Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 1/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Section 1. Substance/preparation
Substance number: 000000057524
Molecular formula: C(13) H(19) N(3) O(4)
Molecular weight: 281.35 g/mol
Chemical family: aniline derivative
Synonyms: pendimethalin (active ingredient)
Section 2. Composition/information on ingredients
CAS Number Content (W/W) Chemical name
40487-42-1 37.4 % pendimethalin
64742-94-5 44.64 % solvent naphtha
91-20-3 7.26 % naphthalene
10.74 % Proprietary ingredients
Section 3. Hazard identification
Emergency overview
CAUTION: KEEP OUT OF REACH OF CHILDREN.
KEEP OUT OF REACH OF DOMESTIC ANIMALS.
HARMFUL IF SWALLOWED.
HARMFUL IF ABSORBED THROUGH SKIN.
CAUSES EYE IRRITATION.
Avoid contact with the skin, eyes and clothing.
Wash thoroughly after handling.
Potential health effects
See Product Label for additional precautionary statements.
Primary routes of exposure
Routes of entry for solids and liquids include eye and skin contact, ingestion and inhalation.
Routes of entry for gases include inhalation and eye contact. Skin contact may be a route of
entry for liquefied gases.
Acute toxicity:
Slightly toxic after single ingestion. Slightly toxic after short-term skin contact. Relatively
nontoxic after shortterm inhalation.
Information on: Petroleum Distillates with Naphthalene
Inhalation may cause headache, confusion, and excitement. Inhalation may cause central
nervous system depression (effects include headache, weakness, drowsiness, lightheadedness,
vertigo, loss of consciousness), respiratory tract irritation, asphyxiation, cardiac stress and
coma.
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Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 2/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Ingestion may cause gastrointestinal irritation, nausea, vomiting, diarrhea, weakness, and
dizziness.
Ingestion results in cramps, nausea, vomiting and diarrhea, listlessness, bladder irritation and
brownish urine.
Aspiration may result in chemical pneumonitis, which may be fatal.
Information on: Aromatic 200 Solvent
At high oral doses in rats, this component caused damage to the stomach, liver, thyroid and
urinary bladder. These effects are not relevant to humans at occupational levels of exposure.
Irritation:
May cause slight irritation to the skin. May cause moderate but temporary irritation to the eyes.
Information on: Petroleum Distillates with Naphthalene
Skin contact may result in irritation, defatting and dermatitis. Vapors cause irritation to the
respiratory tract and the eyes.
Sensitization:
Skin sensitizing effects were not observed in animal studies.
Repeated dose toxicity:
Information on: pendimethalin
The substance is not considered to pose a carcinogenic risk at low human exposure levels.
Information on: Petroleum Distillates with Naphthalene
Overexposure may cause liver and kidney toxicity.
Exposure by ingestion or inhalation may cause hemolysis, anemia, fever, hemoglobinuria, and
jaundice.
Medical conditions aggravated by overexposure:
May aggravate existing skin conditions.
Potential environmental effects
Aquatic toxicity:
Very toxic (acute effect) to aquatic organisms.
Terrestrial toxicity:
Acutely harmful to terrestrial organisms.
Section 4. First-aid measures
General advice:
First aid providers should wear personal protective equipment to prevent exposure. Remove
contaminated clothing. Move person to fresh air. If person is not breathing, call 911 or
ambulance, then give artificial respiration, preferably mouth-to-mouth if possible. Call a poison
control center or physician for treatment advice. Have the product container or label with you
when calling a poison control center or doctor or going for treatment.
2
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 3/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
If inhaled:
Remove the affected individual into fresh air and keep the person calm. Assist in breathing if
necessary.
If on skin:
Rinse skin immediately with plenty of water for 15 - 20 minutes.
If in eyes:
Hold eyes open and rinse slowly and gently with water for 15 to 20 minutes. Remove contact
lenses, if present, after first 5 minutes, then continue rinsing.
If swallowed:
Rinse mouth and then drink plenty of water. Do not induce vomiting. Never induce vomiting or
give anything by mouth if the victim is unconscious or having convulsions. Immediate medical
attention required.
Note to physician
Symptoms: orange-red colored urine caused by dye (not associated with
methemoglobinemia).
Hazards: Vomiting may cause aspiration pneumonia due to the ingredients. Because of the
increased risk of chemical pneumonia or pulmonary edema caused by aspiration of the
hydrocarbon solvent, vomiting should be induced only under professional supervision.
