MATERIAL SAFETY DATA SHEET
In Case of Emergency, Call
Syngenta Crop Protection, Inc.
1-800-888-8372
Post Office Box 18300
Greensboro, NC 27419
1. PRODUCT IDENTIFICATION
REWARD LANDSCAPE AND AQUATIC
Product Name: Product No.: A12872A
HERBICIDE
EPA Signal Word: Warning
Active Ingredient(%): Diquat dibromide (37.3%) CAS No.: 85-00-7
Chemical Name: [6,7-dihydrodipyrido(1,2-a:2鈥?,1鈥?-c)pyrazinediium dibromide]
Chemical Class: Bipyridilium (dipyridilium) contact herbicide
EPA Registration Number(s): 100-1091 (formerly 10182-404) Section(s) Revised: All sections
2. COMPOSITION/INFORMATION ON INGREDIENTS
ACGIH
OSHA NTP/IARC/OSHA
Other
TLV
PEL Carcinogen
Material
Diquat dibromide (37.3%) Not Established 0.5 mg/m鲁 TWA (total 0.5 mg/m鲁 TWA** No
dust); 0.08 mg/m鲁 TWA
(respirable dust)
** recommended by NIOSH
Ingredients not precisely identified are proprietary or non-hazardous. Values are not product specifications.
3. HAZARDS IDENTIFICATION
Symptoms of Acute Exposure
Harmful if inhaled or swallowed. Dust, mist or vapor irritating to eyes and respiratory tract. May cause skin irritation.
Hazardous Decomposition Products
Can decompose at high temperatures forming toxic gases.
Flammable hydrogen gas may be formed on contact with aluminum. See "Conditions to Avoid", Section 10.
Physical Properties
Appearance: Dark brown liquid
Odor: Odorless
Unusual Fire, Explosion and Reactivity Hazards
This product may form flammable and explosive hydrogen gas when in contact with aluminum.
4. FIRST AID MEASURES
Have the product container, label or Material Safety Data Sheet with you when calling Syngenta (800-888-8372), a poison
contol center or doctor, or going for treatment.
If swallowed: Call Syngenta (800-888-8372), a poison control center or doctor immediately for treatment
Ingestion:
advice. Have the person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so
after calling 800-888-8372 or by a poison control center or doctor. Do not give anything by mouth to an
unconscious person.
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If in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses,
Eye Contact:
if present, after 5 minutes, then continue rinsing eye. Call Syngenta (800-888-8372), a poison control center
or doctor for treatment advice.
Skin Contact: If on skin or clothing: Take off contaminated clothing. Rinse skin immediately with plenty of water for 15-
20 minutes. Call Syngenta (800-888-8372), a poison control center or doctor for treatment advice.
If inhaled: Move person to fresh air. If person is not breathing, call 911 or an ambulance, then give artificial
Inhalation:
respiration, preferably mouth-to-mouth if possible. Call Syngenta (800-888-8372), a poison control center or
doctor for further treatment advice.
Notes to Physician
There is no specific antidote if this product is ingested.
Treat symptomatically.
Medical Condition Likely to be Aggravated by Exposure
None known.
5. FIRE FIGHTING MEASURES
Fire and Explosion
Flash Point (Test Method): Not Applicable
Flammable Limits (% in Air): Lower: % Not Applicable Upper: % Not Applicable
Autoignition Temperature: Not Applicable
Flammability: Not Applicable
Unusual Fire, Explosion and Reactivity Hazards
This product may form flammable and explosive hydrogen gas when in contact with aluminum.
In Case of Fire
Use 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. Water runoff can cause
environmental damage. If water is used to fight fire, dike and collect runoff.
