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Masta 900 sp msds

SECTION 1 - PRODUCT & COMPANY IDENTIFICATION

ARYSTA LifeScience South Africa (Pty) Ltd
Tel: 031 514 5600
Co. Reg. No.: 2009/019713/07
Fax: 031 514 5611
7 Sunbury Office Park,
Off Douglas Saunders Drive,
La Lucia Ridge, South Africa, 4019

e-mail: [email protected]
Web address: arystalifescience.co.za
Substance:
Product Name:
MASTA 900 SP
Product Use:
Creation Date:
Revision Date:

24 Hr Emergency Number:
In case of Poisoning:
Poison Information Centre
In case of Spillage:
HAZMAT:
SECTION 2 - COMPOSITION / INFORMATION ON INGREDIENTS
Common Name:
methomyl
Chemical Name: S-methyl N-(methylcarbamoyloxy) thioacetimidate (IUPAC)
CAS No.: 16752-77-5
Chemical family: Oxime carbamate
Chemical formula: C5H10N2O2S
Mol. Wt.: 162,2
Use: Systemic insecticide with contact and stomach action. Cholinesterase inhibitor.
Formulation: methomyl 900 g/kg. Water soluble powder
Hazardous ingredient: methomyl
Symbol: T+
Indication of danger:
Risk Phrases: R26/27/28, R36
SECTION 3 - HAZARD IDENTIFICATION
Toxicity class:
WHO Ib; EPA I
Methomyl is a carbamate compound, which inhibits cholinesterase. It is of very high toxicity. Contact with skin, inhalation of dust or spray, or
swal owing may be fatal. Toxic to fish and bees.
Likely routes of exposure:
Ingestion, dermal absorption, inhalation and eye contact.
Eye contact:
May cause moderate pain, redness or tears.
Skin contact:
Highly toxic. May cause mild irritation.
Ingestion:
Highly toxic by ingestion. See point 4 for symptoms.
Inhalation:
Highly toxic by inhalation. See point 4 for symptoms.

