Product: 655-812 Prentox® Perm-X™ UL 31-66
Material Safety Data Sheet
U.S. Department of Labor (OSHA 29 CFR 1910.1200)
Manufacturer's Name: Prentiss Incorporated
C. B. 2000
Floral Park, NY 11001
Telephone Number: (516) 326-1919
Section 1: Chemical Identification
Product: 655-812 Prentox® Perm-X™ UL 31-66
EPA Signal Word: CAUTION
Active Ingredients (%): Permethrin (31%) (CAS # 52645-53-1)
Piperonyl Butoxide Technical (66%) (CAS #51-03-6)
Chemical Class: Insecticide mixture

Section 2: Composition/Information on Ingredients
Material: PEL TLV Other Carcinogen

Permethrin N/A N/A Not Est. No
Piperonyl Butoxide Technical Not Est. Not Est. Not Est. No

Section 3: Hazards Identification
Primary Routes of Entry:
Eye and skin contact, inhalation.
Prolonged or frequent repeated skin contact with permethrin may cause allergic reaction in some
individuals. Repeated and prolonged skin contact with piperonyl butoxide may cause skin irritation. This
product may cause temporary eye irritation.
Symptoms of Acute Exposure
Large, toxic doses of permethrin, administered to laboratory animals, have produced central nervous
system effects with symptoms that include diarrhea, salivation, bloody nose, tremors and intermittent
convulsions. Overexposure to permethrin via inhalation also produced hyperactivity and hypersensitivity.

Section 4: First Aid Measures

Ingestion: Immediately call a physician or Poison Control Center or doctor. Do not induce vomiting
unless told by a poison control center or a doctor. Do not give any liquid to the person. Do not give
anything by mouth to an unconscious person.
Eye Contact: Immediately flush eyes with large amounts of water and continue flushing until irritation
subsides. If irritation persists, seek medical attention (based on solvent).
Skin Contact: Take off contaminated clothing. Rinse skin immediately with plenty of water for 15 to 20
minutes. Call a Poison Control Center for treatment advice.
Inhalation: The solvent in this product has a low vapor pressure and is not expected to present an
inhalation exposure hazard during mixing and loading. Follow directions for use on product packaging
when applying this product.
Note to Physician: Contains petroleum distillate – vomiting may cause aspiration hazard.
Product: 655-812 Prentox® Perm-X™ UL 31-66

Section 5: Fire Fighting Measures
Fire and Explosion
Flash Point (Test Method): 260O F (TCC)
Flammable Limits (% in air): Lower: N/A Upper: N/A
Unusual Fire, Explosion and Reactivity Hazards
The solvent in this product may generate dense smoke when burning. Carbon monoxide, carbon dioxide
and other oxides may be generated as products of combustion.
In case of Fire
Use water fog, dry chemical, foam or CO2 extinguishing media. Wear full protective clothing and self-
contained breathing apparatus. Evacuate nonessential personnel from the area to prevent human
exposure to fire, smoke, fumes or products of combustion. Prevent use of contaminated buildings, area
and equipment until decontaminated. Use as little water as possible to prevent spread of contaminated

Section 6: Accidental Release Measures
Wear chemical safety glasses with side shields or chemical goggles, rubber gloves, rubber boots, long-
sleeved shirt, long pants, to prevent contact with spilled material. For small spills, cover the spill with an
absorbent material such as pet litter. Sweep up and place in an approved chemical container. Wash the
spill area with water containing a strong detergent, absorb with pet litter or other absorbent material,
sweep up and place in a chemical container. Seal the container and handle in an approved manner. Flush
the area with water to remove any residue. Do not allow wash water to contaminate water supplies.

Section 7: Handling and Storage
Store the material in a well-ventilated, secure area, out of the reach of children and domestic animals. Do
not store food, beverages or tobacco products in the storage area. Prevent eating, drinking, tobacco
usage, and cosmetic application in areas where there is a potential for exposure to the material. Always
wash thoroughly after handling.

Section 8: Exposure Controls/Personal Protection
Prevent eating, drinking, tobacco usage and cosmetic application in areas where there is a
potential for exposure to the material. Always wash thoroughly after handling.
Eye Contact: To avoid eye contact, wear safety glasses with side shields or chemical goggles.
Skin Contact: To avoid skin contact, wear rubber gloves, rubber boots, long-sleeved shirt, and long
Inhalation: Avoid breathing vapors or mist.

