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.: 800408
Product name: Maleic anhydride 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
Maleic acid anhydride

CAS-No.: 108-31-6 EC-Index-No.: 607-096-00-9
Molar mass: 98.06 EINECS-No.: 203-571-6
Molecular formula: C4H2O3

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3. Hazards identification
Harmful if swallowed. Irritating to eyes, respiratory system and skin. May cause sensitization by inhalation.

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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:
powder , CO2 , foam

Special risks:
Combustible. Danger of dust explosion. Keep workplace dry. Do not allow product to come into contact with water.

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6. Accidental release measures
Take up dry.

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7. Handling and storage
Handling:
No further requirements.

Storage:
tightly closed , dry , in a well-ventilated place

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8. Exposure controls/personal protection
Specific control parameter
MAK Germany (max. workplace conc.)
Maleic acid anhydride 0.1 ml/m3 or 0.41 mg/m3

Personal protective equipment:
Respiratory protection: required
Eye protection: required
Hand protection: required
Industrial hygiene: Change contaminated clothing. Application of skin-protective barrier cream recommended. Wash hands after working with substance. Work under hood . Do not inhale substance.

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9. Physical and chemical properties
Form: scales
Colour: white
Odour: aromatic
pH value not available
Melting temperature 51 - 53 °C
Boiling temperature not available
Ignition temperature 475 °C
Flash point 103 °C
Explosion limits lower 1.4 Vol%
upper
Vapour pressure (40 °C) 1.3 hPa
Density (55 °C) 1.32 g/cm3
Solubility in water (20 °C) (decomposition)
acetone (20 °C) soluble
Thermal decomposition > 200 °C

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10. Stability and reactivity
Conditions to be avoided
no information available

Substances to be avoided
alkali metals , amines and strong alkalis

Hazardous decomposition products
no information available

Further information
sensitive to moisture

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11. Toxicological information
Acute toxicity
LD50 (oral, rat): 400 mg/kg
LD50 (dermal, rabbit): 2620 mg/kg

Further toxicological information

After skin contact: Severe irritations.
After eye contact: Severe irritations. After inhalation: Irritations of the mucous membranes, coughing, and dyspnoea. Sensitization with allergic manifestationsin predisposed persons. After uptake of large quantities: Toxic effect on: lungs , kidneys


Further data
Further hazardous properties cannot be excluded.
The product should be handled with the care usual when dealing with chemicals.

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12. Ecological information
Adverse ecological effects cannot be excluded in the event of improper handling or disposal.

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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: 8 Number and letter: 31c
ADR/RID class: 8 Number and letter: 31c
Name of material: 2215 MALEINSAEUREANHYDRID

River transport ADN/ADNR
not examined

Sea transport IMDG
IMDG class: 8 UN-No.: 2215 Packaging group: III
Ems: 8-05 MFAG: 700
Correct technical name: MALEIC ANHYDRIDE

Air transport ICAO-TI and IATA-DGR
ICAO/IATA class: 8 UN/ID-No.: 2215 Packaging group: III
Correct technical name: MALEIC ANHYDRIDE

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 22-36/37/38-42 Harmful if swallowed. Irritating to eyes, respiratory system and skin. May cause sensitization by inhalation.
S-phrases: S 22-28.1-39 Do not breathe dust. After contact with skin, wash immediately with plenty of water. Wear eye/face protection.
EC-No.: 203-571-6 EC label

German regulations
Water pollution class 1 (slightly polluting substance)

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16. Other information
no information available


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