BARQUAT 50-65A

BARQUAT 50-65A maintains its efficacy across a broad pH-range.
BARQUAT 50-65A products are available at different active concentrations, C-chain distributions and solvent combinations.
BARQUAT 50-65A is a trade name for a formulation that belongs to the family of quaternary ammonium compounds (QACs), which are widely known for their strong antimicrobial, surfactant, and disinfectant properties.

CAS Number: 68424-85-1
Molecular Formula: C17H30ClN
Molecular Weight: 283.88
EINECS Number: 939-253-5

Synonyms: ZEPHIRAN CHLORIDE;alkyl(60%c14,25%c12,15%c16);alkyl(60%c14,25%c12,15%c16)dimethylbenzylammoniumchloride;alkyl(c12-c16);BAC;BAK;BENZYLDIMETHYLALKYLAMMONIUM CHLORIDE;BKC

BARQUAT 50-65A Antimicrobial contains the active substance C12-C16 Alkyl dimethyl benzyl ammonium chloride (ADBAC). 
The active is a cationic molecule offering good surfactant properties and can be formulated together with non-ionic and/or amphoteric surfactants. 
BARQUAT 50-65A has a broad antimicrobial efficacy against gram-positive and gram-negative bacteria, yeast, and enveloped viruses.  

The “50-65A” designation generally indicates a specific concentration range and formulation type, often meaning that the product contains between 50% and 65% active quaternary ammonium compounds in a liquid solution, with the remainder consisting of water or other solvents that help stabilize the mixture. 
This makes BARQUAT 50-65A a highly concentrated product that is primarily used as a raw material in the preparation of disinfectants, sanitizers, and cleaners for industrial, institutional, and household applications.
BARQUAT 50-65A is most frequently formulated with benzalkonium chloride (BAC) or other related alkyl dimethyl benzyl ammonium chlorides, which are cationic surfactants that bind strongly to negatively charged microbial cell membranes. 

By disrupting the lipid bilayers of bacteria, fungi, and certain viruses, it effectively kills or inactivates a broad spectrum of harmful organisms. 
Because of this mechanism of action, BARQUAT 50-65A is used in products that are applied to hard surfaces in hospitals, laboratories, food processing plants, and public facilities where strict hygiene control is necessary.
In addition to its role as a disinfectant base, BARQUAT 50-65A also serves as a preservative in various formulations, since its antimicrobial properties can prevent microbial spoilage of liquids, gels, or creams. 

This is particularly important in the manufacture of household cleaning products, industrial detergents, and even some cosmetic formulations, where product stability and extended shelf life are critical.
BARQUAT 50-65A is also applied in water treatment systems, such as cooling towers, swimming pools, and wastewater treatment facilities, where it helps to control the growth of algae, slime-forming organisms, and other microorganisms that could otherwise cause fouling, corrosion, or health risks. 
Its effectiveness as an algaecide and biocide makes it valuable for maintaining clean and efficient water systems.

Because of its strong cationic surfactant properties, BARQUAT 50-65A can additionally act as an emulsifier, detergent, and phase transfer agent, which means it is sometimes used in chemical synthesis, textile finishing, and other industrial processes that require substances to mix or interact across different phases. 
This versatility explains why it is a common ingredient in many industrial and institutional cleaning products beyond just surface disinfectants.

However, since BARQUAT 50-65A is supplied in a concentrated form, it is classified as a hazardous chemical and must be handled with care. 
Direct contact with the skin or eyes can cause severe irritation or burns, inhalation of vapors or aerosols can irritate the respiratory tract, and accidental ingestion can be toxic or corrosive to the digestive system. 
Moreover, it is also toxic to aquatic life, meaning that its release into the environment should be strictly controlled to avoid ecological damage.

Boiling point: 100 °C
Density: 0.98
Vapor pressure: 0.001–0.006 Pa at 20–25 °C
Flash point: 41 °C
Storage temp.: 2–8 °C
Solubility: Chloroform (Sparingly), Methanol (Slightly)
Form: Solid, Crystalline
Biological source: Rabbit
LogP: 0.004–2.75 at 20 °C
Surface tension: 28.27 mN/m at 1 g/L and 19.7 °C

BARQUAT 50-65A is a high-strength quaternary ammonium compound formulation, typically consisting of benzalkonium chloride or a mixture of related alkyl dimethyl benzyl ammonium chlorides dissolved in water or another stabilizing medium. 
The numeric range “50-65A” in the trade name usually reflects the percentage of active ingredients present, which means this formulation is considered a concentrated, industrial-grade disinfectant base. 
Such concentrated products are not typically sold directly to consumers but are instead purchased by manufacturers, formulators, or institutions that dilute and incorporate them into commercial or professional cleaning products.

