COUNTER(R) 20CR SOIL INSECTICIDE
AMERICAN CYANAMID CO.
WAYNE, NJ 07470
EMERGENCY TELEPHONE:201-835-3100 (U.S.A.)
MSDS NO. AG09977-5
CAS NO. 13071-79-9
DATE: APR 27, 1992
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PRODUCT IDENTIFICATION
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TRADE NAME: COUNTER(R) 20CR Soil Insecticide
SYNONYMS: (S-[[(1,1-dimethylethyl)thio]methyl]O,O-diethyl
phosphoradithioate; COUNTER(R) 20CR LOCK' n LOAD^TM; Terbufos
CHEMICAL FAMILY: Organophosphate
MOLECULAR FORMULA: C9H21O2PS3
MOLECULAR WEIGHT: 288.430
USAGE: Insecticide
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WARNING STATEMENTS
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DANGER! KEEP OUT OF REACH OF CHILDREN. FATAL IF SWALLOWED. MAY BE ABSORBED
THROUGH THE SKIN. DO NOT GET IN EYES, ON SKIN, OR ON CLOTHING. REPEATED
EXPOSURE TO SKIN MAY, WITHOUT VISIBLE EXTERNAL SYMPTOMS, PROGRESSIVELY
INCREASE SUSCEPTIBILITY TO POISONING.
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INGREDIENTS
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COMPONENT CAS. NO. % W/W PEL/TLV
---------------------- ------------------ ------------ ---------------------
Inerts 79.30 None Established
Terbufos 13071-79-9 20.70 0.05 mg/m^3 (Skin)
0.2 mg/m^3 (STEL)
---------------------- ------------------ ------------ ---------------------
REFERENCE: Inerts: None
Terbufos: Cyanamid - 1989
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PHYSICAL PROPERTIES
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APPEARANCE AND ODOR: Brown small pellets, mercaptan-like odor.
BOILING POINT: Not Applicable
MELTING POINT: Not Available
VAPOR PRESSURE: 1.8 X 10^-4 mm Hg at 25C
SPECIFIC GRAVITY: Not Available
VAPOR DENSITY: Not Applicable
% VOLATILITY (BY VOL.): Not Available
OCTANOL/H2O PARTITION COEF.: Not Applicable
PH: Not Applicable
SATURATION IN AIR (BY VOL.): Not Applicable
EVAPORATION RATE: Not Applicable
SOLUBILITY IN WATER: 10-15 ppm [ai]
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FIRE AND EXPLOSION HAZARD INFORMATION
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FLASH POINT: Not Available
FLAMMABLE LIMITS (% BY VOL.): Not Available
AUTOIGNITION TEMP.: Not Available
DECOMPOSITION TEMP: Not Available
FIRE EXTINGUISHING MEDIA: Use water, foam, dry chemical or carbon dioxide
to extinguish fires.
FIRE CONTROL TACTICS:
Wear self-contained, positive pressure breathing apparatus and full fire
fighting protective clothing.
Keep unnecessary people away. Use as little water as possible. Dike area of
fire to prevent pesticide run-off. Use spray or fog - solid stream may
cause spreading.
Conduct fire fighting and rescue operations from upwind of the fire area.
Evacuate people downwind who may come in contact with smoke, fumes, or
contaminated surfaces. Do not decontaminate personnel or equipment,
or handle broken packages or containers without protective equipment
as specified in the Exposure Control Section. Decontaminate emergency
personnel with soap and water before leaving the fire area.
Avoid breathing vapors and fumes from burning materials. Alert medical
personnel to be ready to treat for organophosphate pesticide poisoning.
Control run-off water - if water enters a drainage system, advise the
authorities downstream.
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NFPA HAZARD RATING
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(As Recommended by American Cyanamid Co.)
(As Recommended by American Cyanamid Co.)
0 Least Health 3
1 Slight Flammability 1
2 Moderate Reactivity 0
3 High Special
4 Severe
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REACTIVITY DATA
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STABILITY: Stable
CONDITIONS TO AVOID: Heat, strong oxidizers, and alkaline material.
POLYMERIZATION: Will not occur
INCOMPATIBLE MATERIALS: Avoid contact with alkalies and strong oxidizers.
HAZARDOUS DECOMPOSITION PRODUCTS: Combustion may produce oxides of carbon,
phosphorous, sulfur, hydrogen sulfide, mercaptans, and HCl.
