Material Safety Data Sheet
∗ 500 EC Insecticide
Hazardous according to the criteria of the National Occupational Health & Safety Commission
(NOHSC). Risk Phrases: R20 – Harmful by inhalation, R22 – Harmful if swallowed, R36 – Irritating
to eyes, R65 – Harmful: May cause lung damage if swallowed.
Date of Issue:
1 of 4
Dow AgroSciences Australia Ltd, ABN 24 003 771 659
Level 5, 20 Rodborough Road, Frenchs Forest NSW 2086
Customer Service Toll Free Number:
1800 700 096 (Mon-Fri, 8am–5pm EST)
Emergency Telephone Number:
1800 033 882 (24 hours) (EMERGENCIES ONLY)
ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC
Dangerous Goods Class:
Sub Risk Class:
III Most EPGs may now be substituted by the Initial EmergencyResponse Guide, available from Standards Australia
For the control of certain insect pests in fruit, vegetables, fieldcrops, pasture and other situations as specified on the label
PHYSICAL APPEARANCE & PROPERTIES
No specific data, expected to be low at 100oC
Solubility in water:
26 mm Hg at 38oC (solvent), 187 x 10-5 mm Hg at 25oC(chlorpyrifos)
HEALTH HAZARD DATA
The active ingredient in Lorsban 500 EC 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 Lorsban 500EC.Acute
The oral LD50 (rat) is 230 to 310 mg/kg (moderately toxic).
Will cause temporary, moderate eye irritation.
The dermal LD50 (rabbit) is above 2000 mg/kg. Toxicity is low and less than3% of applied is absorbed. Prolonged contact may result in absorption ofharmful amounts.
The inhalation LC50(rat) is 2000 to 2400 mg/m3 for 4 hours exposure(moderate to low toxicity). Excessive exposure to spray mist may beharmful. Prolonged exposure to solvent vapour from the concentrate maycause eye and respiratory tract irritation, headache, dizziness and narcoticeffects.
Possible chronic health effects from exposure to Lorsban 500 EC are based on studies usingthe active ingredient. Chlorpyrifos has been shown not to cause cancer and does not interferewith reproduction and does not cause genetic damage or birth defects. Chlorpyrifos is rapidlymetabolised and excreted, and as a result, does not accumulate in the body. Repeated minorexposure may have a cumulative poisoning effect. The ingredients are not listed ascarcinogenic in NOHSC’s document “Exposure Standards for Atmospheric Contaminants in theOccupational Environment” (May 1995).
PERSONAL PROTECTION AND SAFETY DIRECTIONS
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 eyes and skin.
Avoid contact with eyes and skin. Avoid inhaling spray mist. When opening the container, preparing the spray or
bait, or using the prepared spray or bait, 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.
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
Atropine tablets 0.6mg should be available in the area where this product is used, or in a nearby unlocked medicine
If swallowed, give one atropine tablet every 5 minutes until dryness of the mouth occurs. Get toa doctor or hospital quickly.
If poisoned by skin absorption or through lungs, remove any contaminated clothing and washskin 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.
If in eyes, hold eyes open and flood with water for at least 15 minutes and see a doctor. Ensureirrigation under eyelids by occasionally lifting them. Do not try to remove contact lenses unlesstrained.
If affected, remove from contaminated area to fresh air. If breathing is difficult give oxygen and ifnecessary 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 therapeuticif used early but only if used in conjunction with atropine. Lorsban 500 EC contains petroleum-like solvents. If lavage is performed endotracheal or oesophagioscopic control is advisable.
PRECAUTIONS FOR USE
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.
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 withClasses 1 (Explosives), 3 (Flammable Liquids where the Flammable Liquid is nitromethane), 5.1 (Oxidising Agentswhere the Toxic Substances are Fire Risk Substances), 5.2 (Organic Peroxides where the Toxic Substances areFire Risk Substances), 8 (Corrosive Substances where the Toxic Substances are cyanides and the Corrosives areacids), Foodstuffs and foodstuff empties. They may however be loaded in the same vehicle or packed in the samefreight container with Classes, 2.1 (Flammable Gases), 2.2 (Non-Flammable, Non-Toxic Gases), 2.3 (ToxicGases), 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 exceptwhere the Toxic Substances are Fire Risk Substances), 5.2 (Organic Peroxides except where the ToxicSubstances are Fire Risk Substances), 7 (Radioactive Substances), 8 (Corrosive Substances except where theToxic 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 ofproduct. Store in tightly closed original containers in a cool, well-ventilated area, out of direct sunlight. Do not storewith food, feedstuffs, fertilisers or seeds.
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.
Apply absorbent material such as earth, sand, clay granules or cat litter to the spill. Sweep upmaterial when absorption is completed and contain in a refuse vessel for disposal (seeDISPOSAL). If spilled inside a building wash contaminated surfaces to deactivate thechlorpyrifos with a solution of bleach (sodium hypochlorite) prepared according to the bleachlabel instructions.
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).
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. Addrinsings to spray tank. Do not dispose of undiluted chemicals on site.
If recycling container, 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. Ifno landfill is available, bury the containers below 500 mm in a disposalpit specifically marked and set up for this purpose clear of waterways,desirable vegetation and tree roots. Empty containers and productshould not be burnt.
Contact Dow AgroSciences and seek advice.
FIRE & EXPLOSION HAZARD
Upper Value: 7.0%, Lower Value: 0.6% (solvent)
Carbon dioxide, dry chemical, foam, water fog. Water fog or finespray is the preferred medium for large fires.
Special Fire Fighting procedures:
When fighting fires involving significant quantities of this product, wearsafety boots, non-flammable overalls, gloves, hat, goggles and selfcontained 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 thisproduct if it is involved in a fire. Fire decomposition products from thisproduct may form toxic and corrosive mixtures in confined spaces
This product is unlikely to spontaneously decompose.
This product is unlikely to spontaneously polymerise.
Carbon dioxide, and if combustion is incomplete, carbon monoxideand smoke. Nitrogen, and under some circumstances, oxides ofnitrogen. Oxides of sulfur. Oxides of phosphorus. Water.
Materials to avoid:
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
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. The soil half-life of chlorpyrifos for concentrations
representing agricultural use practices approximates 70 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 thewater and sediment. The concentration of chlorpyrifos that dissolves (approx. 1ppm) is hydrolysed rapidly in twelvehours to six days depending on pH. Both adsorbed and dissolved chlorpyrifos are also lost from water throughvolatilization and to a lesser extent photodegradation. Chlorpyrifos is degraded eventually into carbon dioxide andsimple organic molecules.
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 SAFELYHANDLE AND USE THE PRODUCT IN THE WORKPLACE. EACH USER SHOULD READ THIS MSDS AND CONSIDER THE INFORMATION IN THE CONTEXTOF HOW THE PRODUCT WILL BE HANDLED AND USED IN THE WORKPLACE INCLUDING IN CONJUNCTION WITH OTHER PRODUCTS. IFCLARIFICATION OR FUTHER INFORMATION IS NEEDED TO ENSURE THAT AN APPROPRIATE RISK ASSESSMENT CAN BE MADE, THE USER SHOULDCONTACT THIS COMPANY. THE RESPONSIBILITY FOR PRODUCTS SOLD IS SUBJECT TO OUR STANDARD TERMS AND CONDITIONS, A COPY OFWHICH IS SENT TO OUR CUSTOMERS AND IS ALSO AVAILABLE ON REQUEST.
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