BARQUAT 50-28
BARQUAT 50-28
BARQUAT 80-28
Quaternary Ammonium Compounds
Barquat 50-28 and Barquat 80-28 are blends of alkyl dimethyl benzyl ammonium chlorides.
When used as an active ingredient in FIFRA1 registered formulations such as hard surface
disinfectants, sanitizers and/or certain types of water treatment formulations, these products
have been found to provide superior biocidal action against a broad spectrum of microbial
organisms such as: bacteria, fungi, viruses, and algae. This “first” generation quaternary
ammonium compound delivers potent germicidal action in most applications.
Typical Chemical Composition
Active Ingredients
Barquat 50-28 Barquat 80-28
Alkyl (C14 58%, C12 14%, C16 28%)
Dimethyl Benzyl Ammonium Chloride 50% 80%
Inert Ingredients
Ethyl alcohol 10% 10%
Water 40% 10%
Typical Properties
Appearance Clear, pale yellow to
straw liquid
Clear, pale yellow to
straw liquid
Color (APHA) 125 Max. 200 Max.
pH (10% active solution) 6.5-8.3 6.5-8.3
Flash Point (Setaflash, °F) 102 104
Average Molecular Weight 371 371
Specific Gravity @ 25°C 0.97 0.92
Density in lbs./gal. @ 25oC 8.08 7.66
Freezing Point, °F <-4 14
FIFRA – Federal Insecticide, Fungicide and Rodenticide Act
Physical State
Clear, pale yellow to straw liquid with a mild odor. Congealing may occur during prolonged
storage at low temperatures; this is reversible on warming with mixing.
Solubility
Freely soluble in water, lower alcohols, ketones and glycols.
Safety & Toxicology
Refer to Lonza Material Safety Data Sheet for this product.
Regulatory Barquat® 50-28 Barquat® 80-28
EPA Registration No.: 6836-156 6836-162
CAS No.: 68424-85-1
68424-85-1
Barquat 50-28 and Barquat 80-28 are permitted for use as indirect food contact surface sanitizers
as noted in 40 CFR 180.940(a).
The components of Barquat 50-28 and Barquat® 80-28 are listed in the United States
Environmental Protection Agency TSCA Chemical Inventory list.
Application
Barquat 50-28 and Barquat 80-28 have been incorporated into a substantial number of Lonza
EPA registered formulations. These formulations include but are not limited to: disinfectants,
sanitizers, and industrial water treatment.