In the public health and institutional sector, BARQUAT 50-65A plays a central role as a broad-spectrum disinfectant component, capable of targeting gram-positive and gram-negative bacteria, enveloped viruses, and certain fungi. 
Because it damages cell membranes and inactivates vital cellular functions, it is effective in controlling pathogens that are commonly associated with healthcare-acquired infections. 
Hospitals, clinics, nursing homes, and laboratories often rely on disinfectants derived from BARQUAT 50-65A to sanitize surfaces such as floors, countertops, medical equipment housings, and restroom facilities, where microbial contamination must be minimized to ensure safety.

In the food and beverage industry, BARQUAT 50-65A is used in sanitizing solutions for food-contact surfaces, utensils, and processing equipment. 
The advantage of quaternary ammonium compounds in this setting is that they are effective at low concentrations, have residual antimicrobial activity that continues to suppress microbial regrowth after application, and are less corrosive to equipment compared to harsher chemicals like chlorine bleach. 
This makes them particularly useful for maintaining cleanliness in dairies, breweries, meat processing plants, and packaging facilities.

BARQUAT 50-65A is also incorporated into disinfectants that are used to clean animal housing, hatcheries, barns, and equipment. 
By controlling bacterial, fungal, and viral contamination in these environments, it contributes to better animal health, reduces the spread of infectious diseases, and supports higher productivity in livestock and poultry farming operations.
Beyond disinfection, BARQUAT 50-65A is valuable in water treatment applications. 

BARQUAT 50-65A is added to cooling towers, air washers, industrial recirculating water systems, and swimming pools as an algaecide and biocide, preventing the buildup of microbial biofilms, algae, and slime layers that can clog systems, reduce efficiency, or pose health hazards. 
Its ability to remain active on surfaces and within water systems for extended periods makes it more reliable than some alternative agents.
The cosmetics and personal care sector also takes advantage of the cationic nature of quaternary ammonium compounds. 

Although BARQUAT 50-65A itself is generally too concentrated to be added directly, derivatives based on its active ingredient (benzalkonium chloride) are diluted and used as preservatives or antimicrobial agents in creams, lotions, and hand sanitizers. 
Despite its versatility and widespread applications, BARQUAT 50-65A must be regarded as a hazardous substance when handled in concentrated form. 
It is classified as corrosive, meaning that it can cause chemical burns to skin and severe eye injury if protective measures are not followed. 

Inhalation of concentrated vapors or aerosols may damage the respiratory tract, causing coughing, chest discomfort, or difficulty breathing, while accidental ingestion can result in nausea, vomiting, abdominal pain, and internal tissue damage. 
Its environmental hazards are also significant, as quaternary ammonium compounds are highly toxic to aquatic organisms, particularly fish and invertebrates, and they can persist in sediments if not carefully controlled during disposal.
Because of these hazards, BARQUAT 50-65A is strictly regulated in terms of occupational safety and environmental management. 

Workers handling it are generally required to wear gloves, goggles, and protective clothing, and to work in well-ventilated areas. 
Wastewater containing BARQUAT 50-65A is subject to treatment requirements to prevent uncontrolled release into natural ecosystems. 
Manufacturers and distributors also provide detailed safety data sheets (SDS) to guide proper handling, storage, and disposal practices.

Uses Of BARQUAT 50-65A:
BARQUAT 50-65A is a quaternary ammonium based antimicrobial used as a disinfectant, sanitizer, germicide, deodorant, fungicide and(or) algaecide.
BARQUAT 50-65A is primarily used as a disinfectant base ingredient in the formulation of cleaning products for healthcare, institutional, and industrial settings, because its quaternary ammonium compounds have a broad spectrum of antimicrobial activity that allows them to effectively kill or inactivate bacteria, fungi, and certain viruses that are responsible for contamination and disease transmission. 

