Material Safety Data Sheet
Dursban鈭? Micro-Lo Termiticide and Insecticide
Hazardous according to the criteria of the National Occupational Health & Safety Commission
(NOHSC). Risk Phrases: R20 鈥? Harmful by inhalation, R22 鈥? Harmful if swallowed, R36 鈥? Irritating
to eyes
Date of Issue: February 2001
Page: 1 of 5
Company: Dow AgroSciences Australia Ltd, ABN 24 003 771 659
Address: Level 5, 20 Rodborough Road, Frenchs Forest NSW 2086
Website: www.dowagrosciences.com.au
Customer Service Toll Free Number: 1800 700 096 (Mon-Fri, 8am鈥?5pm EST)
Emergency Telephone Number: 1800 033 882 (24 hours) (EMERGENCIES ONLY)
IDENTIFICATION
Product Name: Dursban Micro-Lo Termiticide and Insecticide
Shipping Name: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC
Product Code: IWD 4280
UN No: 3018
Hazchem Code: 2X
Dangerous Goods Class: 61 Toxic Substances
Sub Risk Class: None allocated
Packaging Group: III, most EPGs may now be substituted by the Initial Emergency
Response Guide, available from Standards Australia
Poison Schedule: S6
Uses: For pre-construction and post-construction control of subterranean
termites and other domestic insect pests as specified on the label.
PHYSICAL APPEARANCE & PROPERTIES
Appearance: Clear, straw coloured yellow liquid
Boiling point: No data
No specific data, expected to be low at 100oC
Volatile maeials:
66oC (PMCC)
Flashpoint:
110 g/mL @ 20oC
Specific gravity:
Solubility in water: Emulsifiable
Corrosiveness: Not corrosive
8 mm Hg at 20oC (solvent), 187 x 10-5 mm Hg at 25oC(chlorpyrifos)
Vapour Pressure:
INGREDIENTS
Chemical Entity CAS No. Proportion
Chlorpyrifos 002921-88-2 450 g/L
Aromatic solvent 070693-06-0 332 g/L
Other non hazardous ingredients < 350 g/L
鈭?
Trademark of Dow AgroSciences
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February 2001
HEALTH HAZARD DATA
HEALTH EFFECTS
The active ingredient in Dursban Micro-Lo is the organophosphate compound chlorpyrifos. Excessive exposure
may cause organophosphate type cholinesterase inhibition. Symptoms of excessive exposure to chlorpyrifos may
include pallor, nausea, vomiting, diarrhea, abdominal cramps, headache, dizziness, eye pain, blurred vision,
constriction or dilation of the eye pupils, tears, salivation, sweating, and confusion.
The information provided below is from studies conducted with a formulation similar to Dursban Micro-Lo.
Acute Swallowed: The oral LD50 [rat] is 230 to 310 mg/kg (moderately toxic).
Eye: Will cause temporary, moderate eye irritation.
Skin: The dermal LD50 (rabbit) is above 2000 mg/kg. Toxicity is low with short-
term skin contact and less than 3% of applied is absorbed
The inhalation LC50(rat) is 2000 to 2400 mg/m3 for 4 hours exposure
Inhaled:
(moderate to low toxicity). Excessive exposure to spray mist may be
harmful. Prolonged exposure to solvent vapour from the concentrate may
cause eye and respiratory tract irritation, headache, dizziness and narcotic
effects.
Chronic Possible chronic health effects from exposure to Dursban Micro-Lo are based on studies using
the active ingredient. Chlorpyrifos has been shown not to cause cancer and does not interfere
with reproduction and does not cause genetic damage or birth defects. Chlorpyrifos is rapidly
metabolised and excreted, and as a result, does not accumulate in the body. Repeated minor
exposure may have a cumulative poisoning effect. The ingredients are not listed as
carcinogenic in NOHSC鈥檚 document 鈥淓xposure Standards for Atmospheric Contaminants in the
Occupational Environment鈥? (May 1995).