Section 5. Fire-fighting measures
Flash point: approx. 208 掳F (ASTM D93)
Autoignition: approx. 707 掳F
Suitable extinguishing media:
Foam, dry extinguishing media, carbon dioxide, water spray.
Hazards during fire-fighting:
Carbon monoxide, Carbon dioxide, nitrogen oxides.
If product is heated above decomposition temperature, toxic vapors will be released. The
substances/groups of substances mentioned can be released if the product is involved in a fire.
Protective equipment for fire-fighting:
Firefighters should be equipped with self-contained breathing apparatus and turn-out gear.
Further information:
Evacuate area of all unnecessary personnel. Contain contaminated water/firefighting water. Do
not allow to enter drains or waterways.
NFPA Hazard codes:
Health: 1 Fire: 1 Reactivity: 1 Special:
3
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 4/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Section 6. Accidental release measures
Personal precautions:
Take appropriate protective measures. Clear area. Shut off source of leak only under safe
conditions. Extinguish sources of ignition nearby and downwind. Ensure adequate ventilation.
Wear suitable personal protective clothing and equipment.
Environmental precautions:
Do not discharge into the subsoil/soil. Do not discharge into drains/surface waters/groundwater.
Contain contaminated water/firefighting water.
Cleanup:
Dike spillage. Pick up with suitable absorbent material. Place into suitable containers for reuse
or disposal in a licensed facility. Spilled substance/product should be recovered and applied
according to label rates whenever possible. If application of spilled substance/product is not
possible, then spills should be contained, solidified, and placed in suitable containers for
disposal. After decontamination, spill area can be washed with water. Collect wash water for
approved disposal.
Section 7. Handling and storage
Handling
General advice:
RECOMMENDATIONS ARE FOR MANUFACTURING, COMMERCIAL BLENDING, AND
PACKAGING WORKERS. PESTICIDE APPLICATORS & WORKERS must refer to the Product
Label and Directions for Use attached to the product for Agricultural Use Requirements in
accordance with the EPA Worker Protection Standard 40 CFR part 170. Ensure adequate
ventilation. Provide good ventilation of working area (local exhaust ventilation if necessary).
Keep away from sources of ignition - No smoking. Keep container tightly sealed. Protect
contents from the effects of light. Protect against heat. Protect from air. Handle and open
container with care. Do not open until ready to use. Once container is opened, content should
be used up as soon as possible. Avoid aerosol formation. Avoid dust formation. Provide means
for controlling leaks and spills. Do not return residues to the storage containers. Follow label
warnings even after container is emptied. The substance/ product may be handled only by
appropriately trained personnel. Avoid all direct contact with the substance/product. Avoid
contact with the skin, eyes and clothing. Avoid inhalation of dusts/mists/vapors. Wear suitable
personal protective clothing and equipment.
Protection against fire and explosion:
No explosion proofing necessary.
4
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 5/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Storage
General advice:
Keep only in the original container in a cool, dry, well-ventilated place away from ignition
sources, heat or flame. Protect containers from physical damage. Protect against
contamination. The authority permits and storage regulations must be observed.
Storage incompatibility:
General: Segregate from incompatible substances. Segregate from foods and animal feeds.
Segregate from textiles and similar materials.
Storage stability:
If substance/product crystallizes, thaw at room temperature.
Temperature tolerance
Protect from temperatures below: 40 掳F
The product can crystallize below the limit temperature.
Section 8. Exposure controls and personal protection
Users of a pesticidal product should refer to the product label for personal protective
equipment requirements.
Components with workplace control parameters
OSHA PEL 10 ppm 50 mg/m3; naphthalene
ACGIH TWA value 10 ppm; STEL value 15 ppm; Skin
Designation;
Advice on system design:
Whenever possible, engineering controls should be used to minimize the need for personal
protective equipment.
Personal protective equipment
RECOMMENDATIONS FOR MANUFACTURING, COMMERCIAL BLENDING, AND
PACKAGING WORKERS:
Respiratory protection:
Wear respiratory protection if ventilation is inadequate. Wear a NIOSH-certified (or equivalent)
TC23C Chemical/Mechanical type filter system to remove a combination of particles, gas and
vapors. For situations where the airborne concentrations may exceed the level for which an air
purifying respirator is effective, or where the levels are unknown or Immediately Dangerous to
Life or Health (IDLH), use NIOSHcertified full facepiece pressure demand self-contained
breathing apparatus (SCBA) or a full facepiece pressure demand supplied-air respirator (SAR)
with escape provisions.
Hand protection:
Chemical resistant protective gloves, Protective glove selection must be based on the user's
assessment of the workplace hazards.
