MATERIAL SAFETY DATA SHEET

Product Name: WEATHERBLOK XT

1. PRODUCT IDENTIFICATION
3. COMPOSITION/INFORMATION ON INGREDIENTS
2. HAZARDS IDENTIFICATION
4. FIRST AID MEASURES
Product Name: WEATHERBLOK XT
Product No.: A12720G
EPA Signal Word: Caution
Health and Environmental
Slightly irritating to the eyes. The active ingredient is designed to cause bleeding after repeated
ingestion.
Hazardous Decomposition Products
None known.
Physical Properties
Appearance: Blue solid
Odor: Slight cereal and wax odor
Unusual Fire, Explosion and Reactivity Hazards
During a fire, irritating and possibly toxic gases may be generated by thermal decomposition or
combustion.
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.
Product Name: WEATHERBLOK XT
EPA Registration Number(s): 100-1055
Ingredients not precisely identified are proprietary or non-hazardous. Values are not product
specifications.
Syngenta Hazard Category: D
Section(s) Revised: 3
Syngenta Crop Protection, Inc.
Post Office Box 18300
In Case of Emergency, Call
1-800-888-8372
Greensboro, NC 27419
CAS No.: 56073-10-0
Chemical Name:
3-[3-(4'-bromo[1,1'-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthalenyl]-4-hydroxy-2H-1-benzopyran-
2-one
Chemical Class: A coumarin-type anticoagulant rodenticide
Active Ingredient(%): Brodifacoum Technical (0.005%)
Material
NTP/IARC/OSHA
Other Carcinogen
OSHA
PEL
ACGIH
TLV
Paraffin Wax Not Established 2 mg/m³ TWA (fume) 2 mg/m³ TWA No
(fume) **
Oat Flour 10 mg/m³ PEL 4 mg/m³ TLV Not Established No
Brodifacoum Technical (0.005%) Not Established Not Established 0.002 mg/m³ TWA No
***
** recommended by NIOSH
*** Syngenta Occupational Exposure Limit (OEL)
Product Name: WEATHERBLOK XT Page: 1
Lower: Not Applicable Upper: Not Applicable
5. FIRE FIGHTING MEASURES
If swallowed: Call Syngenta (800-888-8372), a poison control center or doctor immediately for
treatment
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, if
present, after 5 minutes, then continue rinsing eye. Call Syngenta (800-888-8372), a poison control
center or
doctor for treatment advice.
If on skin or clothing: Take off contaminated clothing. Wash skin with soap and water.
Not applicable.
Notes to Physician
Medical Condition Likely to be Aggravated by Exposure
As stated above this product contains anticoagulants with an effect similar to that of warfarin. The
anticoagulant interferes
with the synthesis of prothrombin. Significant exposure (e.g. ingestion) can cause anticoagulation
effects and could
aggravate existing blood clotting disorders.
Fire and Explosion
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.
Flammability: Not Applicable
> 375°F (paraffin wax) Method: PMCC
Not Available
Flash Point (Test Method):
Flammable Limits (% in Air):
Autoignition Temperature:
Ingestion:
Eye Contact:
Skin Contact:
Inhalation:
6. ACCIDENTAL RELEASE MEASURES
7. HANDLING AND STORAGE
In Case of Spill or Leak
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.
Control the spill at its source. Clean up spills immediately, observing precautions outlined in Section
8. Sweep up material
and place in a compatible disposal container. Once all material is collected, seal container and
arrange for disposition.
This product contains anticoagulants with an effect similar to warfarin in that they act by interfering
with the synthesis of
prothrombin. The specific measure of effect is the prothrombin time. Note this may not become
prolonged until 12-18
hours after ingestion. The specific antidote is Vitamin K1 (Phytomenandione BP).
Antidote must be administered under medical supervision. Initially, antidote should be given by
injection (10-20 mg, or
0.25 mg/kg for children, by slow intravenous infusion at a rate not exceeding 1 mg/minute. In severe
cases the use of fresh
frozen plasma may be required). Maintenance treatment is given orally (40 mg/day in divided doses
for adults; up to 20
mg/day in divided doses for children). The prothrombin time and the hemoglobin should be
monitored. Patients should be
kept under medical supervision until the prothrombin time has been normal for 3 consecutive days.
Oral treatment may
need to be continued for several months (20 mg/day in divided doses for adults, and up to 20
mg/day in divided doses for
children). (For animal cases the dose is 2-5 mg/kg).
Each 20 g bar contains 1 mg of brodifacoum.
Further information is available from the Syngenta emergency number provided in this document.
Product Name: WEATHERBLOK XT Page: 2
11. TOXICOLOGICAL INFORMATION
Acute Toxicity/Irritation Studies (Finished Product)
Reproductive/Developmental Effects
Ingestion:
Dermal:
Inhalation:
Eye Contact:
Skin Contact:
Skin Sensitization:
Oral (LD50 Rat) :
See "Other Toxicity Information", Sec. 11
See "Other Toxicity Information", Sec. 11
Not Available
Dermal (LD50 Rabbit) :
Inhalation (LC50 Rat) :
> 5000 mg/kg body weight
See "Other Toxicity Information", Sec. 11
See "Other Toxicity Information", Sec. 11
9. PHYSICAL AND CHEMICAL PROPERTIES
Blue solid
Slight cereal and wax odor
10. STABILITY AND REACTIVITY
Stability: Stable under normal use and storage conditions.
Hazardous Polymerization: Will not occur.
