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
DACONIL WEATHERSTIK
Product Name: Product No.: A12531B
EPA Signal Word: Warning
Active Ingredient(%): Chlorothalonil (54.0%) CAS No.: 1897-45-6
Chemical Name: Tetrachloroisophthalonitrile
Chemical Class: Chlorinated Benzonitrile Fungicide
EPA Registration Number(s): 50534-209-100 Section(s) Revised: 4, 12, 14
2. COMPOSITION/INFORMATION ON INGREDIENTS
ACGIH
OSHA NTP/IARC/OSHA
Other
TLV
PEL Carcinogen
Material
Propylene Glycol Not Established Not Established 50 ppm TWA AIHA No
WEEL ****
Silica, amorphous 80 mg/m?/ % SiO2 TWA 10 mg/m?(inhalable) Not Established No
TWA
Chlorothalonil (54.0%) Not Established Not Established 0.1 mg/m?TWA (skin IARC Group 2B
sensitizer; possible
respiratory
sensitizer)
***
*** Syngenta Occupational Exposure Limit (OEL)
**** Recommended by AIHA (American Industrial
Hygiene Association)
Ingredients not precisely identified are proprietary or non-hazardous. Values are not product specifications.
3. HAZARDS IDENTIFICATION
Symptoms of Acute Exposure
An extremely severe irritant to eyes. May cause severe skin irritation and contact dermatitis. A mild skin sensitizer.
Hazardous Decomposition Products
Can decompose at high temperatures forming toxic gases.
Physical Properties
Appearance: Light gray liquid
Odor: Slight
Unusual Fire, Explosion and Reactivity Hazards
During a fire, irritating and possibly toxic gases may be generated by thermal decomposition or combustion.
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.
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DACONIL WEATHERSTIK
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.
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 Flammable
Unusual Fire, Explosion and Reactivity Hazards
During a fire, irritating and possibly toxic gases may be generated by thermal decomposition or combustion.
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
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, PACKAGING AND USE OF THIS PRODUCT.
FOR COMMERCIAL APPLICATIONS AND/OR 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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DACONIL WEATHERSTIK
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: Light gray liquid
Odor: Slight
Melting Point: Not Applicable
Boiling Point: 212癋
Specific Gravity/Density: 1.34 g/ml (water = 1)
6.5 - 8.5
pH:
Solubility in H2O
Chlorothalonil: 0.81 mg/l @ 77癋 (25癈)
Vapor Pressure
Chlorothalonil: 5.7 x 10(-7) mmHg @ 77癋 (25癈)
10. STABILITY AND REACTIVITY
Stability: Stable under normal use and storage conditions.
Hazardous Polymerization: Material is not known to polymerize.
Conditions to Avoid: None known.
Materials to Avoid: None known.
Hazardous Decomposition Products: Can decompose at high temperatures forming toxic gases.
11. TOXICOLOGICAL INFORMATION
Acute Toxicity/Irritation Studies (Finished Product)
Ingestion: Practically Non-Toxic
Oral (LD50 Rat) : 9,000 mg/kg body weight
Dermal: Slightly Toxic
Dermal (LD50 Rabbit) : > 2,000 mg/kg body weight
Inhalation: Not Available
Inhalation (LC50 Animal
Not Available) :
Eye Contact: Severe Irritant
Skin Contact: Not Available
Skin Sensitization: A skin sensitizer.
Reproductive/Developmental Effects
Chlorothalonil: No evidence of adverse developmental effects in rabbit and rat studies.
Chronic/Subchronic Toxicity Studies
In dogs, 1 years administration caused a significant decrease in body weight gain and
Chlorothalonil:
increases in absolute liver and kidney weights.
Neurotoxicity: No evidence in regulatory studies.
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Carcinogenicity
Chlorothalonil: No evidence of carcinogenicity in dogs after administration for up to one year. Treament related
increases in the incidence of renal tubular adenoma and carcinoma were observed in rats and male
mice. Squamous cell adenomas and carcinomas were also observed in the forestomach of both
species. The forestomach tumors seen in rodent studies are not relevant to human health, as
humans do not possess an anatomical equivalent of the rodent forestomach. The relevance of
renal tumors to human health is unclear, although metabolism data suggest that the dog, a species
that is resistant to chlorothalonil-induced renal injury, may be more representative of humans
than the rat. IARC identifies chlorothalonil as a 2B carcinogen (possibly carcinogenic to humans).
