MATERIAL SAFETY DATA SHEET
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Updated 2008
Bren
1. PRODUCT IDENTIFICATION
Product Name : BREN ?PARAQUAT 24% S.L.
Signal word: DANGER-POISON
I
Toxicity Class:
Paraquat dichloride
Common name:
1, 1'-Dimethyl-4, 4'-bipyridilium dichloride
Chemical name:
1910-42-5
CAS no:
257.24
Molecular weight:
C12H14Cl2N2
Empirical formula:
Herbicide
Recommended use:
Supplier: Agriance, 8 Hamelacha St. P.O. Box 8213, Netanya 42293, Israel.
Telephone : 972-9-865-6454 Facsimile: 972-9-865-4278
In Case of Emergency, call: 972-9-865-6454
2. COMPOSITION / INFORMATION ON INGREDIENTS
Content (W/W)
Ingredient
24%
Paraquat dichloride:
Q.S.
Inert ingredients:
3. HAZARDS IDENTIFICATION
Paraquat is a quartenary nitrogen herbicide widely used for broadleaf weed control. Paraquat is highly toxic to mammals by all routes of exposure. In
animals, can cause excitability and lung congestion, which in some cases leads to convulsions, incoordination, and death by respiratory failure. Eye contact
may cause injury. Contact with irritated skin, or a cut, or repeated contact with intact skin will cause severe irritation and may result in poisoning. Inhalation
exposure may cause irritation, nosebleed and may lead to poisoning.
4. FIRST AID MEASURES
If poisoning is suspected, do not wait for symptoms to develop. Call a doctor, clinic or hospital immediately. Explain that the
victim has been exposed to Paraquat a quartenary nitrogen herbicide, and describe his/her condition. Move victim
immediately from the area where Paraquat is present.
Call for medical attention urgently. Induce vomiting by inserting finger in throat. Administer fluids and induce further
Swallowed:
vomiting. Prompt treatment is essential and must be initiated before signs and symptoms of injury appear.
Flush eyes immediately with plenty of water during 15 minutes at least, lifting the upper and lower eyelids intermittently. Get
Eye Contract :
medical attention immediately.
Immediately get away from spray mist. Call for medical attention.
Inhaled:
In case of contact with product, wash immediately skin area with plenty of water and soap. Speed in removing material from
Skin:
skin is extreme important. Remove and isolate contaminated clothing and shoes. Call medical attention. Do not wear
contaminated clothing until it has been laundered.
Gastric lavage, saline cathartic and symptomatic treatment. Paraquat can be decomposed by alkaline. Paraquat is corrosive to
Notes to Physician:
the mouth, throat and stomach may be burned. This must not be allowed to override the efforts of first aides to make the
patient vomit. Paraquat is highly toxic to mammals by all routes of exposure. Paraquat is extremely toxic to mammalian lung,
were it can cause sores, bleeding, and disease. The lung tissue accumulates paraquat at much higher rates that do the other
organs and tissues in the body. However, it can also damage the heart, liver, kidneys, cornea of the eyes, adernal glands, skin,
fingernails, and digestive system. Inhalation of paraquat can cause nasal mucous irritation and bleeding of the
gastrointestinal tract.
5. FIRE FIGHTING MEASURES
Water, Dry chemical, CO2, Alcohol foam.
Extinguishing Media:
Wear protective equipment and breathing apparatus. Direct water onto intact containers to keep them
Special Fire Fighting Procedure
cool. Notify the fire-brigade immediately. Ask experts to clean out the area affected by the fire.
Toxic fumes of NOx.
Hazardous Decomposition Products:
6. ACCIDENTAL RELEASE MEASURES
Keep unnecessary people away. Isolate hazard area and deny entry. Do not smoke. Avoid contact and inhalation of the
Personal precautions:
product. Ventilate closed spaces before entering.
Avoid dispersion. Paraquat is slightly toxic to fish. In case of accidental spill, prevent the material from getting into lakes,
Precautions for the
rivers and other bodies of water Isolate discharged material and keep material out of water sources. Prevent product from
MATERIAL SAFETY DATA SHEET
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Bren
entering drains. Do not graze or feed clippings from treated areas to livestock.
environment
Wear suitable chemical protective clothing, boots, chemical resistant gloves, goggles,
Personal protection:
Wear protective equipment. Small spillages: Absorb on inert absorbing material such as clay. Shovel up into covered
Environmental cleanup
containers for disposal. Large spillages: Should be dammed-off and umped into containers; soak up reminder with
methods:
absorbent material and dispose of in accordance with local regulations.
7. HANDLING AND STORAGE
Do not smoke, drink or eat during handling. Wash hands using liquid detergent. Wear protective clothing to avoid contact
General precautions:
and/or inhalation with the product. Before removing gloves wash them with soap and water. Eliminate all sources of
ignition from areas where the material is handles or used. Good personal hygiene procedures must be practiced.
Good local exhaust ventilation. Full face protective mask.
Specific conditions:
Place in cool and ventilated areas . Store only in closed, properly-labeled containers, in area designed specifically for
Storage:
pesticides. Keep out of the reach of children and unauthorized persons. Keep away from excessive heat and open flame.
Properly keep away from food and drink. Incompatible with alkaline materials. Some alkyl sulfate of alkyl aryl sulfonate
wetting agents are incompatible.