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HEALTH HAZARD INFORMATION
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TOXICITY DATA AND EFFECTS OF OVEREXPOSURE:
ACUTE TOXICITY DATA:
The acute oral LD50 for the combined sexes in rats was calculated to be
29mg/kg indicating that the materials are highly toxic by the oral route of
administration.
The acute dermal LD50 in male rabbits was shown to be 182 mg/kg indicating
that the material is highly toxic by single skin application.
The product is mildly irritating to rabbit eyes and non-irritating to
rabbit skin.
CHRONIC TOXICITY DATA:
Mutagenicity: No mutagenic activity was observed in COUNTER Tech by all
test methods used. These included Bacterial/Microsome Reverse Mutation
(Ames) Test, in vitro Chinese Hamster Ovary Cells/Hypoxanthine Guanine
Phosphoribosyl Transferase (HGPRT) Mutation Assay, Chromosome Aberrations
in Chinese Hamster Ovary Cells, Rat Hepatocyte Primary Culture/DNA Repair
Test, and Acute in vivo Cytogenetics Assay in Rats.
Teratogenicity: No fetotoxic effects were found in any of the dose levels
tested on rats, rabbits, mallard duck and bobwhite quail. The reproductive
studies in the rabbit, mallard and bobwhite did show a small degree of
maternal toxicity with a no observable effect limit (NOEL) 0.4 mg/kg, 15ppm
and 30ppm respectively.
Carcinogenicity: No oncogenic effects were observed at all dosage levels
tested in rats and mice.
Terbufos (the active ingredient in COUNTER) is not listed as a human
carcinogen by IARC, OSHA or NTP.
Note: All chronic toxicity testing is done on the technical material only.
There is no information available on the toxicity of the formulations
relative to that of the technical material.
EMERGENCY AND FIRST AID PROCEDURES:
IF ON SKIN: Immediately remove contaminated clothing and wash skin
thoroughly with soap and water. Get medical attention.
IF SWALLOWED: Drink 1 or 2 glasses of water and induce vomiting by sticking
finger down throat or by giving syrup of ipecac, 1 oz. Repeat until vomit
is clear. Never give anything by mouth to an unconscious person. Get
medical attention.
IF IN EYES: Flush immediately with plenty of water. Get medical attention.
IF INHALED: Remove victim to fresh air. If not breathing, give artificial
respiration, preferably mouth-to-mouth. If breathing is difficult, give
oxygen. Get medical attention.
CALL A PHYSICIAN AT ONCE IN ALL CASES OF SUSPECTED POISONING.
NOTES TO PHYSICIAN: The active ingredient is a cholinesterase inhibitor.
Warning symptoms include weakness, headache, tightness of chest, nausea,
vomiting, diarrhea, and abdominal cramps.
Give atropine intramuscularly or intravenously, depending on severity of
poisoning, 2 to 4 mg every 10 minutes until fully atropinized as shown by
dilated pupils, dry flushed skin and tachycardia. Twenty to 30 mg or more
may be required during the first 24 hours.
Never give opiates or phenothiazine tranquilizers.
Clear chest by postural drainage. Artificial respiration or administration
of oxygen may be necessary.
Observe patient continuously for at least 48 hours.
Allow no further exposure to any cholinesterase inhibitors until
cholinesterase regeneration has taken place as determined by blood tests.
Pralidoxime chloride (2-PAM: PROTOPAM chloride) may be effective as an
adjunct to atropine. Use according to label directions.
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EXPOSURE CONTROL METHODS
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During formulation of this product, the following good industrial hygiene
practice is recommended:
Provide adequate local ventilation and maintain Permissible Exposure Limit
(PEL) below the level recommended for the various components of the
product. If dust concentrations exceed the recommended PEL, an approved
pesticide respirator should be worn until engineering controls are
achieved.
Chemical goggles or some other form of eye protection must be worn to
prevent exposure to the eyes. Wear rubber gloves when handling this
material. When potential exposure to this organophosphate product exists,
wear boots, a respirator, and appropriate protective clothing made of PVC
resistant material.
Rubber gloves should be washed with soap and water after each use. Do not
wear the same gloves for other work. Replace gloves frequently.
