Safety data sheet
According to EC Directive 91/155/EEC
MERCK
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1. Identification of the substance/preparation and of the company/undertaking
Identification of the product
Catalogue No.: 115996
Product name: Methyl acetate anhydrous Selectipur®

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
Acetic acid methyl ester

CAS-No.: 79-20-9 EC-Index-No.: 607-021-00-X
Molar mass: 74.08 EINECS-No.: 201-185-2
Molecular formula: C3H6O2

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3. Hazards identification
Highly flammable.

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4. First aid measures
After inhalation: fresh air. If necessary, apply mouth-to-mouth resuscitation or mechanical ventilation.
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: caution if victim vomits. Risk of aspiration! Keep airways free. Summon doctor. Subsequently administer: Paraffin oil (3 ml/kg).

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

Special risks:
Combustible. Vapours heavier than air. Formation of explosible mixtures possible with air. Keep away from sources of ignition.

Other information:
Take measures to prevent electrostatic charging. Beware of backfiring.

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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.

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

Environmental-protection measures:
Do not allow to enter sewerage system.

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7. Handling and storage
Handling:
Take measures to prevent electrostatic charging.

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

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8. Exposure controls/personal protection
Specific control parameter
MAK Germany (max. workplace conc.)
Methyl acetate 200 ml/m3 or 610 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: Immediately change contaminated clothing. Apply skin- protective barrier cream. Wash hands and face after working with substance.

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9. Physical and chemical properties
Form: liquid
Colour: colourless
Odour: aromatic
pH value ( ) 7
Viscosity dynamic (20 °C) 0.381 mPa*s
Melting temperature -98 °C
Boiling temperature 55 - 57 °C
Ignition temperature 475 °C
Flash point -10 °C
Explosion limits lower 3.1 Vol%
upper 16 Vol%
Vapour pressure (20 °C) 220 hPa
Density (20 °C) 0.93 g/cm3
Solubility in water (20 °C) 250 g/l
ethanol (20 °C) soluble
ether (20 °C) soluble
log P(oct): 0.18

Further information
Distillable in an undecomposed state at normal pressure.

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10. Stability and reactivity
Conditions to be avoided
Heating.

Substances to be avoided
oxidizing agent

Hazardous decomposition products
no information available

Further information
highly inflammable ;
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): 5000 mg/kg

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

Further toxicological information
When vapours/aerosols are generated: mucosal irritations , narcosis
After skin contact: Irritations. Degreasing effect on the skin, possibly followed by secondary inflammation. Danger of skin absorption.
After eye contact: Irritations.
After absorption of toxic quantities: headache , dizziness , drowziness , dyspnoea , unconsciousness , narcosis

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

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12. Ecological information
Biologic degradation:
Easily eliminable.

Behavior in environmental compartments:
Distribution: log P(oct):: 0.18 ;

Ecotoxic effects:
Toxic for aquatic organisms
Risk of formation of explosive vapours above water surface.
Fish toxicity: fish LC50: 225 mg/l ;
aquatic organisms LC50: > 100 mg/l /96 h ;

Further ecologic data:
Evaluation number (FRG) (bacteria): 2.7 ; Evaluation number (FRG) (fish): 3.6 ; Evaluation number (FRG) (mammal): 1 ;
When introduced properly, no impairments in the function of adapted biological waste-water-treatment plants are to be expected.

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: 1231 METHYLACETAT

River transport ADN/ADNR
not examined

Sea transport IMDG
IMDG class: 3.2 UN-No.: 1231 Packaging group: II
Ems: 3-06 MFAG: 330
Correct technical name: METHYL ACETATE

Air transport ICAO-TI and IATA-DGR
ICAO/IATA class: 3 UN/ID-No.: 1231 Packaging group: II
Correct technical name: METHYL ACETATE

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.
R-phrases: R 11 Highly flammable.
S-phrases: S 16-23.2-29-33 Keep away from sources of ignition - No smoking. Do not breathe vapour. Do not empty into drains. Take precautionary measures against static discharges.
EC-No.: 201-185-2 EC label

German regulations
Water pollution class 1 (slightly polluting substance)

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16. Other information
Reason for alteration
See chapter 8
Change in the chapter on toxicology.
General update.

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