5
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 6/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Eye protection:
Safety glasses with side-shields. Tightly fitting safety goggles (chemical goggles). Wear face
shield if splashing hazard exists.
Body protection:
Body protection must be chosen depending on activity and possible exposure, e.g. head
protection, apron, protective boots, chemical-protection suit.
General safety and hygiene measures:
Wear long sleeved work shirt and long work pants in addition to other stated personal protective
equipment. Work place should be equipped with a shower and an eye wash. Handle in
accordance with good industrial hygiene and safety practice. Personal protective equipment
should be decontaminated prior to reuse. Gloves must be inspected regularly and prior to each
use. Replace if necessary (e.g. pinhole leaks). Take off immediately all contaminated clothing.
Store work clothing separately. Hands and/or face should be washed before breaks and at the
end of the shift. No eating, drinking, smoking or tobacco use at the place of work. Keep away
from food, drink and animal feeding stuffs.
Section 9. Physical and chemical properties
Form: liquid
Odor: aromatic, moderate odor
Color: dark amber
pH value: 6 - 7 ( 20 - 40 g/l)
Boiling point: approx. 244 掳C ( 760 mmHg)
Density: 1.06 g/cm3
8.858 lb/USg
Section 10. Stability and reactivity
Conditions to avoid:
Avoid all sources of ignition: heat, sparks, open flame. Avoid extreme temperatures. Avoid
prolonged exposure to extreme heat. Avoid contamination. Avoid electro-static discharge. Avoid
prolonged storage.
Substances to avoid:
Oxidizing agent, strong alkalies.
Hazardous reactions:
The product is chemically stable.
Decomposition products:
Hazardous decomposition products: No hazardous decomposition products if stored and
handled as prescribed/indicated. Prolonged thermal loading can result in products of
degradation being given off.
6
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 7/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Thermal decomposition:
Approx. 244 掳C
Possible thermal decomposition products: carbon monoxide, Carbon dioxide, Nitrogen oxide.
Stable at ambient temperature. If product is heated above decomposition temperature toxic
vapors may be released. If product is heated above decomposition temperature hazardous
fumes may be released. No decomposition if stored and handled as prescribed/indicated.
Corrosion to metals:
No corrosive effect on metal.
Section 11. Toxicological information
Acute toxicity
Oral:
LD50/rat/male/female: 3,956 mg/kg
Inhalation:
LC50/rat: > 5.35 mg/l / 4 h
Dermal:
LD50/rat/male/female: > 2,000 mg/kg
Skin irritation:
rabbit: Slightly irritating.
rabbit: Mildly irritating.
Eye irritation:
rabbit: Slightly irritating.
rabbit: Mildly irritating.
Sensitization:
guinea pig: Non-sensitizing.
Chronic toxicity
Genetic toxicity:
Information on: pendimethalin
No mutagenic effect was found in various tests with microorganisms and mammals.
----------------------------------
Carcinogenicity:
Information on: pendimethalin
In long-term studies in mice in which the substance was given by feed, a carcinogenic effect
was not observed. In long-term studies in rats the substance induced thyroid tumors.
A marked decrease in body weight gain and an increase in benign thyroid proliferative lesions
were observed in the lifetime rat study at the highest dose tested. The substance is not
considered to pose a carcinogenic risk at low human exposure levels.
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Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 8/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Reproductive toxicity:
Information on: pendimethalin
The results of animal studies gave no indication of a fertility impairing effect.
----------------------------------
Developmental toxicity/teratogenicity:
Information on: pendimethalin
No indications of a developmental toxic / teratogenic effect were seen in animal studies.
----------------------------------
Experiences in humans:
Pendimethalin is a strongly orange-red compound - virtually an aniline dye. Cases have been
described of of orange-yellow coloration of urine following heavy exposure of workers to the
dust of pendimethalin. Despite its structure as both a nitro-compound and aromatic amine,
exposure to pendimethalin is NOT associated with methemoglobinemia.
Other information:
Misuse can be harmful to health.
Section 12. Ecological information
Information on: pendimethalin
Evaluation: Not readily biodegradable (by OECD criteria).
Information on: pendimethalin
Acute and prolonged toxicity to fish:
Rainbow trout/LC50 (96 h): 0.89 mg/l
Rainbow trout/LC50: = 0.14 ppm
----------------------------------
Information on: pendimethalin
Acute toxicity to aquatic invertebrates:
Daphnia magna/EC50 (48 h): 0.977 mg/l
Daphnia magna/EC50: 0.28 ppm
----------------------------------
Information on: pendimethalin
Toxicity to aquatic plants:
green algae/EC50 (72 h): 0.0081 mg/l
algae/EC50: 0.055 ppm
----------------------------------
Information on: pendimethalin
Other terrestrial non-mammals:
mallard duck/LD50: 1,421 mg/kg
Acutely harmful to terrestrial organisms.
