The MSDS format adheres to the standards and regulatory requirements
of the United States and may not meet regulatory requirements
in other countries.
DuPont Page 1
Material Safety Data Sheet
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"DuPont" "FREEFALL" SC COTTON DEFOLIANT
M0000608 Revised 25-FEB-2008
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CHEMICAL PRODUCT/COMPANY IDENTIFICATION
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Material Identification
"FREEFALL" is a registered trademark of DuPont.
"DuPont" is a trademark of DuPont.
Tradenames and Synonyms
Thidiazuron
Company Identification
MANUFACTURER/DISTRIBUTOR
DuPont
1007 Market Street
Wilmington, DE 19898
PHONE NUMBERS
Product Information : 1-800-441-7515 (outside the U.S.
302-774-1000)
Transport Emergency : CHEMTREC 1-800-424-9300(outside U.S.
703-527-3887)
Medical Emergency : 1-800-441-3637 (outside the U.S.
302-774-1000)
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COMPOSITION/INFORMATION ON INGREDIENTS
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Components
Material CAS Number %
THIDIAZURON 51707-55-2 41
(N-PHENYL-N-1,2,3-THIADIAZOL-5-YLUREA)*
1,2-PROPYLENE GLYCOL 57-55-6 5
1,2-BENZISOTHIAZOLIN-3-ONE 2634-33-5 0.2
OTHER INERT INGREDIENTS 53.8
Components (Remarks)
* Contains 4.0 lbs. of thidiazuron per gallon.
M0000608 DuPont Page 2
Material Safety Data Sheet
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HAZARDS IDENTIFICATION
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Emergency Overview
CAUTION. Harmful if swallowed, inhaled, or absorbed through
the skin. Avoid breathing spray mist. Avoid contact with
skin, eyes, and clothing. Do not contaminate food or
feedstuffs.
Potential Health Effects
Eye Contact : Avoid contact with eyes.
Skin Contact : Avoid contact with skin or clothing.
Skin Absorption: Harmful if absorbed through the skin.
Inhalation : Harmful if inhaled. Avoid breathing
spray mist.
Ingestion : Harmful if swallowed. There are no
specific health effects known for
ingestion of small amounts incidental to
routine handling and use.
SIGNS AND SYMPTOMS EFFECTS OF ACUTE OVEREXPOSURE:
High oral doses can cause apathy (lack of feeling or
emotion).
Carcinogenicity Information
None of the components present in this material at concentrations
equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH
as a carcinogen.
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FIRST AID MEASURES
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First Aid
IF SWALLOWED: Call a poison control center or doctor
immediately for treatment advice. Have person sip a glass
of water if able to swallow. Do not induce vomiting unless
told to do so by the poison control center or doctor. Do
not give anything by mouth to an unconscious person.
IF INHALED: Move person to fresh air. If person is not
breathing, call 911 or an ambulance, then give artificial
respiration, preferably mouth-to-mouth, if possible. Call a
poison control center or doctor for further treatment
advice.
IF IN EYES: Hold eye open and rinse slowly and gently
with water for 15-20 minutes. Remove contact lenses, if
present, after the first 5 minutes, then continue rinsing
M0000608 DuPont Page 3
Material Safety Data Sheet
(FIRST AID MEASURES - Continued)
eye. Call a poison control center or doctor for treatment
advice.
IF ON SKIN OR CLOTHING: Take off contaminated clothing.
Rinse skin immediately with plenty of water for 15-20
minutes. Call a poison control center or doctor for
treatment advice.
Have product container or label with you when calling a
poison control center or doctor, or going for treatment.
You may also contact 1-800-441-3637 for emergency medical
treatment information.
Notes to Physicians
Supportive care and symptomatic treatment.
