Didecyl Dimethyl Ammonium Chloride (DiDAC) is a quaternary ammonium compound commonly used as a biocide, surfactant, and disinfectant in various industrial applications. Its features two long-chain aliphatic groups, making it effective in reducing surface tension and exhibiting antimicrobial properties.

DiDAC is widely used for its effectiveness against a broad spectrum of bacteria, fungi, and viruses. It is commonly found in products for water treatment, industrial cleaning, and as a preservative in various formulation surface Active Agent.

Due to its surfactant properties, DiDAC is utilized in formulations for personal care products, including shampoos and conditioners, where it helps to emulsify and stabilize mixtures .

In the oil and gas industry, DiDAC is employed as a corrosion inhibitor and biocide in drilling fluids. Its ability to control microbial growth helps prevent issues related to biofouling and corrosion.

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