, dry place.

  • Keep away from fire sources and oxidants.

  • Avoid high temperatures and humid environments to prevent caking due tomoisture absorption.


Research and Production Center: Jiangsu Shanli New Materials Technology Co., Ltd.

Global Trade and Services: Shanghai Shanli Jinghe Chemical Co., Ltd.

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