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FIRE FIGHTING MEASURES
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Flammable Properties
Flash Point & Method : >100掳C / >212掳F
Test Type: Setaflash tester
Method: Closed Cup
Autoignition Temperature : Not available
FIRE FIGHTING HAZARDS & PROCEDURES
Extinguishing Media : Water, foam, dry powder,
carbon dioxide (CO2).
Fire Fighting Equipment/
Instructions : Wear self-contained breathing
apparatus.
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ACCIDENTAL RELEASE MEASURES
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Safeguards (Personnel)
NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)
sections before proceeding with clean-up. Use appropriate
PERSONAL PROTECTIVE EQUIPMENT during clean-up.
Use proper equipment to minimize personal exposure. Take
all necessary action to prevent and to remedy the effects of
the spill. Ensure that the disposal is in compliance with
Federal or local disposal regulations. Notify the
appropriate authorities immediately. Report immediately to
authorities if liquid enters watercourse or sewer.
M0000608 DuPont Page 4
Material Safety Data Sheet
(ACCIDENTAL RELEASE MEASURES - Continued)
Spill Clean Up
Land Spill or Leaks:
Wear impervious gloves when removing spillages and cleaning
up contaminated areas.
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HANDLING AND STORAGE
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Handling (Personnel)
Avoid contact with skin, eyes and clothing. Do not
contaminate food or feedstuffs.
USERS SHOULD:
- Wash hands before eating, drinking, chewing gum, using
tobacco, or using the toilet.
- Remove clothing immediately if pesticide gets inside.
Then wash thoroughly and put on clean clothing.
Storage
Do not contaminate water, food or feed by storage.
Store at temperatures below 100掳F. If allowed to freeze,
remix before using.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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Engineering Controls
Control airborne concentrations below the exposure
guidelines. Local exhaust ventilation may be necessary,
when used in a confined area.
When handlers use closed systems, enclosed cabs, or aircraft
in a manner that meets the requirements listed in the Worker
Protection Standard (WPS) for agricultural pesticides [40
CFR 170.240 (d) (4-6)], the handler PPE requirements may
be reduced or modified as specified in the WPS.
Personal Protective Equipment
Eye/Face Protection:
- Safety glasses / goggles.
Respiratory Protection:
- Ensure adequate ventilation.
Applicators and other handlers must wear:
- Long-sleeved shirt and long pants.
- Waterproof gloves.
- Shoes plus socks.
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Material Safety Data Sheet
(EXPOSURE CONTROLS/PERSONAL PROTECTION - Continued)
Follow manufacturer鈥檚 instructions for cleaning and
maintaining PPE. If no such instructions for washables, use
detergent and hot water. Keep and wash PPE separately from
other laundry.
PPE required for early entry to treated areas that is
permitted under the Worker Protection Standard and that
involves contact with anything that has been treated, such
as plants, soil, or water, is:
- Coveralls.
- Waterproof gloves.
- Shoes plus socks.
Exposure Guidelines
Applicable Exposure Limits
1,2-PROPYLENE GLYCOL
PEL (OSHA) : None Established
TLV (ACGIH) : None Established
AEL * (DuPont) : None Established
WEEL (AIHA) : 50 ppm, total; 10 mg/m3, aerosol only
(8 hr TWA)
* AEL is DuPont鈥檚 Acceptable Exposure Limit. Where governmentally
imposed occupational exposure limits which are lower than the AEL
are in effect, such limits shall take precedence.
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PHYSICAL AND CHEMICAL PROPERTIES
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Physical Data
Odor : Slightly sweet
Vapor Pressure : Not available
pH : 6.8 at 1% wt/wt
Solubility in Water: Dispersible
Density : 1.1793 g/mL at 20掳C
Physical State : Liquid
Color : Beige
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STABILITY AND REACTIVITY
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Chemical Stability
General : Stable
Hazardous Polymerization : Will not occur
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Material Safety Data Sheet
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TOXICOLOGICAL INFORMATION
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Animal Data
Acute Oral Toxicity - Rat: LD50: > 500 mg/kg
Acute Dermal Toxicity - Rat: LD50: > 5,000 mg/kg
Acute Inhalation Toxicity - Rat: LC50: 4.33 mg/l 4 h
Acute Respiratory Irritation
No test data available
Skin Irritation - Rabbit: Non-irritating
Eye Irritation - Rabbit: Non-irritating.