Honey bee/LD50: 49.8 ug/bee
Acutely harmful to terrestrial organisms.
----------------------------------
8
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 9/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Section 13. Disposal considerations
Waste disposal of substance:
Pesticide wastes are regulated. Improper disposal of excess pesticide, spray mix or rinsate is a
violation of federal law. If pesticide wastes cannot be disposed of according to label
instructions, contact the State Pesticide or Environmental Control Agency or the Hazardous
Waste representative at the nearest EPA Regional Office for guidance.
Container disposal:
Rinse thoroughly at least three times (triple rinse) in accordance with EPA recommendations.
Consult state or local disposal authorities for approved alternative procedures such as container
recycling. Recommend crushing, puncturing or other means to prevent unauthorized use of
used containers.
RCRA: D028 The waste codes are manufacturer's recommendations based on the designated
use of the product. Other use and special waste disposal treatment on customer's location may
require different waste-code assignments.
Section 14. Transport information
Reference Bill of Lading
Section 15. Regulatory information
Federal Regulations
Registration status:
TSCA, US released / exempt
OSHA hazard category: IARC 1, 2A or 2B carcinogen, NTP listed carcinogen, Chronic target
organ effects reported, Acute target organ effects reported, ACGIH TLV established, Toxic -
inhalation
CERCLA RQ CAS Number Chemical name
100 LBS 91-20-3; 107-06-2 naphthalene; 1,2-dichloroethane
SARA hazard categories (EPCRA 311/312): Acute, Chronic
SARA 313:
CAS Number Chemical name
91-20-3 naphthalene
40487-42-1 pendimethalin
State regulations
State RTK
CAS Number Chemical name State RTK
91-20-3 naphthalene MA, NJ, PA
16. Other information
Refer to product label for EPA registration number.
9
Material Safety Data Sheet
Tenkoz Inc. 24 Hour Emergency Response Information:
100 North Point Center East, Suite 330 CHEMTREC: (800) 424-9300
Alpharetta, GA 30022 BASF HOTLINE: (800) 832-HELP
ACUMEN Herbicide
Revision date: 2005/06/29 Page: 10/10
Version: 1.2 (30256191/MDS_CPA_US/EN)
Recommended use: crop protection product
Local contact information
Product Stewardship
770-343-8509
ACUMEN is a trademark of Tenkoz Inc.
IMPORTANT: WHILE THE DESCRIPTIONS, DESIGNS, DATA AND INFORMATION
CONTAINED HEREIN ARE PRESENTED IN GOOD FAITH AND BELIEVED TO BE
ACCURATE, IT IS PROVIDED FOR YOUR GUIDANCE ONLY. BECAUSE MANY FACTORS
MAY AFFECT PROCESSING OR APPLICATION/USE, WE RECOMMEND THAT YOU MAKE
TESTS TO DETERMINE THE SUITABILITY OF A PRODUCT FOR YOUR PARTICULAR
PURPOSE PRIOR TO USE. NO WARRANTIES OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, ARE MADE REGARDING PRODUCTS
DESCRIBED OR DESIGNS, DATA OR INFORMATION SET FORTH, OR THAT THE
PRODUCTS, DESIGNS, DATA OR INFORMATION MAY BE USED WITHOUT INFRINGING
THE INTELLECTUAL PROPERTY RIGHTS OF OTHERS. IN NO CASE SHALL THE
DESCRIPTIONS, INFORMATION, DATA OR DESIGNS PROVIDED BE CONSIDERED A
PART OF OUR TERMS AND CONDITIONS OF SALE. FURTHER, YOU EXPRESSLY
UNDERSTAND AND AGREE THAT THE DESCRIPTIONS, DESIGNS, DATA, AND
INFORMATION FURNISHED BY TENKOZ HEREUNDER ARE GIVEN GRATIS AND TENKOZ
ASSUMES NO OBLIGATION OR LIABILITY FOR THE DESCRIPTION, DESIGNS, DATA AND
INFORMATION GIVEN OR RESULTS OBTAINED, ALL SUCH BEING GIVEN AND
ACCEPTED AT YOUR RISK.
END OF MATERIAL SAFETY DATA SHEET
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