8. EXPOSURE CONTROL/PERSONAL PROTECTION
Personal precautions:
Always read and follow the label instructions and warning exposure standards
Avoid inhalation of pesticides mist
Respiratory protection:
Safety goggles or faceshield is recommended.
Eye protection:
Chemical resistant gloves and appropriate protective clothing (arm and leg protection must be provided) necessary
Skin protection:
to prevent skin contact with the product.
Other protection Equipment: Showers and eye-washers in working area.
General precautions:
Avoid long term exposure Clothing must be laundered after each day's use.
Exposure limits:
OSHA-PEL: N.A. ACGIH-TLV: TWA 0.1 mg/m3.
9. PHYSICAL AND CHEMICAL PROPERTIES
Clear, Dark greenish blue liquid
Appearance and odor:
<0.1 mPa. (Paraquat dichloride)
Vapour pressure:
1.072 at 20癈
Density:
In water 700 g/l (20癈). Practically insoluble in most other organic solvents.(Paraquat dichloride).
Water solubility:
Stable in neutral and acidic media, but readily hydrolysed in alkaline media. Inactivated by inert clays, anionic surfactants,
Solubility:
and Photochemically decomposed by u.v. irradiation in aqueous solution.( Paraquat dichloride)
10. STABILITY AND REACTIVITY
Exposure to flames. may emit toxic fumes of Nox upon decomposition
Conditions to avoid:
Alkaline conditions, avoid strong oxidants
Materials to avoid:
Thermal decomposition products may be hazardous.
Hazardous decomposition products:
11. TOXICOLOGICAL INFORMATION
Contact with skin, eyes and inhalation. Ingestion is easy to prevent and not frequent, if it occurs, it may be dangerous. Paraquat is
Routes of exposures:
a quartenary nitrogen herbicide.
Acute Toxicity:
707 mg/kg males, 612 mg/kg females.
Oral ld50 (rats):
590 mg/kg male, 735 females
Dermal ld50 (rabbits):
No vapour toxicity. Respiratory exposure is negligible. If inhaled, may cause nose bleeding
Inhalation lc50 (rats)
Classified as a moderate to severe irritant to rabbit skin following a single 4 h. application of 0.5 ml. Severe irritant to the
Irritation:
MATERIAL SAFETY DATA SHEET
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Bren
rabbit eye.
Paraquat dichloride salt was not found to be a skin sensitizer when guinea pigs were challenged with topical application of a
Sensitization
30 and 10% W/V preparation of Paraquat dichloride technical in deionized water.
0-0.006 mg/kg b.w. as Paraquat dichloride.
ADI:
0-0.004 mg/kg b.w. as Paraquat cation.
12. ECOLOGICAL INFORMATION
Clays and organic mater rapidly and strongly adsorb Paraquat, resulting in complete deactivation. Such bound residues are not available to plants, earthworms,
and microorganisms. Because of its unavailability, and its resistance to microbial degradation and breakdown by sunlight, Paraquat is long lived. The bound
residues persist indefinitely and are transported in runoff with the sediment. the reported half-life for Paraquat in soil ranges from 16 months (aerobic
laboratory conditions) to 13 years (field study). Paraquat is not mobile in silt loams and silty clay loams, and is slightly mobile in sandy loams. Paraquat which
is not associated with soil particles can be decomposed to an non-toxic end product by soil bacteria. Paraquat residues disappear rapidly from water by binding
onto aquatic weeds and by strong adherence it the bottom mud. It has a half-life in laboratory stream water of 13.1 hours.
Toxicity To Fish And Other Aquatic Organisms:
Paraquat is slightly toxic to many species of aquatic organisms. At high levels, Paraquat inhibits the photosynthesis of some algae in stream waters. Depends
on the formulation and water used,
Rainbow trout 32 mg/l.
LC50 (96h) of Paraquat dichloride for fish:
Brown trout 2.5-13 mg/l
Paraquat dichloride is moderately toxic to birds.
Toxicity To Birds:
262-380 mg/kg (Paraquat dichloride).
LD50 to hens:
Acute oral:
4048 mg/kg
Mallard ducks:
LC50 (5d) of Paraquat
981 mg/kg
Bobwhite quail:
dichloride:
970 mg/kg.
Japanese quail:
Paraquat dichloride is non-toxic to bees.
Toxicity To Bees:
13. DISPOSAL CONSIDERATION
Must be disposed of by special means: suitable incineration and chemical treatment, in accordance with local regulations. Do not
discharge into drains or the environment.
14. TRANSPORT INFORMATION
Stable at room temperature and during transport. Transport in properly sealed and labeled containers.
Special precautions:
3016
UN number:
III
Packing group:
15. REGULATORY INFORMATION
LABELING
Xn, Xi
Symbols
R22: Harmful if swallowed.
Phrases R:
R21: Harmful in contact with skin.
R41: Risk of serious damage to eyes
R38: Irritating to skin
S1/2: Keep locked up and out of the reach of children.
Phrases S:
S28: After contact with skin, wash immediately with plenty of water and soap.
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical help.
16. OTHER INFORMATION
Paraquat is a quartenary nitrogen herbicide widely used for broadleaf weed control. It is a quick acting, non-selective compound, that destroys green plant
tissue on contact and by translocation within the plant.
The information in this MSDS is based on data available to us of the revision data given herein, and believed to be
correct
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