Conditions to Avoid: None known.
None known.
Melting Point:
Boiling Point:
Specific Gravity/Density:
130 °F (paraffin wax)
Not Applicable
1.15 g/ml
Appearance:
Odor:
pH: Not Available
Solubility in H2O
Vapor Pressure
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. Wash thoroughly with soap and water after handling.
Eye protection is not required for normal handling. Where eye contact is likely, wear tight-fitting
chemical
goggles.
Gloves are not required for normal handling. Where heavy contact is likely, wear chemical resistant
(such as
nitrile or butyl) gloves.
Respiratory protection is not required for normal handling. In the event of an unusual dust exposure,
use
engineering controls or a NIOSH-certified particulate respirator (N, P, R or HE filter) to keep exposure
below the Occupational Exposure Limit.
Ingestion:
Eye Contact:
Skin Contact:
Inhalation:
THE FOLLOWING RECOMMENDATIONS FOR EXPOSURE CONTROLS/PERSONAL PROTECTION
ARE INTENDED FOR
THE MANUFACTURE, FORMULATION AND PACKAGING OF THIS PRODUCT.
FOR COMMERCIAL APPLICATIONS AND/OR ON-FARM APPLICATIONS CONSULT THE PRODUCT
LABEL.
Hazardous Decomposition Products:
Materials to Avoid: None known.
Brodifacoum Technical: Not teratogenic, embryotoxic or fetotoxic in rats or rabbits at doses up to
0.02 mg/kg/day - the
dose causing excessive maternal toxicity.
Brodifacoum Technical: Insoluble
Brodifacoum Technical: 6 x 10(-6) mmHg @ 68°F (20°C)
Product Name: WEATHERBLOK XT Page: 3
12. ECOLOGICAL INFORMATION
13. DISPOSAL CONSIDERATIONS
Chronic/Subchronic Toxicity Studies
Carcinogenicity
Toxicity of Other Components
Environmental Fate
Ecotoxicity Effects
Disposal
Target Organs
Other Toxicity Information
Systemically toxic concentrations of this product will probably not be absorbed through human skin.
Because this product is a wax block, inhalation is not expected to be a normal route of exposure.
No irritation is likely to develop following contact with human eyes.
Irritation will probably not develop following contact with human skin.
Effects of overexposure are those of anticoagulant overdose, i.e., reduced blood clotting ability with
spontaneous
bleeding in various organs. Body accumulation can result from repeated exposures since the
half-life of brodifacoum is >
100 days. Individuals with blood clotting disorders may be more susceptible to overexposure effects.
Active Ingredients
Inert Ingredients
Non-genotoxic in a range of assays.
Brodifacoum Technical: The biological half-life for brodifacoum in body tissue in rats is > 100 days.
Adverse clinical
effects can develop from body accumulation. Prolonged prothrombin time, depression, pallor,
subcutaneous hemorrhage,
bleeding of nose or gums, gastrointestinal hemorrhage, cerebral hemorrhage, shock and death can
develop following
exposures.
No neurotox studies have been conducted.
Brodifacoum Technical: Unlikely to be carcinogenic.
In normal use this product does not present a serious health risk and ingestion has no adverse
effects.
Oat Flour
Inhalation of fumes may cause nausea and irritation. Good laboratory procedures are recommended
when
handling this compound. This is expected to be a low hazard for usual industrial handling.
Paraffin Wax
The information presented here is for the active ingredient, brodifacoum.
Not persistent in soil. Stable in water. Immobile in soil. Sinks in water (after 24 h).
Brodifacoum Technical:
Brodifacoum Technical:
Fish (Rainbow Trout) 96-hour LC50 0.02 ppm
Invertebrate (Water Flea) Daphnia Magna 48-hour EC50 0.98 ppm
Bird (Mallard Duck) 21-day LD50 0.26 mg/kg
Brodifacoum Technical: Blood
Oat Flour: Lung
Paraffin Wax: Not Applicable
Product Name: WEATHERBLOK XT Page: 4
1
1
0 0
1
1
14. TRANSPORT INFORMATION
15. REGULATORY INFORMATION
Do not reuse empty container except for holding additional product.
Characteristic Waste: Not Applicable
Listed Waste: Not Applicable
DOT Classification
Ground Transport - NAFTA
Not regulated.
B/L Freight Classification
Exterminator, Vermin, O/T Poison
Comments
International Transportation
Environmentally Hazardous Substance, Solid, N.O.S. (brodifacoum), Class 9, UN3077, PGIII
5 kg and smaller package sizes - Limited Quantity
California Proposition 65
Not Applicable
RCRA Hazardous Waste Classification (40 CFR 261)
Not Applicable
TSCA Status
Exempt from TSCA, subject to FIFRA
EPCRA SARA Title III Classification
Section 311/312 Hazard Classes:
Section 313 Toxic Chemicals:
16. OTHER INFORMATION
NFPA Hazard Ratings
9/20/2000
11/6/2009 5/7/2009
Health:
Flammability:
Instability:
Replaces:
Original Issued Date:
Revision Date:
CERCLA/SARA 302 Reportable Quantity (RQ)
None
Not Applicable
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.
0 Minimal
1 Slight
2 Moderate
3 Serious
4 Extreme
HMIS Hazard Ratings
Health:
Flammability:
Reactivity:
Acute Health Hazard
For non-emergency questions about this product call:
1-800-334-9481
End of MSDS
Product Name: WEATHERBLOK XT Page: 5