United States Office of Pesticide* and Toxic Substance* Environmental Protection Office of Pestiade Programs (TS-766CI Agency Washington, DC 20460 c/EPA Pesticide Fact Sheet Name Of Chemical: Potassium Permanganate Reason for Issuance: Registration Standard Date Issued: September 30, 1985 Fact Sheet Number: go 1. Description of Chemical Generic Name: KMn04 Common Names: Potassium Permanganate Trade Names: None EPA Shaughnessy Code: 068501 Chemical Abstracts Service (CAS) Number: 7722-64-7 Year of Initial Registration: 1962 Chemical Family: Inorganic Compound Pesticide type: Mlcrobloclde U.S. and Foreign Producers: There are no registered products containing potassium permanganate. Potassium permanganate used In pesticide products Is derived from commercial producers. 2. Use Patterns and Formulations Application sites: as a bactericidal, fungicidal, and algaecldal agent In cooling towers, evaporative condensers, air wash systems, ornamental ponds, cooling fountains, aquaria, human drinking water, and poultry drinking water as applicable. Potassium permanganage is also used as a surface disinfectant, sanitizer, and deodorizer. Types of formulations: formulations Include ready to use liquids (0.004? - 2.5%), pelleted/tableted (1058), crystals (80* - 99.99?), and powder Types and methods of application: as a disinfectant, potassium permanganate is diluted according to label directions and applied to hard, nonporous, Inanimate surfaces. For the other uses described above, potassium permanganate is added directly to the water to be treated, Application rates: for cooling towers, air washers, and evaporative condensers, use 3.6 oz. of active ingredient (a.l.)/500-1000 gal. of water, or 27-62 ppm a.i. For aquaria and ornamental ponds use 4 ppm a.i. to control algae growth. For human drinking water treatment use 1.1 mg of product per gal. of water (i.e., 4.4 - 4.5 ppm). For poultry drinking water, use 0.648 to 1.296 grains of product per quart of water (I.e., 272 - 543 ppm a.i.). ------- —2— 3. Science Findings Summary of science statement: “bottom line” of science information listed below. Chemical Characterist1i e: Physical state: crystalline Color: dark purple Melting Point: decomposes at 240°C Solubility: 6.38 gm/lOOm ], at 20°C 25 gm/lOOml at 65°C in water. Is decomposed by organic solvents (e.g., alcohols) and reducing sub- stances (e.g., iodate, oxalate, and ferrous salts, especially under acidic conditions. 4. Toxicology Characteristics: Acute Eye Irritation: Tox. CAT I Skin Irritation: Tox. CAT I Oral 50 Tox. CAT HI Major routes of exposure: dermal and oral Chronic Toxicology: there are no chronic toxicity data on file with the Agency. Based on considerations regarding the chemical reactivity of the permanganate ion and the ubiquity of manganese, there are no chronic or subchronic toxicity data requirements. Environmental Characteristics: no data are available to assess the environmental fate of potassium permanganate. Ecological Characteristics: Freshwater Fish LC 50 (97.5 — 100% a.i. tested): Bluegill sunfish 2.7 — 3.6 /l Tolerance Assessments: under the Federal Food, Drug and Cosmetic Act (FFDC), a tolerance or an exemption from the requirement of a tolerance is required for the residues of manganese in poultry and eggs (which result from the poultry drinking water use pattern). The Agency is requesting that the registrant petition the Agency for an exemption from the requirement of a tolerance. No problems have been reported to the Agency (i.e., PIMS or data in reference to Section 6(a)(2) of the Act) with respect to the use of this chemical. ------- —3— 5. Summary of Regulatory Position and Rationale The Agency has determined that potassium permanganate products to be used in treating human drinking water must bear labeling directions which would limit the residues of manganese in the finished potable water to not more than 0.05 mg/i. Otherwise, there are no formulation, manufacturing process or geographical restrictions f or Potassium permanganate registrations. Unique warning statement: Environmental Hazards Do not discharge effluent containing this product into lakes, ponds, streams, estuaries, oceans or public water unless this product is specifically identified and addressed in an NPDES permit. Do not discharge effluent containing this product to sewer systems without previously notifying the sewage treatment plant authority. For guidance contact your State Water board or Regional Office of the EPA. A risk assessment has not been conducted on this chemical. 6. Summary of Major Data Gaps : NONE 7. Contact Person at EPA Registration Division (TS—767C) U.S. Environmental Protection Agency Office of Pesticide Programs 401 M Street, S.W. Washington, D.C. 20460 Attn.: Marshall Swindell Telephone: (703)—557—3675 DISCLAIMER: The information presented in this Chemical Information Fact Sheet is for informational purposes only and may not be used to fulfill data requirements for pesticide registration and reregistration. ------- |