Safety data sheet
According to EC Directive 91/155/EEC
MERCK Schuchardt
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1. Identification of the substance/preparation and of the company/undertaking
Identification of the product
Catalogue No.: 800590
Product name: Methyl methacrylate (stabilised with hydroquinone monomethyl ether) for synthesi s

Manufacturer/supplier identification
Company: Merck Ltd.
9th Floor, Monterey Tower, 2170 New Petchburi Road, Bangkapi, Huaykwang, Bangkok 10320
Tel: (662) 308 - 0218

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2. Composition/information on ingredients
Synonyms
Methacrylic acid methyl ester

CAS-No.: 80-62-6 EC-Index-No.: 607-035-00-6
Molar mass: 100.12 EINECS-No.: 201-297-1
Molecular formula: C5H8O2

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3. Hazards identification
Highly flammable. Irritating to eyes, respiratory system and skin. May cause sensitization by skin contact.

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4. First aid measures
After inhalation: fresh air.
After skin contact: wash off with plenty of water. Remove contaminated clothing.
After eye contact: rinse out with plenty of water with the eyelid held wide open. Summon eye specialist.
After swallowing: make victim drink plenty of water, induce vomiting, summon doctor. Keep airways free.

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5. Fire-fighting measures
Suitable extinguishing media:
CO2, foam, powder.

Special risks:
Combustible. Vapours heavier than air. Formation of explosible mixtures possible with air. Development of hazardous combustion gases or vapours possible in the event of fire.

Special protective equipment for fire fighting:
Do not stay in dangerous zone without suitable chemical protection clothing and self-contained breathing apparatus.

Other information:
Take measures to prevent electrostatic charging.

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6. Accidental release measures
Person-related precautionary measures:
Do not inhale vapours/aerosols. Ensure supply of fresh air in enclosed rooms.

Environmental-protection measures:
Do not allow to enter sewerage system; risk of explosion!

Procedures for cleaning / absorption:
Take up with liquid-absorbent material (e.g. Chemizorb® ). Forward for disposal. Clean up affected area.

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7. Handling and storage
Handling:
Keep away from sources of ignition. Take measures to prevent electrostatic charging.

Storage:
At +15°C to +25°C. Protected from light. Tightly closed in a well-ventilated place, away from sources of ignition and heat.

Notes for common storage:
Away from highly flammable substances.

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8. Exposure controls/personal protection
Specific control parameter
MAK Germany (max. workplace conc.)
Methacrylic acid, methyl ester 50 ml/m3 or 210 mg/m3

Personal protective equipment:
Respiratory protection: required when vapours/aerosols are generated.
Eye protection: required
Hand protection: required

Protective clothing should be selected specifically for the working place, depending on concentration and quantity of the hazardous substances handled. The resistance of the protective clothing to chemicals should be ascertained with the respective supplier.
Industrial hygiene: Change contaminated clothing. Application of skin- protective barrier cream recommended. Wash hands after working with substance.

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9. Physical and chemical properties
Form: liquid
Colour: colourless
Odour: characteristic
pH value not available
Viscosity dynamic (20 °C) 0.56 mPa*s
Melting temperature -48 °C
Boiling temperature 100 °C
Ignition temperature 430 °C
Flash point 10 °C
Explosion limits lower 2.1 Vol%
upper 12.5 Vol%
Vapour pressure (20 °C) 47 mbar
Density (20 °C) 0.94 g/cm3
Solubility in water (20 °C) 16 g/l
ethanol (20 °C) soluble
methanol (20 °C) soluble

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10. Stability and reactivity
Conditions to be avoided
Heating.

Substances to be avoided
amines , strong oxidizing agents , polymerization initiators ( i.a. ammonia , peroxi compounds )

Hazardous decomposition products
no information available

Stabilizer
hydroquinone monomethyl ether (4-methoxyphenol)

Further information
highly inflammable ; light-sensitive ;
unsuitable working materials: various plastics , rubber ;
Explosible with air in a vaporous/gaseous state.

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11. Toxicological information
Acute toxicity
LD50 (oral, rat): 7872 mg/kg
LC50 (inhalation, rat): 78 mg/l /4 h

Subacute to chronic toxicity
An embryotoxic effect need not be feared when the threshold limit value is observed.

Further toxicological information
After inhalation: Irritations of the mucous membranes, coughing, and dyspnoea.
After skin contact: Irritations.
After eye contact: Irritations.
After swallowing: irritations of mucous membranes in the mouth, pharynx, oesophagus and gastrointestinal tract.
After absorption of toxic quantities: Toxic effect on: liver , kidneys , CNS disorders
Sensitization with allergic manifestationsin predisposed persons.

Further data
The product should be handled with the care usual when dealing with chemicals.

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12. Ecological information
Ecotoxic effects:
Biological effects: Toxic for aquatic organisms
aquatic organisms : LC50: 100 mg/l /96 h ;
Fish toxicity: L.idus LC50: 350 mg/l ;
Daphnia toxicity: Daphnia magna LC50: 1760 mg/l ; Daphnia magna EC50: 720 mg/l

Further ecologic data:
Degradability:
BOD5: 0.14 g/g

Do not allow to enter waters, waste water, or soil!

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13. Disposal considerations
Product:
There are no uniform EC Regulations for the disposal of chemicals or residues. Chemical residues generally count as special waste. The disposal of the latter is regulated in the EC member countries through corresponding laws and regulations. We recommend that you contact either the authorities in charge or approved waste disposal companies which will advise you on how to dispose of special waste.

Packaging:
Disposal in compliance with official regulations. Handle contaminated packaging in the same way as the substance itself. If not officially specified differently, non-contaminated packaging may be treated like household waste or recycled.

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14. Transport information
Transport over land ADR/RID and GGVS/GGVE (Germany)
GGVS/GGVE class: 3 Number and letter: 3b
ADR/RID class: 3 Number and letter: 3b
Name of material: 1247 METHYLMETHACRYLAT, MONOMER, STABILISIERT

River transport ADN/ADNR
not examined

Sea transport IMDG
IMDG class: 3.2 UN-No.: 1247 Packaging group: II
Ems: 3-07 MFAG: 330
Correct technical name: METHYL METHACRYLATE,MONOMER,INHIBITED

Air transport ICAO-TI and IATA-DGR
ICAO/IATA class: 3 UN/ID-No.: 1247 Packaging group: II
Correct technical name: METHYL METHACRYLATE MONOMER,INHIBITED

The transport regulations are cited according to international regulations and in the form applicable in Germany (GGVS/GGVE). Possible national deviations in other countries are not considered.

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15. Regulatory information
Labelling according to EC Directives
Symbol: F Highly flammable immediately and show this container or label.
Xi Irritant immediately and show this container or label.
R-phrases: R 11-36/37/38-43 Highly flammable. Irritating to eyes, respiratory system and skin. May cause sensitization by skin contact.
S-phrases: S 9-16-29-33 Keep container in a well-ventilated place. Keep away from sources of ignition - No smoking. Do not empty into drains. Take precautionary measures against static discharges.
EC-No.: 201-297-1 EC label

German regulations
Water pollution class 1 (slightly polluting substance)

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16. Other information
Reason for alteration
General update.

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