Cleanroom Cleaning, Disinfection and Sterilization

Quaternary Ammonium Disinfectant

A ready-to-use low-residue quaternary ammonium disinfectant blended with WFI for routine treatment of compatible cleanroom surfaces.

0.037% DDAC formulation supports routine hard-surface sanitizing at a low active concentration
Nonflammable water-based chemistry avoids the vapor and ignition limits of alcohol systems
Capped bulk packaging provides controlled supply for qualified cleanroom wipes and mops

Request a Quote Browse Products

Product Introduction

Quaternary Ammonium Disinfectant is a clear, colorless to pale-yellow ready-to-use solution based on a low concentration of DDAC blended with WFI-quality or purified water. The broad 3.8 L round-shoulder natural HDPE container has a recessed rear-side grip for controlled carrying and pouring without the tall top handle used on a jerrycan. A ribbed double-wall dosing cap and tamper-evident ring protect the threaded neck, while the translucent body shows the remaining liquid level. Capped, double- or triple-bagged formats can feed a qualified mop or wipe system for floors, walls, work surfaces, carts, and equipment exteriors. The surface must remain visibly wet for the labeled time, and compatibility with the preceding detergent, applicator, substrate, and residue-removal method should be established before routine use.

Key Features

Representative 0.037% DDAC ready-to-use formulation

Water for Injection or purified-water blend options

Clear, nonflammable liquid with no alcohol vapor contribution

Low active concentration to limit routine residue accumulation

0.2 micron filtered and sterile-fill configurations

Wide round-shoulder HDPE container with recessed side grip

Ribbed double-wall dosing cap with tamper-evident ring

Double- or triple-bagged cleanroom transfer options

Customer Product Concerns

Quaternary ammonium actives remain on the surface instead of evaporating, so repeated over-application can create a tacky film that attracts particles. Anionic detergent residue may also neutralize a cationic quat, while porous wipes can retain part of the active and change delivery. Correct pre-cleaning chemistry, a compatible low-binding applicator, measured dosing, complete wetting, and a scheduled residue-removal step keep the disinfectant program consistent. Routine quat chemistry is not a substitute for a separately selected sporicidal stage.

Will a nonvolatile quat create sticky residue over time?The low active concentration limits the amount deposited in each correctly dosed cycle. A defined application volume and periodic rinse or residue-removal step with compatible high-grade water prevent repeated over-wetting from building a tacky film.

Can detergent left on the surface reduce activity?Anionic surfactants can interfere with cationic quaternary ammonium compounds. The cleaning sequence should therefore use a verified compatible detergent or include a complete rinse before the disinfectant is applied.

Does the wipe or mop change the delivered concentration?Some fibrous substrates can bind quaternary ammonium active. A low-binding qualified wipe or mop, fixed saturation ratio, and controlled dispensing method help keep the amount transferred to the surface consistent.

How is dilution error avoided for routine cleaning rounds?The ready-to-use formulation removes operator measurement and water-quality variation at the point of use. The capped 3.8 L container can supply a controlled dispensing connector or a dedicated cleanroom applicator without manual concentrate mixing.

Will this disinfectant control bacterial spores?Routine quaternary ammonium chemistry should not be assumed to be sporicidal. The contamination-control program can rotate it with a separately qualified sporicide while retaining the quat for frequent treatment of organisms covered by its local label.

Typical Applications

Routine sanitizing of compatible cleanroom floors and wallsWipe-down of workbenches, carts, and pass-through interiorsExterior treatment of noncritical process equipmentCleaning of isolator, RABS, and biosafety-cabinet support surfacesLarge-area application where a nonflammable chemistry is preferredPharmaceutical and biotechnology controlled production areasMedical-device manufacturing and packaging roomsCosmetics, laboratory, and critical support environments

Technical Parameters

Didecyl dimethyl ammonium chloride is a cationic quaternary ammonium compound that adsorbs to microbial cell surfaces and disrupts membrane function. A representative cleanroom ready-to-use formulation contains 0.037% DDAC in Water for Injection, giving routine surface activity at a much lower nonvolatile-solids level than many traditional quat systems. Cleanroom presentations may be passed through a 0.2 micron filter, sterile filled, and supplied in protected primary packaging. Because efficacy is label-specific, the target organisms, soil condition, application rate, and wet-contact time must follow the selected regional formulation rather than a generic concentration claim.

Core Material	0.037% w/w didecyl dimethyl ammonium chloride blended with Water for Injection or purified water
Panel Thickness	1.0–1.8 mm nominal wall thickness for the broad HDPE container
Effective Width	165–205 mm typical body width for a 3.8 L oval-footprint container
Maximum Length	285–330 mm typical overall height including the closed dosing cap
Steel Facing Thickness	0 mm; polymer primary packaging without steel facing
Core Density	995–1005 kg/m³ typical solution density at 20–25 °C
Thermal Conductivity	Approximately 0.57–0.60 W/(m·K) at 20 °C for the dilute aqueous solution
Surface Finish	Clear, colorless to pale-yellow liquid in a smooth natural semi-translucent HDPE container
Joint Type	Threaded neck with a tamper-evident double-wall dosing cap or closed transfer connector
Customization	Available based on the intended application and operating environment.

Available Options

0.9–1 L closed dispensing bottle3.8–5 L round-shoulder capped HDPE container0.037% DDAC blended with WFI-quality waterAlternative quat active concentration for the destination market0.2 micron filtered preparationSterile-filled or filtered nonsterile presentationTamper-evident dosing cap or closed transfer connectorDouble- or triple-bagged cleanroom transfer package

Planning a Quaternary Ammonium Disinfectant specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

Talk to Our Team