SECTION 4 - FIRST AID MEASURES AND PRECAUTIONS

Proper care should be taken during occupational use to avoid any contact or inhalation of spray particles or dust, and to prevent accidental
contamination of food products and water.
Carbamate: Cholinesterase inhibitor.
MATERIAL SAFETY DATA SHEET
Issued by: Arysta Lifescience South Africa Poison Information Centre: 082 446 8946; Tygerberg: (021) 931 6129; Poison Emergency Enquiry: (021) 689 5227
The first effects are usual y respiratory and may include nasal hyperemia and watery discharge, chest discomfort, dyspnea, and wheezing
due to increased bronchial secretions and bronchoconstriction. Other systemic effects may begin within a few minutes or several hours of
exposure. Symptoms may include nausea, vomiting, diarrhoea, abdominal cramps, headache, vertigo, tightness of the chest, anxiety, ocular
pain, ciliary muscle spasm, blurring or dimness of vision, miosis, or in some cases mydriasis, lacrimation, salivation, sweating, and
confusion.
In severe cases, there may also be involuntary defecation and urination, bradycardia, hypotension, pulmonary oedema, convulsions, coma,
and death from respiratory failure or cardiac arrest.
Does not accumulate in mammalian tissue and the cholinesterase inhibition reverses rather rapidly. In non-fatal cases, the il ness general y
lasts less than 24 hours.
Inhalation:
Remove from exposure area to fresh air immediately. If breathing has stopped, give mechanical artificial respiration (not direct mouth-to-
mouth). Maintain airway and blood pressure and administer oxygen if available. Keep affected person warm and at rest. Treat
symptomatical y and supportively. Qualified personnel should perform administration of oxygen. Get medical attention immediately.
Skin contact:
Remove contaminated clothing immediately. Wash contaminated areas with soap and water fol owed by alcohol. Emergency personnel
should wear gloves and avoid contamination. Treat respiratory difficulty with mechanical artificial respiration. Get medical attention
immediately.
Eye contact:
Flush eyes with lukewarm, gently flowing water for at least 20 minutes or until the product is removed, while holding the eyelid(s) open. Take
care not to rinse contaminated water into the unaffected eye or onto the face. If symptoms of poisoning occur, treat respiratory difficulty with
mechanical artificial respiration and oxygen. Observe patient for at least 24 to 36 hours. Get medical attention immediately. Qualified
medical personnel should administer oxygen.
Ingestion:
If swal owed, rinse mouth thoroughly with water and immediately get medical attention. If person is alert and respiration is not depressed,
give syrup of Ipecac fol owed by water or activated charcoal if instructed. If vomiting occurs, keep head below hips to prevent aspiration.
Establish and maintain airway. Treat respiratory difficulty with artificial respiration and oxygen. Apply mouth-to-nose respiration. Qualified
medical personnel should administer oxygen. Do not give anything by mouth to an unconsciousness person. Take the person to a physician
immediately.
Advice to physician:
If consciousness level declines or vomiting has not occurred in 15 minutes empty stomach by gastric lavage with the aid of cuffed
endotracheal tube using isotonic saline or 5 % sodium bicarbonate fol owed with activated charcoal. Establish and maintain airway. Treat
respiratory difficulty with artificial respiration and oxygen.
Do not give morphine, aminophylline, phenothiazines, reserpine, furosemide, or ethacrynic acid.
Pralidoxime (2-PAM, Protopam) and other oximes are contra-indicated and they should not be used.
Antidote:
Establish clear airway and tissue oxygenation by aspiration of secretions, and if necessary, by assisted pulmonary ventilation with oxygen.
Administer atropine sulphate intravenously or intramuscularly if intra venous injection is not possible. In moderately severe poisoning
administer atropine sulphate, 0,4 to 2,0 mg repeated every 15 minutes, until atropinization is achieved (tachycardia, flushing, dry mouth,
mydriasis). Maintain atropinization by repeated doses for 2 to 12 hours, or longer, depending on the severity of poisoning.
Severely poisoned individuals may exhibit remarkable tolerance to atropine. Two or more times the dosages suggested above may be
needed. Observe treated patients closely at least 24 hours to ensure that symptoms (possibly pulmonary oedema) do not recur as
atropinization wears off. In very severe poisonings, metabolic disposition of toxicant may require several hours or days during which
atropinisation must be maintained.
Markedly lower levels of urinary metabolites indicate that atropine dosage can be tapered off. As dosage is reduced, check the lung bases
frequently for rales. If rales are heard or other symptoms return, re-establish atropinisation promptly.

SECTION 5 - FIRE-FIGHTING MEASURES
Fire and explosion hazard:
Slight fire hazard when exposed to heat or flame. Dust-air mixtures may ignite or explode.
Hazardous decomposition products:
Decomposes in fire to emit very toxic fumes of NO2 and SO2.
Extinguishing agents:
Extinguish fires with carbon dioxide, dry powder, or alcohol-resistant foam. Water spray can be used for cooling of unaffected stock. Contain
water used for fire fighting for later disposal. Do not get water inside the containers. Runoff to sewers could create fire or explosion hazard.
Fire fighting:
Keep upwind. Remove container from fire area if possible. Fight fire from maximum distance or use unmanned hose holders or monitor
nozzles. Contain fire control agents for later disposal. Use a recommended extinguishing agent for the type of surrounding fire. Avoid
inhaling hazardous vapours. Keep upwind. Consider evacuation of downwind area if material is leaking.
Personal protective equipment:
Fire may produce irritating or poisonous vapours (sulphoxides), mists or other products of combustion. Fire fighters and others that may be
exposed should wear ful protective clothing and self-contained breathing apparatus.
MATERIAL SAFETY DATA SHEET
Issued by: Arysta Lifescience South Africa Poison Information Centre: 082 446 8946; Tygerberg: (021) 931 6129; Poison Emergency Enquiry: (021) 689 5227
SECTION 6 - ACCIDENTAL RELEASE MEASURES (SPILLAGE)
Personal precautions:
Avoid contact with skin and eyes. Do not breathe in dust or fumes. For personal protection see Section 8.
Environmental precautions:
Do not al ow entering drains or watercourses. Spil age or uncontrolled discharges into water courses (or public waters) to be reported
immediately to the Departments of Water or Environmental Affairs.
Occupational spill:
Do not flush with water. For dry spil s, preferably vacuum with an industrial vacuum cleaner with a 0,3 m filter, or sweep up with damp earth
or sand or other suitable absorbent, taking care not to raise a dust cloud. In situations where product comes in contact with water, contain
contaminated water for later disposal. Do not flush spil ed material into drains. Keep spectators away.
SECTION 7 - HANDLING AND STORAGE REQUIREMENTS
Handling:
Toxic if swal owed. Avoid contact with eyes and skin, and inhalation of dust and vapour. Use with adequate ventilation. Wash hands before
eating, drinking, chewing gum, smoking, or using the toilet. Operators should change and wash clothing daily. Remove clothing immediately
if the insecticide gets inside. Then wash skin thoroughly using a non-abrasive soap and put on clean clothing. Do not apply directly to areas
where surface water is present, or to intertidal areas below the mean high water mark. Water used to clean equipment must be disposed of
correctly to avoid contamination.
Storage:
Stable for up to 2 years when stored under dark, dry warehouse conditions. The product must be kept under lock and key. Keep out of
reach of unauthorised persons, children and animals. Store in its original label ed container in isolated, dry, cool and wel -ventilated area. Not
to be stored next to foodstuffs and water supplies. Local regulations should be complied with.
SECTION 8 - EXPOSURE CONTROL/PERSONAL PROTECTION