PERSONAL PROTECTION AND SAFETY DIRECTIONS
General Pest Control:
Product is poisonous if absorbed by skin contact, inhaled or swallowed. Repeated minor exposure may have a
cumulative poisoning effect. Obtain an emergency supply of atropine tablets 0.6 mg. Will irritate the eyes and skin.
Avoid contact with eyes and skin. Do not inhale vapour or spray mist. When opening the container, preparing the
spray, or using the prepared spray, wear cotton overalls buttoned to the neck and wrist and a washable hat, elbow-
length PVC gloves, face shield or goggles. If product on skin, immediately wash area with soap and water. After
use and before eating, drinking or smoking, wash hands, arms and face thoroughly with soap and water. After each
day's use wash gloves, face shield or goggles and contaminated clothing.
For use as a Termiticide:
Product is poisonous if absorbed by skin contact, inhaled or swallowed. Repeated exposure may cause allergic
disorders. Repeated minor exposure may have a cumulative poisoning effect. Obtain an emergency supply of
atropine tablets 0.6 mg. Will irritate the eyes and skin. Avoid contact with eyes and skin. Do not inhale vapour or
spray mist. When opening the container, preparing the spray and using the prepared spray, wear chemical
resistant clothing buttoned to the neck and wrist and washable hat, elbow-length PVC gloves and goggles,
chemical resistant footwear and half facepiece respirator with combined dust and gas cartridge. If clothing
becomes contaminated with product or wet with spray, remove clothing immediately. If product on skin,
immediately wash area with soap and water. If product in eyes, wash it out immediately with water. After use and
before eating, drinking or smoking, wash hands, arms and face thoroughly with soap and water. After each day's
use wash gloves, goggles, respirator and if rubber wash with detergent and warm water, and contaminated
clothing.
FIRST AID
General: Consult The National Poisons Information Centre (Ph: 13 11 26) or a Doctor in every case of
suspected chemical poisoning. Never give fluids or induce vomiting if a patient is unconscious or
convulsing regardless of cause of injury. If breathing difficulties occur seek medical attention
immediately.
Atropine tablets 0.6mg should be available in the area where this product is used, or in a nearby unlocked medicine
cabinet.
Swallowed: If swallowed, give one atropine tablet every 5 minutes until dryness of the mouth occurs. Get to
a doctor or hospital quickly.
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Skin: If poisoned by skin absorption or through lungs, remove any contaminated clothing and wash
skin thoroughly and give one atropine tablet every 5 minutes until dryness of the mouth occurs.
If safety shower is available, use it promptly. Get to a doctor or hospital quickly.
Eyes: If in eyes, hold eyes open and flood with water for at least 15 minutes and see a doctor. Ensure
irrigation under eyelids by occasionally lifting them. Do not try to remove contact lenses unless
trained.
Inhalation: If affected, remove from contaminated area to fresh air. If breathing is difficult give oxygen and if
necessary artificial respiration. Get to a doctor or hospital quickly.
Advice to Doctor: Chlorpyrifos is a cholinesterase inhibitor. Atropine by injection or ATROVENT/ipratropium by
airway puff are the preferred antidotes. Oximes such as 2 PAM/ protopam, may be therapeutic
if used early but only if used in conjunction with atropine. Dursban Micro-Lo contains
petroleum-like solvents. If lavage is performed endotracheal or oesophagioscopic control is
advisable.
PRECAUTIONS FOR USE
EXPOSURE STANDARDS
A time weighted average (TWA) has been established for chlorpyrifos of 0.2mg/m3. The corresponding STEL level
is "not set". The exposure value at the TWA is the average airborne concentration of a particular substance when
calculated over a normal 8 hour working day for a 5 day working week. The ADI (Acceptable Daily Intake) for
chlorpyrifos is set at 0.003mg/kg/day. The corresponding NOEL (No-observable-effect-level) is set at
0.03mg/kg/day. Values taken from Australian ADI List, January, 2001.
