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.: 807679
Product name: Styrene (stabilised with 20 ppm 4-tert-butyl-pyrocatechol) for synthesis

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
Phenylethylene ; Vinylbenzene

CAS-No.: 100-42-5 EC-Index-No.: 601-026-00-0
Molar mass: 104.15 EINECS-No.: 202-851-5
Molecular formula: C8H8

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3. Hazards identification
Flammable. Harmful by inhalation. Irritating to eyes and skin.

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4. First aid measures

After skin contact: wash off with plenty of water. Remove contaminated clothing.
After eye contact: rinse out with plenty of water for at least 10 minutes with the eyelid held wide open. Summon eye specialist. After inhalation: fresh air.
After swallowing: make the victim drink plenty of water, induce vomiting. Summon doctor.

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

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

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6. Accidental release measures
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:
No further requirements.

Storage:
tightly closed , cool (below +15°C) , protected from light Take measures to prevent electrostatic charging.

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8. Exposure controls/personal protection
Specific control parameter
MAK Germany (max. workplace conc.)
Styrene 20 ml/m3 or 86 mg/m3

Personal protective equipment:
Respiratory protection: required when vapours/aerosols are generated. when vapours are generated. Filter A (acc. to DIN 3181) for vapours of organic compounds
Eye protection: required
Hand protection: required
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: sweetish
pH value not available
Viscosity dynamic (20 °C) 0.7 mPa*s
Melting temperature -31 °C
Boiling temperature 145 °C
Ignition temperature 480 °C
Flash point 31 °C
Explosion limits lower 1.1 Vol%
upper 8.9 Vol%
Vapour pressure (20 °C) 6 hPa
Density (20 °C) 0.9 g/cm3
Solubility in water (20 °C) 0.24 g/l
organic solvents (20 °C) soluble

Further information
Distillable in an undecomposed state at normal pressure.

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10. Stability and reactivity
Conditions to be avoided
warmth/heat

Substances to be avoided
acids and polymerization initiators

Hazardous decomposition products
Formation of: peroxi compounds

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11. Toxicological information
Acute toxicity
LD50 (oral, rat): 5000 mg/kg

Further toxicological information

After skin contact: Irritations.
After eye contact: Irritations. After inhalation: Irritations of the mucous membranes, coughing, and dyspnoea. After absorption of toxic quantities: headache , dizziness , narcosis An embryotoxic effect need not be feared when the threshold limit value is observed. The possibility of a carcinogenic effect has not yet been fully assessed.



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12. Ecological information
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: 31c
ADR/RID class: 3 Number and letter: 31c
Name of material: 2055 STYREN, MONOMER, STABILISIERT

River transport ADN/ADNR
not examined

Sea transport IMDG
IMDG class: 3.3 UN-No.: 2055 Packaging group: II
Ems: 3-07 MFAG: 310
Correct technical name: STYRENE MONOMER, INHIBITED MARINE POLLUTANT

Air transport ICAO-TI and IATA-DGR
ICAO/IATA class: 3 UN/ID-No.: 2055 Packaging group: III
Correct technical name: STYRENE 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: Xn Harmful immediately and show this container or label.
R-phrases: R 10-20-36/38 Flammable. Harmful by inhalation. Irritating to eyes and skin.
S-phrases: S 23.2 Do not breathe vapour.
EC-No.: 202-851-5 EC label

German regulations
Water pollution class 2 (polluting substance)

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16. Other information
no information available


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