It is essential to provide adequate ventilation. The measures appropriate for a particular work site depend on how this material is used and
on the extent of exposure. Ensure that control systems are properly designed and maintained. Comply with occupational safety,
environmental, fire, and other applicable regulations.
Personal protective equipment:
If engineering controls and work practices are not effective in control ing exposure to this material, then wear suitable personal protective
equipment including approved respiratory protection.
Respirator:
An approved respirator suitable for protection from dusts and mists of pesticides is required. Limitations of respirator use specified by the
approving agency and the manufacturer must be observed.
Clothing:
Employee must wear appropriate protective (impervious) clothing and equipment to prevent skin contact with the substance.
Gloves:
Employee must wear appropriate synthetic protective gloves to prevent contact with this substance.
Eye protection:
The use of ful -face protection is recommended.
Emergency eyewash: Where there is any possibility that an employee’s eyes may be exposed to this substance, the employer should
provide an eye wash fountain or appropriate alternative within the immediate work area for emergency use.
SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES
Appearance:

Specific gravity: 1,2946 at 25 °C
Storage stability: Stable at normal temperatures and storage conditions. Incompatible with strong bases.
SECTION 10 - STABILITY AND REACTIVITY
Stability:
Stable for up to 2 years in the dry form and in aqueous solutions pH 7.0 or less, but rapidly decomposes in alkaline solutions and in moist
soils.
Corrosiveness:
Corrosive to iron.
MATERIAL SAFETY DATA SHEET
Issued by: Arysta Lifescience South Africa Poison Information Centre: 082 446 8946; Tygerberg: (021) 931 6129; Poison Emergency Enquiry: (021) 689 5227
Incompatibility:
The product is compatible with most other pesticides when used at normal rates. Do not physical y mix concentrate directly with other
herbicides or pesticide concentrates; always dilute first. A compatibility test is required before using with other products. Incompatible with
strong bases and oxidising agents.
Hazardous decomposition products:
Decomposes in fire to emit very toxic fumes of NO2 and SO2.
SECTION 11 - TOXICOLOGICAL INFORMATION
Acute oral LD50:

Acute dermal LD50:
Acute inhalation LC50:
Skin irritation: The product was found to be non-irritating to guinea pig skin.
Eye irritation: Caused pupil ary constriction and other effects associated with anti-cholinesterase activity.
Teratogenic effects:
Animal studies did not detect any teratogenic effects. No human information available.
Mutagenic effects:
In a number of assays, methomyl was not mutagenic. No evidence that methomyl is a mutagenic or genotoxic.
Carcinogenic effects:
Animal studies did not detect carcinogenic activity. No human information available. SECTION 12 - ECOLOGICAL INFORMATION

