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1. Identification of the substance/preparation and of the company/undertaking |
Identification of the product | ||
Catalogue No.: | 100005 | |
Product name: | Acetaldehyde for biochemistry |
Manufacturer/supplier identification | ||
Company: |
Merck Ltd. 9th Floor, Monterey Tower, 2170 New Petchburi Road, Bangkapi, Huaykwang, Bangkok 10320 Tel: (662) 308 - 0218 |
2. Composition/information on ingredients |
CAS-No.: | 75-07-0 | EC-Index-No.: | 605-003-00-6 | ||
Molar mass: | 44.05 | EINECS-No.: | 200-836-8 | ||
Molecular formula: | C2H4O |
3. Hazards identification |
Extremely flammable. Irritating to eyes and respiratory system. Possible risks of irreversible effects. |
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. After swallowing: make victim drink plenty of water, induce vomiting. Immediately summon doctor. If breathing stops: mouth-to-mouth respiration or mechanical ventilation. |
5. Fire-fighting measures |
Suitable extinguishing media: |
Water, CO2, foam, powder. |
Special risks: |
Combustible. Vapours heavier than air. Formation of explosive mixtures possible with air. Keep away from sources of ignition. Take measures to prevent electrostatic charging. |
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. |
7. Handling and storage |
Handling: |
No further requirements. |
Storage: |
Tightly closed. In a well-ventilated place. Keep away from sources of ignition and heat. Cool (+2°C to +8°C). |
8. Exposure controls/personal protection |
Specific control parameter | ||
MAK Germany (max. workplace conc.) | ||
Acetaldehyde | 50 ml/m3 or 91 mg/m3 |
Personal protective equipment: | |
Respiratory protection: | required when vapours/aerosols are generated. |
Eye protection: | required |
Hand protection: | required |
Other protective equipment: | Antistatic protective clothing. |
Industrial hygiene: | Change contaminated clothing. Application of skin-protective barrier cream recommended. Wash hands and face after working with substance. |
9. Physical and chemical properties |
Form: | liquid | |||
Colour: | colourless | |||
Odour: | pungent | |||
pH value | ||||
at 10 g/l water | (20 °C) | ~ 5 | ||
Melting temperature | -123 °C | |||
Boiling temperature | 21 °C | |||
Ignition temperature | 140 °C | |||
Flash point | -27 °C | |||
Explosion limits | lower | 4 Vol% | ||
upper | 57 Vol% | |||
Vapour pressure | (20 °C) | 1007 mbar | ||
Density | (20 °C) | 0.78 g/cm3 | ||
Solubility in | water | (20 °C) | soluble | |
ethanol | (20 °C) | soluble |
10. Stability and reactivity |
Conditions to be avoided |
Heating. |
Substances to be avoided |
alkali hydroxides , halogens , halogen oxides , alkalis , acids , air , oxidizing agent , oxygen , nitrogen oxides , hydrogen peroxide , iron |
Hazardous decomposition products |
no information available |
Further information |
highly reactive ; tends to polymerize ; Formation of peroxides possible. incompatible with : various plastics , rubber Explosible with air in a vaporous/gaseous state. |
11. Toxicological information |
Acute toxicity |
LD50 (oral, rat): 661 mg/kg ; LC50 (inhalation, rat): 24 g/m3 /4 h Lowest concentration known to have caused toxic symptoms in man after inhalation: TCLo (inhalation, human): 134 ppm(V) /30 min Eye irritation test (rabbit): strong irritant effect |
Subacute to chronic toxicity |
The carcinogenic potential requires further clarification. The possibility of an embryotoxic effect has not yet been fully assessed. |
Further toxicological information |
After inhalation: mucosal irritations , coughing , dyspnoea After skin contact: local irritation symptoms After eye contact: Lacrimal irritation due to vapours. Systemic effects: nausea , vomiting , spasms , narcosis , depressed respiration Other notes: Absorption may result in damage of the following: liver |
12. Ecological information |
Biologic degradation: Easily eliminable. Behavior in environmental compartments: Low bioaccumulation potential. Ecotoxic effects: Biological effects: Toxic for aquatic organisms Hazard for drinking water supplies. Risk of formation of explosive vapours above water surface. Fish toxicity: L.idus LC50: 124 mg/l ; Protozoa : EC10: 57 mg/l Further ecologic data: Do not allow to enter waters, waste water, or soil! |
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. |
14. Transport information |
Transport over land ADR/RID and GGVS/GGVE (Germany) | ||||
GGVS/GGVE class: | 3 | Number and letter: | 1a | |
ADR/RID class: | 3 | Number and letter: | 1a | |
Name of material: | 1089 ACETALDEHYD |
River transport ADN/ADNR | |||
not examined |
Sea transport IMDG | ||||||
IMDG class: | 3.1 | UN-No.: | 1089 | Packaging group: | I | |
Ems: | 3-06 | MFAG: | 300 | |||
Correct technical name: | ACETALDEHYDE-MARINE POLLUTANT |
Air transport ICAO-TI and IATA-DGR | |||||
ICAO/IATA class: | 3 | UN/ID-No.: | 1089 | Packaging group: | I |
Correct technical name: | ACETALDEHYDE |
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. |
15. Regulatory information |
Labelling according to EC Directives | ||
Symbol: | F+ | Extremely flammable immediately and show this container or label. |
Xn | Harmful immediately and show this container or label. | |
R-phrases: | R 12-36/37-40 | Extremely flammable. Irritating to eyes and respiratory system. Possible risks of irreversible effects. |
S-phrases: | S 16-33-36/37 | Keep away from sources of ignition - No smoking. Take precautionary measures against static discharges. Wear suitable protective clothing and gloves. |
EC-No.: | 200-836-8 | EC label |
German regulations | ||
Water pollution class | 1 | (slightly polluting substance) |
16. Other information |
Reason for alteration |
Change in transport classification. Change in the chapter on toxicology. |