General Disinfectant BKC4 (Skin/Household) is a water-based disinfectant concentrate designed for rinse-off personal-care systems and household cleaning applications that need practical antimicrobial performance from benzalkonium chloride in an easy-to-dilute liquid format.

The product is positioned for formulators who want a ready-to-use antimicrobial base that can fit hand wash, liquid soap, cleanser, deodorizing wash systems, hard-surface cleaners, and floor-cleaning concentrates without having to build a quaternary ammonium system from scratch.

This concentrate contains 4.0% benzalkonium chloride in the sold product, so the in-formula calculation is straightforward: every 1.0% addition contributes about 0.04% benzalkonium chloride in the finished product or in-use dilution. That makes it practical to target mild-to-moderate microbial-control systems while keeping the dilution math simple during development.

Product Description: Benzalkonium chloride is a cationic quaternary ammonium antimicrobial that supports microbial control by disrupting microbial membranes and reducing viable contamination in appropriately designed aqueous systems. In this format, the antimicrobial phase is supported by wetting/cleansing components that improve spreading and contact on skin-contact rinse-off systems and hard surfaces, so the product can bridge personal-cleansing and household-cleaning use cases more easily than a simple single-component BKC solution.

From a formulation standpoint, this product is most suitable for water-based systems where the developer wants antimicrobial support together with practical rinsing and cleaning behavior. It is best suited to rinse-off personal-care products and short-contact wash systems rather than leave-on skin products. For household use, it fits floor cleaners, wipe liquids, surface sprays, and general cleaning concentrates where the final active level and contact time are validated by the formulator.

Internal microbial-control benchmarking on the finished formulation found performance equivalent to or better than Dettol at the same in-use concentration. This should be read as internal comparative formulation data, not as a substitute for local disinfectant registration, legal claim substantiation, or use-specific challenge testing in the final customer formula.

Compatibility matters. Because benzalkonium chloride is cationic, high loads of anionic surfactants or anionic polymers can reduce clarity, suppress antimicrobial performance, or cause instability/precipitation. In practice, this means formulators should verify clarity, viscosity, foaming, and performance if the final system contains common anionics. Nonionic and amphoteric-supporting systems are generally the cleaner starting point for development.

Safety framing should remain conservative. For skin-oriented formulas, this product is better treated as a rinse-off or short-contact disinfectant/cleanser component, not as a leave-on active. Avoid positioning for eye-area, oral, mucosal, baby, or broken-skin applications unless the final formula has its own safety and regulatory review.

Usage: Rinse-off personal cleansers, liquid soap, hand wash, deodorizing cleansing systems, hard-surface cleaner, floor cleaner, wipe liquid, and household disinfectant-type concentrates where the final in-use concentration is validated.

Mixing method:

- Add into the water phase or finished aqueous base during the final stage or cool-down. For best handling, keep the batch below 40°C.

- Pre-dilution with water can improve distribution into viscous systems. Stir gently to medium speed to minimize excessive foam.

- Check final compatibility carefully in systems containing anionic surfactants, carbomer-type anionic polymers, or strongly anionic actives. Confirm clarity, viscosity retention, and antimicrobial performance in the real formula.

- A practical working window is around pH 4-9. Avoid pushing the system to strongly incompatible ionic conditions without verification.

Usage rate: 1.0-5.0%

Delivered-active math from this 4.0% BKC concentrate: 1.0% use delivers ~0.04% benzalkonium chloride; 2.5% use delivers ~0.10%; 4.0% use delivers ~0.16%; 5.0% use delivers ~0.20%.

Skin-oriented rinse-off systems: typically 1.0-4.0% in the finished formula. A practical starting point is ~2.5% for about 0.10% benzalkonium chloride active. For skin-contact products, keep 4.0% as a practical upper limit unless the finished formula has stronger safety data.

Household cleaners: typically 1.25-5.0% in the finished formula or in-use dilution, depending on the required cleaning/disinfection intensity and contact time. Direct water-dilution examples: 1 part product + 79 parts water gives ~0.05% BKC active; 1 part product + 39 parts water gives ~0.10%; 1 part product + 19 parts water gives ~0.20%.

Product characteristics: Clear to pale yellow liquid with mild characteristic odor.

Solubility: Soluble in water, glycols, and hydroalcoholic systems. Final compatibility still needs checking in highly anionic formulas.

Storage: Store tightly closed at room temperature, protected from contamination and excessive heat. Keep the container clean and well sealed to preserve consistent antimicrobial performance.