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.: 841607
Product name: Acetone cyanohydrin 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
CAS-No.: 75-86-5 EC-Index-No.: 608-004-00-X
Molar mass: 85.11 EINECS-No.: 200-909-4
Molecular formula: C4H7NO

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3. Hazards identification
Very toxic by inhalation, in contact with skin and if swallowed. Very toxic to aquatic organisms.

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4. First aid measures
After inhalation: fresh air. Immediately summon doctor.
After skin contact: wash off with plenty of water. Immediately remove contaminated clothing.
After eye contact: rinse out with plenty of water for at least 10 minutes with the eyelid held wide open. Immediately summon eye specialist.
After swallowing: make victim drink plenty of water, induce vomiting. Immediately summon doctor. If victim is unconscious: lateral recumbent position. If breathing stops: immediately apply mechanical ventilation, if necessary also oxygen. Keep airways free.
First-aid personnel: ensure self-protection! Decomposition products: hydrogen cyanide

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5. Fire-fighting measures
Suitable extinguishing media:
powder Fire extinguisher: powder , carbon dioxide

Special risks:
Combustible. Vapours heavier than air. Forms explosive mixtures with air on intense heating. Development of hazardous combustion gases or vapours possible in the event of fire. The following may develop in event of fire: nitrogen oxides , hydrogen cyanide

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

Other information:
Cool container with spray water from a save distance.

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

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

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:
Notes for safe handling:
Ensure adequate exhaustion and ventilation. Do not feed back exhausted air into working areas.

Storage:
Cool (below +15°C). Tightly closed in a well-ventilated place. Accesible only for authorised persons.

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8. Exposure controls/personal protection
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. Under no circumstances eat or drink at workplace. Work under hood . Do not inhale substance.

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9. Physical and chemical properties
Form: liquid
Colour: yellow
Odour: bitter almond-like
pH value not available
Melting temperature -19 °C
Boiling temperature 82 °C
Ignition temperature 687 °C
Flash point 75 °C
Explosion limits lower 2.2 Vol%
upper 12 Vol%
Vapour pressure (20 °C) 0.8 mmHg
Relative vapour density_ (95 °C) 2.93
Density (20 °C) 0.932 g/cm3

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

Substances to be avoided
oxidizing agent , sulfuric acid

Hazardous decomposition products
hydrogen cyanide

Stabilizer
sulfuric acid

Further information
sensitive to moisture

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11. Toxicological information
Acute toxicity
LD50 (oral, rat): 18.6 mg/kg
LD50 (dermal, rabbit): 16 mg/kg

Further toxicological information
After inhalation: Irritations of the mucous membranes, coughing, and dyspnoea.
After skin contact: Irritations
Danger of skin absorption.
After eye contact: Severe irritations.
After swallowing: irritations of mucous membranes in the mouth, pharynx, oesophagus and gastrointestinal tract.
The following applies to cyanogen compounds/ nitriles in general: utmost caution! Release of hydrocyanic acid is possible - blockade of cellular respiration. Cardiovascular disorders, dyspnoea, unconsciousness.

Systemic effects: headache , confusion , Nausea, vomiting

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

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12. Ecological information
Ecotoxic effects:
Quantitative data on the ecological effect of this product are not available.

Further ecologic data:
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: 6.1 Number and letter: 11a
ADR/RID class: 6.1 Number and letter: 11a
Name of material: 1541 ACETONCYANHYDRIN, STABILISIERT

River transport ADN/ADNR
not examined

Sea transport IMDG
IMDG class: 6.1 UN-No.: 1541 Packaging group: I
Ems: 6.1-02 MFAG: 215
Correct technical name: ACETONE CYANOHYDRIN,STABILIZED - MARINE POLLUTANT

Air transport ICAO-TI and IATA-DGR
ICAO/IATA class: 6.1 UN/ID-No.: 1541 Packaging group:
Correct technical name: ACETONE CYANOHYDRIN,STABILIZED - VERBOTEN

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: T+ Very toxic immediately and show this container or label.
N Dangerous for the environment immediately and show this container or label.
R-phrases: R 26/27/28-50 Very toxic by inhalation, in contact with skin and if swallowed. Very toxic to aquatic organisms.
S-phrases: S 7/9-27-45-61 Keep container tightly closed and in a well-ventilated place. Take off immediately all contaminated clothing. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). Avoid release to the environment. Refer to special instructions/Safety data sheets.
EC-No.: 200-909-4 EC label

German regulations
Water pollution class 3 (highly polluting substance)

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16. Other information
no information available


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