Section 9: Physical and Chemical Properties
Appearance: Clear light amber liquid
Odor: Slight solvent and licorice.
Melting Point: N/A
Boiling Point: N/D
Specific Gravity/Density: 1.0797-1.0853
pH: N/A
Product: 655-812 Prentox® Perm-X™ UL 31-66
Solubility in water: Oil solution, will not mix in water.
Vapor Pressure: N/D
% Volatile by volume: N/D

Section 10: Stability and Reactivity

Stability Stable Hazardous Polymerization: Will not occur Conditions to avoid: Flame, heat, ignition sources and strong oxidizers or reducing Hazardous Decomposition Products:
Carbon monoxide and/or carbon dioxide. Chlorine and hydrogen chloride may be formed.

Section 11: Toxicological Information
Acute Toxicity/Irritation Studies
Oral LD50 (Rat): >500 to <5,000 mg./Kg. (female)
>5,000 mg./Kg. (male)
Dermal: Dermal LD50 (Rat): >2,000 mg/Kg.
Inhalation: 4-hour LC50 (Rat): >2.02 mg./L.
Eye Contact: Minimally irritating
Skin Contact: Non-irritating.
Skin Sensitization: Permethrin is a skin sensitizer in some individuals.
Mutagenic Potential: Permethrin and Piperonyl Butoxide did not produce any mutagenic
Reproductive Hazard Potential: Permethrin and Piperonyl Butoxide were not teratogenic when
Chronic/Subchronic Toxicity Studies:
Carcinogenic Potential: Permethrin: A statistically significant increase of lung and liver tumors was
observed in female mice receiving diets containing 375 and 750 mg/Kg/day over 85 weeks. Piperonyl Butoxide: Marginally higher incidences of benign liver tumors in mice were observed following lifetime high dose exposures. The significance of this observation is questionable and under review. The doses at which tumors were observed greatly exceeded human dietary intake. At anticipated dietary exposure levels, it is highly unlikely that piperonyl butoxide would result in carcinogenic effects.
Section 12: Ecological Information
Summary of Effects:
Permethrin and piperonyl butoxide are highly toxic to fish and other aquatic
organisms. Do not apply directly to water, or to areas where surface water is present or to intertidal
areas below the mean high water mark other than as instructed on the product label. Do not contaminate
water by disposing of equipment washwater. Apply this product only as specified on the label.
Product: 655-812 Prentox® Perm-X™ UL 31-66

Section 13: Disposal Considerations

Disposal: Do not reuse product containers. Dispose of product containers, waste containers, and
residues according to Federal, State and local health and environmental regulations.
Characteristic Waste: Ignitable
Listed Waste: N/A

Section 14: Transport Information
DOT Classification:
Pesticides, liquid, toxic, n.o.s. (permethrin), 6.1, UN2902, PG III
B/L Freight Classification: Insecticides: other than poison, NMFC item 102120
International Transportation: Not Available

Section 15: Regulatory Information

SARA Title III Classification:
Section 311/312: Acute Health Hazard – Yes Chronic Health Hazard – Yes Fire Hazard – No Sudden release of pressure hazard – No Reactivity hazard – No Section 313 chemicals: Permethrin (31%) (CAS # 52645-53-1) Piperonyl Butoxide (66%) (CAS # 51-03-6) This product contains a toxic chemical or chemicals subject to the reporting requirements of
Section 313 of Title III and of 40 CFR 372. Any copies or redistribution of this MSDS must
include this notice.

Proposition 65:
Not applicable
RCRA Classification: Ignitable
TSCA Status: Exempt from TSCA
Section 16: Other Information
NFPA Hazard Ratings:

Health 1 0 Least Flammability 0 1 Slight Reactivity 0 2 Moderate Date Prepared: September 9, 2002
Initial Issue.
The information and recommendations contained herein are based upon data believed to be
correct. However, no guarantee or warranty of any kind, expressed or implied, is made with
respect to the information contained herein.

Source: http://elle-alexander.com/envincio/newsite/product-dload/Prentox%20Perm-X%20UL%2031-66-msds.pdf

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