6. ACCIDENTAL RELEASE MEASURES
In Case of Spill or Leak
Control the spill at its source. Contain the spill to prevent it from spreading, contaminating soil, or entering sewage and
drainage systems or any body of water. Clean up spills immediately, observing precautions outlined in Section 8. If a
solid, sweep up material and place in a compatible disposal container. If a liquid, cover entire spill with absorbing
material and place into compatible disposal container. Scrub area with hard water detergent (e.g. commercial products
such as Tide, Joy, Spic and Span). Pick up wash liquid with additional absorbent and place into compatible disposal
container. Once all material is cleaned up and placed in a disposal container, seal container and arrange for disposition.
7. HANDLING AND STORAGE
This product reacts with aluminum to produce flammable hydrogen gas. Do not mix or store in containers or systems made of
aluminum or having aluminum fittings.
Store the material in a well-ventilated, secure area out of reach of children and domestic animals. Do not store food, beverages
or tobacco products in the storage area. Prevent eating, drinking, tobacco use, and cosmetic application in areas where there is
a potential for exposure to the material. Wash thoroughly with soap and water after handling.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
THE FOLLOWING RECOMMENDATIONS FOR EXPOSURE CONTROLS/PERSONAL PROTECTION ARE INTENDED FOR
THE MANUFACTURE, FORMULATION AND PACKAGING OF THE PRODUCT.
FOR COMMERCIAL APPLICATIONS AND ON-FARM APPLICATIONS CONSULT THE PRODUCT LABEL.
Prevent eating, drinking, tobacco usage and cosmetic application in areas where there is a potential for
Ingestion:
exposure to the material. Wash thoroughly with soap and water after handling.
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Eye Contact: Where eye contact is likely, use chemical splash goggles. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Skin Contact: Where contact is likely, wear chemical-resistant (such as nitrile or butyl) gloves, coveralls, socks and
chemical-resistant footwear. For overhead exposure, wear chemical-resistant headgear.
Inhalation: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels
below exposure limits. A NIOSH-certified combination air-purifying respirator with an N, P or R 95 or HE
class filter and an organic vapor cartridge may be permissible under certain circumstances where airborne
concentrations are expected to exceed exposure limits. Protection provided by air-purifying respirators is
limited. Use a pressure demand atmosphere-supplying respirator if there is any potential for uncontrolled
release, exposure levels are not known, or under any other circumstances where air-purifying respirators
may not provide adequate protection.
9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance: Dark brown liquid
Odor: Odorless
Melting Point: Not Available
Boiling Point: Not Available
Specific Gravity/Density: 1.20 g/mL @ 68掳F (20掳C)
4-6
pH:
Solubility in H2O
Diquat dibromide: 718,000 mg/L @ 68掳F (20掳C) and pH 7.2
Vapor Pressure
Diquat dibromide: <10(-8) mmHg @ 77掳F (25掳C)
10. STABILITY AND REACTIVITY
Stability: Stable under normal use and storage conditions.
Hazardous Polymerization: Will not occur.
Conditions to Avoid: Concentrate should not be stored in aluminum containers. Spray solutions should
not be mixed, stored or applied in containers other than plastic, plastic-lined steel,
stainless steel or fiberglass.
Materials to Avoid: Strong alkalis and anionic wetting agents (e.g., alkyl and alkylaryl sulfonates).
Corrosive to aluminum.
Hazardous Decomposition Products: Can decompose at high temperatures forming toxic gases.
Flammable hydrogen gas may be formed on contact with aluminum. See
"Conditions to Avoid", Section 10.
11. TOXICOLOGICAL INFORMATION
Acute Toxicity/Irritation Studies (Finished Product)
Ingestion: Slightly Toxic
Oral (LD50 Rat) : = 600 mg/kg body weight
Dermal: Moderately Toxic
Dermal (LD50 Rabbit) : = 260 mg/kg body weight
Inhalation: Moderately Toxic
Inhalation (LC50 Rat) : = 0.121 mg/l air - 4 hours
Eye Contact: Irritant
Skin Contact: Not Available
Skin Sensitization: Not Available
Neurotoxicity
Diquat dibromide: No evidence for neurotoxic effects in rats dosed up to 400 ppm ion in the diet for 13 weeks.