Administer a cholinesterase blood testing program at the workplace when
working with organophosphates. Biological monitoring in the form of whole
blood cholinesterase activity is highly recommended in situations where
there is potential for regular low-level exposure to product. The frequency
of monitoring and the action levels at which suspension and re-exposure
to product may take place should be at the discretion of an occupational
physician knowledgeable in organophosphate hygiene. It is imperative in any
such monitoring program that genuine pre-exposure baseline determinations
of cholinesterase activity be made four months prior to exposure.
In case of contact, immediately remove clothing and wash skin thoroughly
with soap and water. Launder clothing before reuse. Shower at the end of
the work day and change clothing. Do not eat, smoke, or drink at the
workplace.
End users should wear a face-mask or other respiratory equipment while
emptying bags into the hopper. Pour downwind and allow as little free-fall
as possible while emptying bags into equipment. DO NOT BREATHE THE DUST.
For end users, please refer to the product label for personal protective
clothing/equipment.
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SPILL OR LEAK PROCEDURES
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Wearing appropriate protective clothing and equipment (see "Exposure
Control" section), shovel/sweep spilled material into covered containers
for proper disposal (see "Waste Disposal" section), or reuse if possible.
Decontaminate spill area and tools several times with a solution of
85% water, 10% bleach, and 5% isopropyl alcohol. Contain and absorb
decontamination solution with inert absorbents (e.g. granular clay), and
place into the same disposal container as spilled material.
Depending on the quantity released to the environment, notifications
to regulatory authorities may be required (see "Additional Regulatory
Information" section). If spill is to a water body, immediately notify
applicable authorities downstream, so that contingencies can be taken, if
necessary.
WASTE DISPOSAL:
To avoid disposal, end users should attempt to utilize the product
completely according to label instructions. If this is not possible, handle
with care, and dispose in a safe manner.
Empty containers may retain some product residues. DO NOT REUSE. Triple
rinse, render container unusable by crushing and/or puncturing, and dispose
in a safe manner.
This product contains terbufos, and can be toxic. It is the ultimate
responsibility of the product user to determine at the time of disposal
whether the product (and/or "empty" container residue) meets any other
hazardous waste criteria. Follow all applicable Federal, State, Provincial,
and Local regulations regarding waste management methods.
Cyanamid's recommended disposal method for this product is: Incineration.
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SPECIAL PRECAUTIONS
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HANDLING AND STORAGE: Open dumping is prohibited. Make sure the hoppers
are emptied while still in the field. Keep all unprotected persons out of
operating areas.
Do not contaminate water, food, or feed by storage or disposal. Store in a
secure, dry, well-ventilated separate room, building or covered area.
Not for use or storage in or around the home.
Keep away from sources of ignition and protect from exposure to fire and
heat.
Segregate from oxidizers and incompatible materials listed in the
Reactivity Data Section.
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ADDITIONAL REGULATORY INFORMATION
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SARA Title III Data
Section 311 and 312 Hazard Categories:
Immediate Health Hazard - Y
Delayed Health Hazard - N
Fire Hazard - N
Reactive Hazard - N
Sudden Pressure Release Hazard - N
Section 302 Extremely Hazardous Substances - Terbufos
Section 313: Toxic Chemicals - None
CERCLA Reportable Quantity:
COUNTER(R) 20CR Soil Insecticide: None
RCRA Hazardous Waste Code(s) And Statement(s)
COUNTER(R) 20CR Soil Insecticide - None known
It is the responsibility of the waste generator to determine if any
hazardous waste code(s) apply, prior to disposal.
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APPENDIX
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ENVIRONMENTAL HAZARDS: This product is toxic to fish, birds and other
wildlife. Treated granules exposed on soil surface may be hazardous to
birds and other wildlife. Do not apply directly to water or wetlands.
Run-off from treated areas may be hazardous to aquatic organisms in
neighboring areas. Do not contaminate water by cleaning of equipment or
disposal of wastes. Cover or incorporate into the soil any granules that
are spilled.
The information and statements herein are believed to be reliable but are
not to be construed as a warranty or representation for which we assume
legal responsibility. Users should undertake sufficient verification and
testing to determine the suitability for their own particular purpose of
any information or products referred to herein. NO WARRANTY OF FITNESS FOR
A PARTICULAR PURPOSE IS MADE.
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SOURCE AND DATE INFORMATION
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SHEET NO.: AG09977-5
DATE: APR 27, 1992