ENGINEERING CONTROLS
In industrial situations, concentrated values below the TWA value should be maintained. Values may be reduced
by process modification, use of local exhaust ventilation, capturing substances at the source, or other methods. If
you believe airborne concentrations of mists, dusts or vapours are high, you are advised to modify the process or
environment to reduce the problem.
SAFE HANDLING INFORMATION
This product is classified as a C1 combustible product.
STORAGE & TRANSPORT
This product is classed as UN3018, ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC, Dangerous Goods
Class 6.1 Toxic Substances, Packaging Group III, HAZCHEM 2X.
Class 6 Toxic Substances shall not be loaded in the same vehicle or packed in the same freight container with
Classes 1 (Explosives), 3 (Flammable Liquids where the Flammable Liquid is nitromethane), 5.1 (Oxidising Agents
where the Toxic Substances are Fire Risk Substances), 5.2 (Organic Peroxides where the Toxic Substances are
Fire Risk Substances), 8 (Corrosive Substances where the Toxic Substances are cyanides and the Corrosives are
acids), Foodstuffs and foodstuff empties. They may however be loaded in the same vehicle or packed in the same
freight container with Classes, 2.1 (Flammable Gases), 2.2 (Non-Flammable, Non-Toxic Gases), 2.3 (Toxic
Gases), 3 (Flammable liquids, except where the flammable liquid is nitromethane), 4.1 (Flammable Solids), 4.2
(Spontaneously Combustible Substances), 4.3 (Dangerous When Wet Substances), 5.1 (Oxidising Agents except
where the Toxic Substances are Fire Risk Substances), 5.2 (Organic Peroxides except where the Toxic
Substances are Fire Risk Substances), 7 (Radioactive Substances), 8 (Corrosive Substances except where the
Toxic Substances are cyanides and the Corrosives are acids), 9 (Miscellaneous Dangerous Goods).
This product is an S6 Poison. Observe all relevant regulations regarding sale, transport and storage of this class of
product. Store in tightly closed original containers in a cool, well-ventilated area, out of direct sunlight. Do not store
with food, feedstuffs, fertilisers or seeds.
SPILLS
Wear protective equipment (see PERSONAL PROTECTION). Clear area of all unprotected personnel.
Prevent entry of chemical or used/damaged containers into drains, streams or waterways.
Small Spill: Apply absorbent material such as earth, sand, clay granules or cat litter to the spill. Sweep up
material when absorption is completed and contain in a refuse vessel for disposal (see
DISPOSAL). If spilled inside a building wash contaminated surfaces to deactivate the
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chlorpyrifos with a solution of bleach (sodium hypochlorite) prepared according to the bleach
label instructions.
Large Spill: Place leaking containers into salvage drums. Apply absorbent material such as earth, sand or
cat litter to the spill area. Form a barricade around spill and in front of drains or waterways in
spill vicinity, using earth or other available material. Sweep up material and contain in a refuse
vessel for disposal (see DISPOSAL). Contact Emergency Services on 000 immediately and
notify Dow AgroSciences Australia Limited on 1800 033 882 (24 hours) or 1800 700 096
(Mon-Fri, 8am to 5pm EST).
DISPOSAL
Contaminated material must be disposed of in accordance with all State and/or Local regulations.
Small quantities and containers: Triple or preferably pressure rinse containers before disposal. Add
rinsings to spray tank. Do not dispose of undiluted chemicals on site.
If recycling, replace cap and return clean containers to recycler or
designated collection point. If not recycling break, crush, or puncture
and bury empty containers in a local authority landfill. If no landfill is
available, bury the containers below 500 mm in a disposal pit
specifically marked and set up for this purpose clear of waterways,
desirable vegetation and tree roots. Empty containers and product
should not be burnt. Rinsate/rinse water should be disposed of in
accordance with appropriate State legislation and should preferably
be sprayed on to an application site or added as up to 10% of the
diluent the next time this product or another similar termiticide is used.