This makes it highly valuable in hospitals, clinics, and laboratories, where maintaining a sanitary environment is crucial to preventing healthcare-associated infections and protecting patients with weakened immune systems.
In the food and beverage industry, BARQUAT 50-65A is incorporated into sanitizing solutions that are applied to processing equipment, food-contact surfaces, and packaging lines, where it helps to reduce the presence of harmful microorganisms that could otherwise spoil food products or pose risks to consumers. 

Unlike harsher chemicals such as chlorine-based disinfectants, quaternary ammonium compounds derived from BARQUAT 50-65A are less corrosive to equipment and can leave behind a residual antimicrobial effect, which provides ongoing protection against microbial regrowth after cleaning.
In agricultural and veterinary applications, BARQUAT 50-65A is used in disinfectant formulations for animal housing, hatcheries, and farm equipment, where it helps reduce the spread of bacterial, viral, and fungal infections among livestock and poultry. 
By lowering the microbial load in barns, pens, and feeding systems, it improves overall animal health, enhances productivity, and reduces the likelihood of costly disease outbreaks that could impact both farmers and the food supply chain.

Another major application of BARQUAT 50-65A is in water treatment and maintenance of water systems, where it is used as an algaecide and biocide to prevent the growth of algae, slime, and biofilm-forming microorganisms in cooling towers, swimming pools, and industrial recirculating water systems. 
This not only ensures that the water remains clean and visually appealing but also protects expensive equipment from fouling, corrosion, and efficiency losses that are caused by uncontrolled microbial growth.

In the personal care and cosmetic sector, derivatives of BARQUAT 50-65A’s active components are added at lower concentrations to products such as hand sanitizers, creams, and lotions, where they function as preservatives that protect the formulation from microbial contamination. 
They may also provide mild antimicrobial activity on the skin, contributing to enhanced hygiene when these products are used repeatedly over time.

BARQUAT 50-65A is a quaternary ammonium based antimicrobial used as a disinfectant, sanitizer, germicide, deodorant, fungicide and(or) algaecide.
BARQUAT 50-65A has several application fields: disinfectant, sanitizer, germicide, deodorant, fungicide and algae Control. 
It can also be used as slime control for pulp and paper and fungicide for wood protection.

BARQUAT 50-65A serves additional roles beyond disinfection. Because it is a strong cationic surfactant, it can be employed as an emulsifier, detergent, and phase transfer agent, allowing immiscible substances such as oil and water to mix more easily and enabling chemical reactions between compounds in different phases. 
This makes it useful in textile manufacturing, specialty chemical production, and other fields where both cleaning and chemical functionality are required.

BARQUAT 50-65A is a blend of alkyl dimethyl benzyl ammonium chlorides selected for performance as a cationic surfactant. 
BARQUAT 50-65A has applications in textile finishing, pulp and paper, sugar refining, water treatment, and household and/or industrial cleaners.

Safety Profile Of BARQUAT 50-65A:
BARQUAT 50-65Ais supplied as a highly concentrated quaternary ammonium compound solution, and because of this concentration it can be corrosive to human tissue, meaning that direct contact with the skin may cause irritation, redness, and in more severe cases, chemical burns. 
Repeated or prolonged exposure without proper protective measures can damage the skin barrier, leading to dryness, cracking, or sensitization, which is why gloves and protective clothing are strongly recommended for anyone handling it in an industrial or laboratory environment.

Contact with the eyes is especially dangerous, since even a small splash of concentrated BARQUAT 50-65A can cause severe irritation, pain, swelling, and blurred vision, and in worst-case scenarios it may result in permanent eye damage or loss of vision. 
Safety data sheets therefore emphasize the importance of goggles or face shields, as well as the immediate need to rinse with large amounts of water if accidental eye contact occurs.

BARQUAT 50-65A is inhaled in the form of vapors, mists, or aerosols, it can irritate the mucous membranes of the nose, throat, and lungs. 
Short-term exposure may lead to coughing, sore throat, or a burning sensation in the airways, while prolonged or repeated inhalation in poorly ventilated areas may increase the risk of more serious respiratory problems, particularly in sensitive individuals or those with pre-existing conditions like asthma.