The product degrades rapidly in the soil, degradation-taking place primarily through microbial activity, with CO2 as the principal end product.
Mobility:
The product dissolves readily in water and is mobile in soil.
Accumulation:
Animals:
In rats, methomyl was rapidaly converted to methomyl methylol, oxime, sulfoxide and sulfoxide oxime. These unstable
intermedieates were converted to acetonitrile and CO2, which were eliminated primarily via respiration and in the urine.
Plants: After leaf application of methomyl, DT50 was approximately 3 to 5 days. Methomyl was rapidily degradated to CO2 and acetonitrile,
with incerporation into natural plant components.
Birds:
LD50:
mal ard ducks: 15,9 mg/kg Pheasants: 15,4 mg/kg Fish: Extremely toxic to fish.
LC50 (96 hr):
rainbow trout: 3,4 mg/ℓ Bluegil sunfish: 0,9 mg/ℓ Bees: Toxic to bees.
Contact LD50: 0,1 µg/bee
Methomyl is not hazardous once spray has dried.
Daphnia:
LC50 (48 hours): 28,7 µg/ℓ
SECTION 13 - DISPOSAL CONSIDERATION
Pesticide and container disposal:
Open dumping or burning of this pesticide is prohibited. Never pour untreated waste or surplus products into public sewers or where there is
any danger of run-off or seepage into water systems. Do not contaminate rivers, dams or any other water sources with the product or used
containers.
Emptied containers retain vapour and product residues. Observe al label ed safeguards until container is destroyed.
TRIPLE RINSE empty containers in the fol owing manner. Invert the empty container over the spray or mixing tank and allow to drain for at
least 30 seconds after the flow has slowed down to a drip. Thereafter rinse the container three times with a volume of water equal to a
minimum of 10 % of that of the container. Add the rinsings to the contents of the spray tank before destroying the container in the prescribed
manner.
Do not re-use the empty container for any other purpose. Destroy it by perforation and flattening and bury in an approved dump site.
Prevent contamination of food, feedstuffs, drinking water and eating utensils.
MATERIAL SAFETY DATA SHEET
Issued by: Arysta Lifescience South Africa Poison Information Centre: 082 446 8946; Tygerberg: (021) 931 6129; Poison Emergency Enquiry: (021) 689 5227
SECTION 14 - TRANSPORT INFORMATION
UN NUMBER:

ADR/IRD:
IMDG/IMO:
ICAO/IATA:
PACKING GROUP: II
ROAD/RAIL:
carbamate pesticide, solid, toxic, n.o.s. (methomyl).
AIR/IATA:
carbamate pesticide, solid, toxic, n.o.s. (methomyl).
SEA:
carbamate pesticide, solid, toxic, n.o.s. (methomyl).
Considered a marine pollutant.

SECTION 15 - REGULATORY INFORMATION

Symbol:
Indication of danger:

Risk phrase(s):
R 26/27/28

Very toxic by inhalation, in contact with skin and if swal owed.
Safety phrases:
S 1/2

Keep locked up and out of reach children. S 36/37/39
Wear suitable protective clothing, gloves and eye/face protection. S 45 In case of accident or if you feel unwel , seek medical advice immediately (show the label where possible).
SECTION 16 - OTHER INFORMATION
Packaging:
Packed in 1 kg water-soluble sachets and then 10 x 1 kg water-soluble sachets are packed within 3-ply paper
box and label ed according to South African regulations and guidelines.
Disclaimer:
The information on this sheet is not a specification; it does not guarantee specific properties. The information is
intended to provide general guidance as to health and safety based upon our knowledge of the handling, storage
use of the product. It is not applicable to unusual or non-standard uses of the product nor where instructions or
recommendations are not fol owed.
Al information is given in good faith bit without guarantee in respect of accuracy, and no responsibility is
accepted for errors and omissions or the consequence thereof.
MATERIAL SAFETY DATA SHEET
Issued by: Arysta Lifescience South Africa Poison Information Centre: 082 446 8946; Tygerberg: (021) 931 6129; Poison Emergency Enquiry: (021) 689 5227

Source: http://www.arystalifescience.co.za/Files/MSDS/MASTA%20900%20SP%20MSDS.pdf

Palmer public schools

PALMER PUBLIC SCHOOLS PALMER HIGH SCHOOL----HEALTH SERVICES Student Health Information Sheet (School Year ___________) Name _______________________ M/F GR____ DOB__________ Birthplace ____________________ Street Address___________________________________ Home phone _________________________ Mailing Address__________________________________ Cell phone ____________________

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