Do not put down sewers, gutters or storm water drains.
Large quantities: Contact Dow AgroSciences and seek advice.
FIRE & EXPLOSION HAZARD
66oC (PMCC)
Flashpoint:
Flammability limits: Upper Value: 6.0%, Lower Value: 0.9% (solvent)
Extinguishing Media: Carbon dioxide, dry chemical, foam, water fog. Water fog or fine
spray is the preferred medium for large fires.
Special Fire Fighting procedures: When fighting fires involving significant quantities of this product, wear
safety boots, non-flammable overalls, gloves, hat, goggles and self
contained breathing apparatus. All skin areas should be covered.
Ensure that no spillage enters drains or water courses.
Unusual Fire & Explosion Hazards: Combustible liquid. There is a moderate risk of an explosion from this
product if it is involved in a fire. Fire decomposition products from this
product may form toxic and corrosive mixtures in confined spaces.
Stability: This product is unlikely to spontaneously decompose.
Polymerisation: This product is unlikely to spontaneously polymerise.
Decomposition Products: Carbon dioxide, and if combustion is incomplete, carbon monoxide
and smoke. Nitrogen, and under some circumstances, oxides of
nitrogen. Oxides of sulfur. Oxides of phosphorus. Water.
Materials to avoid: Strong oxidising agents.
OTHER INFORMATION
ECOTOXICITY DATA
Chlorpyrifos is highly toxic to birds, fish, aquatic invertebrates and estuarine and marine organisms. Chlorpyrifos is
also highly toxic to honeybees and should not be used when bees are actively collecting pollen and nectar.
Chlorpyrifos is moderately toxic to pets and livestock and has low toxicity to earthworms
ENVIRONMENTAL FATE
Chlorpyrifos adsorbs strongly to soil particles and it is not readily soluble in water. It is therefore immobile in soils
and unlikely to leach or to contaminate groundwater. At termiticide use rates, the half-life approximates 380 days
depending on sunlight, soil type and climatic conditions. Adsorbed chlorpyrifos is subject to degradation by UV
light, chemical hydrolysis and by soil microbes.
In situations where the product accidentally enters water bodies, chlorpyrifos will bind to organic particles in the
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water and sediment. The concentration of chlorpyrifos that dissolves (approx. 1ppm) is hydrolysed rapidly in twelve
hours to six days depending on pH. Both adsorbed and dissolved chlorpyrifos are also lost from water through
volatilization and to a lesser extent photodegradation. Chlorpyrifos is degraded eventually into carbon dioxide and
simple organic molecules.
CONTACT POINT
FOR FURTHER PRODUCT INFORMATION CALL DOW AGROSCIENCES CUSTOMER SERVICE
REPRESENTATIVES TOLL FREE 1800 700 096 DURING BUSINESS HOURS.
THIS MSDS SUMMARISES OUR BEST KNOWLEDGE OF THE HEALTH AND SAFETY HAZARD INFORMATION OF THE PRODUCT AND HOW TO SAFELY
HANDLE AND USE THE PRODUCT IN THE WORKPLACE. EACH USER SHOULD READ THIS MSDS AND CONSIDER THE INFORMATION IN THE CONTEXT
OF HOW THE PRODUCT WILL BE HANDLED AND USED IN THE WORKPLACE INCLUDING IN CONJUNCTION WITH OTHER PRODUCTS. IF
CLARIFICATION OR FUTHER INFORMATION IS NEEDED TO ENSURE THAT AN APPROPRIATE RISK ASSESSMENT CAN BE MADE, THE USER SHOULD
CONTACT THIS COMPANY. THE RESPONSIBILITY FOR PRODUCTS SOLD IS SUBJECT TO OUR STANDARD TERMS AND CONDITIONS, A COPY OF
WHICH IS SENT TO OUR CUSTOMERS AND IS ALSO AVAILABLE ON REQUEST.
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