Product Name: Myacide S-15
EPA Reg #: 48301-35
Manufacturer: Angus Chemical Co.
Active Ingred: 10.00% 2-Bromo-2-nitropropane-1,3-diol (Bronopol)
Use sites: PULP AND PAPER MILL SYSTEMS; COOLING TOWER WATER; EVAPORATIVE CONDENSER WATER; SECONDARY OIL RECOVERY INJECTION WATER; INDUSTRIAL PROCESSING WATER; ADHESIVES; OIL STORAGE TANK BOTTOM WATER; FUELS
(CRUDE); METALWORKING CUTTING FLUIDS; OIL RECOVERYDRILLING MUD; OIL RECOVERY PACKER FLUID; PAINTS; PAINTS (EMULSION); PAINTS (LATEX); LATEX; SOLUTIONS (UNSPECIFIED); INKS; STARCH SOLUTIONS; SLURRIES Pests: SLIME-FORMING BACTERIA; DETERIORATION/SPOILAGE BACTERIA;
SULFATE-REDUCING BACTERIA; ALGAE
EPA Reregistration Eligibility Decision
National Toxicology Program, Chemical Repository
In summary, bronopol can cause skin irritation, partially breaks down to formaldehyde, and is a severe eye irritant in its concentrated form (EPA R.E.D.). The LD50 for bronopol is approx. 300-350 mg/kg in rats.
If exposure occurs, bronopol is rapidly absorbed & excreted from the body.
Bronopol poses low risk of developmental or reproductive effects.
Bronopol is not a carcinogen (EPA Group E).
The environmental fate is highly dependent on ambient conditions, the half-life in water can
range from 1.5 years (20 deg. C and pH6) to 3 hours at higher temperatures and pH.
A major metabolite from degradation is formaldehyde.
Bronopol is slightly toxic to avian species; slightly toxic to freshwater fish; moderately toxic to freshwater invertebrates; and moderately highly toxic to marine invertebrates.