Reproductive Effects
Diquat dibromide: Mutagenicity: No evidence in in vivo assays.
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Development Toxicity: In rabbit studies a small percentage of fetuses had minor defects at 3 and
10 mg ion/kg/d.
Chronic/Subchronic Toxicity Studies
Kidney weight decreases and cataracts seen in dogs at 12.5 mg ion/kg/d.
Diquat dibromide:
Carcinogenicity
Diquat dibromide: No evidence of carcinogenicity in rat and mouse studies.
Other Toxicity Information
None.
Toxicity of Other Components
Not Applicable
Target Organs
Active Ingredients
Diquat dibromide: Eye, kidney
Inert Ingredients
: Not Applicable
12. ECOLOGICAL INFORMATION
Summary of Effects
Diquat dibromide:
This material is toxic to fish and wildlife.
Eco-Acute Toxicity
Diquat dibromide: Rainbow Trout 96-hour LC50 21 mg/L
Mirror Carp 96 hours LC50 67 mg/L
Eco-Chronic Toxicity
Diquat dibromide: Not Available
Environmental Fate
Diquat dibromide:
No data available for the formulation. The information presented here is for the active ingredient, diquat debromide.
Sorption: Extremely tightly adsorbed to (negatively-charged) soil particles due to its dicationic nature. Diquat is
primarily adsorbed to clay, less so to OM. Diquat bound to soil is unavailable for plant uptake and is largely
unavailable to soil microbes.
Koc: Average is 1,000,000 mL/g (estimated).
Photodegradation: Losses probably occur on sprayed leaf surfaces and on dead and decaying vegetation.
Photochemical decomposition of diquat has been measured in the lab by irradiating thin layers of soil, but has not
been unequivocally demonstrated under field conditions.
Other degradation: Certain microbe species in soil-less culture media decompose diquat. However, they degrade
diquat bound to soil slowly or not at all.
Persistence: Typical half-life is 1000 d. Diquat is highly persistent due to strong binding to clay and unavailability to
microbes. Diquat in soil is not taken up by plants, so any crop can be seeded at any time after application.
Mobility: Immobile in soil.
Volatilization: No losses.
13. DISPOSAL CONSIDERATIONS
Disposal
Do not reuse product containers. Dispose of product containers, waste containers, and residues according to local, state,
and federal health and environmental regulations.
Characteristic Waste: Not Applicable
Listed Waste: Not Applicable
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14. TRANSPORT INFORMATION
DOT Classification
Corrosive Liquid, N.O.S. (diquat dibromide, 37.3%), 8, UN1760, PGIII
B/L Freight Classification
Herbicides, NOIBN
Comments
International Transportation
Corrosive Liquid, N.O.S. (diquat dibromide, 37.3%), Class 8, UN1760, PGIII
15. REGULATORY INFORMATION
EPCRA SARA Title III Classification
Acute Health Hazard
Section 311/312 Hazard Classes:
Chronic Health Hazard
Section 313 Toxic Chemicals: Not Applicable
California Proposition 65
None
CERCLA/SARA 302 Reportable Quantity (RQ)
None
RCRA Hazardous Waste Classification (40 CFR 261)
Not Applicable
TSCA Status
Exempt from TSCA, subject to FIFRA
16. OTHER INFORMATION
HMIS Hazard Ratings 0 Minimal
NFPA Hazard Ratings
1 Slight
Health: 2
Health: 2
2 Moderate
Flammability: 1
Flammability: 1
3 Serious
Instability: 0 Reactivity: 0
4 Extreme
For non-emergency questions about this product call:
1-800-334-9481
Original Issued Date: 04/11/2002
Revision Date: Replaces:
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.
RSVP# : SCP-955-00349A
End of MSDS
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