Flavors & Fragrances
REACH
Acetaldehyde
CAS Number
75-07-0
EC Number
200-836-8
FEMA Number
FEMA 2003
What is Acetaldehyde?
Acetaldehyde (CAS 75-07-0), also known as ethyl aldehyde and acetic aldehyde, is a short-chain aldehyde used primarily as a chemical intermediate and flavoring agent. FEMA 2003.
Where is Acetaldehyde used?
- Chemical intermediate: reactive carbonyl group as building block for downstream compounds at industrial scale
- Food and beverage: fresh, fruity and ethereal notes in flavor formulations, particularly dairy, fruit and alcoholic beverage profiles
- Fragrance: intermediate in aldehyde-based perfume accords with clean, soapy top notes
- Pharmaceutical synthesis: precursor in production of acetic acid and pyridine derivatives
- It also serves as a preservative intermediate where controlled antimicrobial action is required during processing.
Good to know: Food-grade material conforming to FCC specifications is available for flavor applications; technical-grade material is supplied for industrial synthesis and chemical manufacturing use.
Other Names (Synonyms)
ethyl aldehyde|acetic aldehyde|aldehyde|ethanal|Aldeide acetica|Acetic ethanol|Octowy aldehyd
What are the physical properties of Acetaldehyde?
Melting Point -123.5 °C
Boiling Point 21 °C
Density 0.788 g/cm³ @ Temp: 16 °C
Flash Point 133 °F
Appearance Acetaldehyde is a flammable, volatile, colorless liquid, or gas. It has a characteristic, penetrating, fruity odor.
Color White to off-white
Odor Pungent, fruity odor detectable at 0.0068 to 1000 ppm (mean = 0.067 ppm)
Form solution
Water Solubility > 500 g/L (20 ºC)
Vapor Pressure 52 mm Hg ( 37 °C)
Refractive Index n 20/D 1.377
pH 5 (10g/l, H2O, 20℃)
Log P -0.16
How is Acetaldehyde classified and handled safely? Learn More
Danger
GHS02· Flammable GHS07· Irritant GHS08· Health Hazard GHS06· Toxic
Hazard Statements
H224 Extremely flammable liquid and vapor
H302 Harmful if swallowed
H311 Toxic in contact with skin
H315 Causes skin irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
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.
Which trade and regulatory codes apply to Acetaldehyde?
HS Code 29121200
UN Number 1198
ADR Class 3
Packing Group III
Storage Class 3 - Flammable liquids
WGK (Germany) 2