Other Toxicity Information
Studies on rats and mice have suggested that technical chlorothalonil (97%), when fed at high levels in the diet, may have
oncogenic potential to these laboratory animals. However, neither chlorothalonil nor its metabolites interact with DNA
and thus are not mutagenic. Tumor formation has been related to a non-genotoxic mechanism of action for which
threshold levels have been established in rats and mice. Comprehensive dietary and worker exposure studies have shown
exposure levels for humans to be well below these threshold levels. In addition, surveillance of chlorothalonil plant
workers for over twenty years has not demonstrated any increase in oncogenic potential to humans.
Toxicity of Other Components
Propylene Glycol
Reported to cause central nervous system depression (anesthesia, dizziness, confusion), headache and nausea.
Also, eye irritation may occur with lacrimation but no residual discomfort or injury. Prolonged contact to skin
may cause mild to moderate irritation and possible allergic reactions. Chronic dietary exposure caused kidney
and liver injury in experimental animals.
Silica, amorphous
Dusts in high concentrations may cause skin, eye and respiratory tract irritation.
Target Organs
Active Ingredients
Chlorothalonil: Lung, eye, kidney
Inert Ingredients
Propylene Glycol: CNS, skin, eye, kidney, liver
Silica, amorphous: Skin, eye, respiratory tract
12. ECOLOGICAL INFORMATION
Summary of Effects
Chlorothalonil:
Toxic to fish.
Eco-Acute Toxicity
Chlorothalonil: Bees LC50/EC50 > 181 ug/bee
Invertebrates (water flea) LC50/EC50 0.068 ppm
Fish (Trout) LC50/EC50 0.04 ppm
Fish (Bluegill) LC50/EC50 0.06 ppm
Birds (8-day dietary - Bobwhite Quail) LC50/EC50 > 5,200 ppm
Birds (8-day dietary - Mallard duck) LC50/EC50 > 5,200 ppm
Eco-Chronic Toxicity
Chlorothalonil: Not Available
Environmental Fate
Chlorothalonil:
No data available for the formulation. The information presented here is for the active ingredient, chlorothalonil. A
thorough review of environmental information is not possible in this document.
Persistence (Half-Life): Soil: 10 - 60 days. Water: Stable @ pH 5 - 7; 16 - 38 days @ pH 9.
Photolysis (Half-Life): Soil: Stable. Water: 65 days.
Leaching/Mobility: Low - Immobile (Koc = 850 - 7000).
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DACONIL WEATHERSTIK
Action in Water (after 24 hrs.): Sinks.
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
14. TRANSPORT INFORMATION
DOT Classification
Not regulated by DOT.
B/L Freight Classification
Fungicides, NOIBN, o/t poison
Comments
International Transportation
Environmentally Hazardous Substance, Liquid, N.O.S. (chlorothalonil, 54%), Class 9, UN3082, PGIII, Marine Pollutant
15. REGULATORY INFORMATION
EPCRA SARA Title III Classification
Acute Health Hazard
Section 311/312 Hazard Classes:
Chronic Health Hazard
Section 313 Toxic Chemicals: Chlorothalonil (54.0%) (CAS No. 1897-45-6)
California Proposition 65
Not Applicable
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
NFPA Hazard Ratings HMIS Hazard Ratings 0 Minimal
1 Slight
Health: 3
Health: 3
2 Moderate
Flammability: 1
Flammability: 1
3 Serious
Reactivity: 0
Instability: 0
4 Extreme
For non-emergency questions about this product call:
1-800-334-9481
Original Issued Date: 11/12/1998
Revision Date: Replaces: 09/20/2002
02/04/2003
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.
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DACONIL WEATHERSTIK
RSVP# : SCP-955-00312D
End of MSDS
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DACONIL WEATHERSTIK
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