Acetaldehyde SDS

Flammable liquids, Category 1

Eye irritation, Category 2

Specific target organ toxicity – single exposure, Category 3

Germ cell mutagenicity, Category 2

Carcinogenicity, Category 1B

H224 Extremely flammable liquid and vapour

H319 Causes serious eye irritation

H335 May cause respiratory irritation

H341 Suspected of causing genetic defects

H350 May cause cancer

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P233 Keep container tightly closed.

P240 Ground and bond container and receiving equipment.

P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.

P242 Use non-sparking tools.

P243 Take action to prevent static discharges.

P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

P264 Wash ... thoroughly after handling.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

P203 Obtain, read and follow all safety instructions before use.

P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower].

P370+P378 In case of fire: Use ... to extinguish.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P319 Get medical help if you feel unwell.

P318 IF exposed or concerned, get medical advice.

P403+P235 Store in a well-ventilated place. Keep cool.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

P405 Store locked up.

P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

no data available

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

Breathing vapors will be irritating and may cause nausea, vomiting, headache, and unconsciousness. Contact with eyes may cause burns and eye damage. Skin contact from clothing wet with the chemical causes burns or severe irritation. (USCG, 1999)

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Aldehydes and Related Compounds

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

Special Hazards of Combustion Products: Produces irritating vapor when heated Behavior in Fire: Vapors are heavier than air and may travel a considerable distance to a source of ignition and flash back. (USCG, 1999)

Use water in large amounts, powder, alcohol-resistant foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

Remove all ignition sources. Evacuate danger area! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents. Remove vapour with fine water spray.

Remove all ignition sources. Evacuate danger area! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents. Remove vapour with fine water spray.

Accidental release measures. Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapors accumulating to form explosive concentrations. Vapors can accumulate in low areas.; Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.; Methods and materials for containment and cleaning up: Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations.

NO open flames, NO sparks and NO smoking. NO contact with hot surfaces. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Fireproof. Separated from incompatible materials. See Chemical Dangers. Cooled. Keep in the dark. Store only if stabilized.Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Recommended storage temperature: 2 - 8 deg C.

TLV: 25 ppm as STEL; (ceiling value): A3 (confirmed animal carcinogen with unknown relevance to humans).MAK: 91 mg/m3, 50 ppm; peak limitation category: I(1); carcinogen category: 5; pregnancy risk group: C; germ cell mutagen group: 5

no data available

Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.

Wear safety goggles or eye protection in combination with breathing protection.

Protective gloves.

Use ventilation. Use local exhaust or breathing protection.

no data available

NIOSH considers acetaldehyde to be a potential occupational carcinogen.

Contact with air generates explosive peroxides. The substance may polymerize under the influence of acids and alkaline hydroxides in the presence of trace metals (iron). This generates fire and explosion hazard. The substance is a strong reducing agent. It reacts violently with oxidants, strong acids, halogens and amines. This generates fire or explosion hazard.

Avoid exposure to air any longer than necessary so as to prevent peroxide formation. Stable under recommended storage conditions. Test for peroxide formation before distillation or evaporation. Test for peroxide formation or discard after 1 year.

Highly flammable liquid.The vapour is heavier than air and may travel along the ground; distant ignition possible.ACETALDEHYDE undergoes a vigorously exothermic condensation reaction in contact with strong acids, bases or traces of metals. Can react vigorously with oxidizing reagents such as dinitrogen pentaoxide, hydrogen peroxide, oxygen, silver nitrate, etc. Contamination often leads either to reaction with the contaminant or polymerization, both with the evolution of heat. Can react violently with acid anhydrides, alcohols, ketones, phenols, ammonia, hydrogen cyanide, hydrogen sulfide, halogens, phosphorus, isocyanates, concentrated sulfuric acid, and aliphatic amines. Reactions with cobalt chloride, mercury(II) chlorate or perchlorate form sensitive, explosive products [Sax, 9th ed., 1996, p. 5]. An oxygenation reaction of acetaldehyde in the presence of cobalt acetate at -20°C exploded violently when stirred. The event was ascribed to peroxyacetate formation [Phillips B. et al., J. Am. Chem. Soc., 1957, 79, p. 5982].

no data available

Incompatible materials: Oxidizing agents, reducing agents, acids, nitric acid, peroxides, bases, sodium hydroxide, amines, ammonia, oxygen. Warning: Acetaldehyde is oxidized rapidly and exothermically by air, to acetic acid, acid anhydrides, alcohols, halogens, ketones, phenol, hydrogen sulfide gas, hydrogen peroxide.

Decomposes above 400 deg C to form ... methane & carbon monoxide.

no data available

no data available

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no data available

Acetaldehyde is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.

No information is available on the reproductive or developmental effects of acetaldehyde in humans. Acetaldehyde has been shown, in animals, to cross the placenta to the fetus. Data from animal studies suggest that acetaldehyde may be a potential developmental toxin. In one study, a high incidence of embryonic resorptions was observed in mice injected with acetaldehyde. In rats exposed to acetaldehyde by injection, skeletal malformations, reduced birth weight, and increased postnatal mortality have been reported.

The substance is mildly irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system.

Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the respiratory tract. This may result in tissue lesions. This substance is possibly carcinogenic to humans.

A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

AEROBIC: Acetaldehyde, present at 100 mg/L, reached 80% of its theoretical BOD in 2 weeks using an activated sludge inoculum at 30 mg/L and the Japanese MITI test which classified the compound as readily biodegradable(1). Acetaldehyde was also easily biodegraded by biological sewage treatment(2). Other laboratory screening tests confirm the biodegradability of acetaldehyde by acclimated sludge and sewage(3-7) with theoretical BODs of 28% in 24 hr(3), 100% in 5 hr(4), 40.5% in 5 days(8), and 70% in 5 days(5). Acetaldehyde was oxidized in a silty clay loam but no rates were given(9). In a die-away test in seawater, acetaldehyde concentrations declined to approximately 25% of initial values in 1 hr, whereas no decline in concentration was observed in sterile controls(10).

An estimated BCF of 3 was calculated in fish for acetaldehyde(SRC), using a log Kow of -0.34(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

Using a structure estimation method based on molecular connectivity indices(1), the Koc of acetaldehyde can be estimated to be 1(SRC). According to a classification scheme(2), this estimated Koc value suggests that acetaldehyde is expected to have very high mobility in soil.

no data available

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

ADR/RID: UN1089 (For reference only, please check.)

IMDG: UN1089 (For reference only, please check.)

IATA: UN1089 (For reference only, please check.)

ADR/RID: ACETALDEHYDE (For reference only, please check.)

IMDG: ACETALDEHYDE (For reference only, please check.)

IATA: ACETALDEHYDE (For reference only, please check.)

ADR/RID: 3 (For reference only, please check.)

IMDG: 3 (For reference only, please check.)

IATA: 3 (For reference only, please check.)

ADR/RID: I (For reference only, please check.)

IMDG: I (For reference only, please check.)

IATA: I (For reference only, please check.)

ADR/RID: No

IMDG: No

IATA: No

no data available

no data available

Depending on the degree of exposure, periodic medical examination is suggested.The occupational exposure limit value should not be exceeded during any part of the working exposure.An added stabilizer or inhibitor can influence the toxicological properties of this substance; consult an expert.Rinse contaminated clothing with plenty of water because of fire hazard.