Sensitization - Guinea pig: Non-sensitizing
THE FOLLOWING DATA BELOW WAS DEVELOPED WITH:
Thidiazuron technical (=98%), the active ingredient:
Sub-Chronic Toxicity: Results from 90-day animal studies
suggest no target organ effects under the conditions of
normal handling and use.
Chronic Toxicity:
In two-year feeding studies with rats and mice, no toxic
effects were observed in animals administered thidiazuron up
to the highest test dose (600 ppm and 1000 ppm,
respectively). In a similar one-year study with dogs, no
toxic effects were observed at the low dose (100 ppm). At
the higher doses (300-1000 ppm), toxic hemolytic anemia
associated with compensatory hemopoiesis was the main
effect noted. However, the anemic conditions were only
confined to a few susceptible dogs and, more importantly,
the effects were reversible once thidiazuron was withdrawn
from their diets. From these animal studies, it is
concluded that no toxic effect of thidiazuron is expected
under normal conditions of use.
Reproductive & Developmental Toxicity:
No adverse effects on fertility or reproduction were
observed in a three-generation rat study.
Neurotoxicity: Data not available.
Teratogenicity:
No teratogenic effects were observed for thidiazuron in rat
or rabbit teratology studies.
Mutagenicity:
Thidiazuron is not mutagenic or genotoxic when tested in
several mutagenicity studies.
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Material Safety Data Sheet
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DISPOSAL CONSIDERATIONS
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Waste Disposal
Do not contaminate water, food or feed by disposal.
Wastes resulting from the use of this product may be
disposed of on site or at an approved waste disposal
facility.
ENVIRONMENTAL HAZARDS:
Do not apply directly to water, or to areas where surface
water is present, or to intertidal areas below the mean high
water mark. Do not contaminate water when disposing of
equipment washwaters. Do not apply when weather conditions
favor drift from targeted area.
Container Disposal
Triple rinse (or equivalent). Then offer for recycling or
reconditioning, or puncture and dispose of in a sanitary
landfill or incineration, or if allowed by State and Local
authorities, by burning. If burned, stay out of smoke.
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TRANSPORTATION INFORMATION
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Shipping Information
Department of Transportation (DOT): Not Regulated
Freight Class: Defoliants, Plant, N.O.I.
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REGULATORY INFORMATION
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U.S. Federal Regulations
EPA Reg. No. 264-700-352
TSCA List:
1,2-Propylene glycol : 57-55-6
1,2-benzisothiazolin-3-one : 2634-33-5
TSCA 12b Export Notification:
None
CERCLA:
None
SARA TITLE III
302 Notification and Information : None
313 Reportable Ingredients : None
US State Right-to-Know Ingredients:
1,2-Propylene glycol 57-55-6 PA, RI
M0000608 DuPont Page 8
Material Safety Data Sheet
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OTHER INFORMATION
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NFPA, NPCA-HMIS
HAZARDS CLASSIFICATION:
(0-minimal, 1-slight, 2-moderate, 3-serious, 4-severe)
HMIS:赂HEALTH-1 FIRE-1 REACTIVITY-0
NFPA:赂HEALTH-1 FIRE-1 REACTIVITY-0
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The data in this Material Safety Data Sheet relates only to the
specific material designated herein and does not relate to use in
combination with any other material or in any process.
Responsibility for MSDS: DuPont Crop Protection
Address : Wilmington, DE 19898
Telephone : 1-888-638-7668
This information is based upon technical information believed to be
reliable. It is subject to revision as additional knowledge and
experience is gained.
End of MSDS
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