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Acetaldehyde CAS#75-07-0
CAS Number: 75-07-0
Chemical Formula:C2H4O
Synonyms:
FORMALDE-FRESH SOLUTION, BUFFERED
FORMALDEHYDE, BUFFERED
FORMALDEHYDE, CARSON-MILLON
Appearance: White Solid
HS Code:29121200
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Acetaldehyde CAS#75-07-0
Acetaldehyde, also called ethanal, is the simplest aldehyde (CH3CHO). Acetaldehyde is a colourless and volatile liquid made by the catalytic oxidation of ethanol, with a sharp and fruity odour.It is widely used industrially as a chemical intermediate.Acetaldehyde is also a metabolite of sugars and ethanol in humans,is found naturally in the environment, and is a product of biomass combustion.
Parameters
Melting point | -125 °C (lit.) |
Boiling point | 21 °C (lit.) |
density | 0.785 g/mL at 25 °C (lit.) |
vapor density | 1.03 (vs air) |
vapor pressure | 52 mm Hg ( 37 °C) |
refractive index | n |
FEMA | 2003 | ACETALDEHYDE |
Fp | 133 °F |
storage temp. | 2-8°C |
solubility | alcohols: soluble |
pka | 13.57(at 25℃) |
form | solution |
color | White to off-white |
Specific Gravity | 0.823 (20/4℃) (?90% Soln.) |
Odor | Pungent, fruity odor detectable at 0.0068 to 1000 ppm (mean = 0.067 ppm) |
PH | 5 (10g/l, H2O, 20℃) |
Odor Threshold | 0.0015ppm |
Odor Type | ethereal |
biological source | synthetic |
explosive limit | 4-57%(V) |
Water Solubility | > 500 g/L (20 ºC) |
Sensitive | Air Sensitive |
Merck | 14,39 |
JECFA Number | 80 |
BRN | 505984 |
Henry's Law Constant | 7.69 at 25 °C (Snider and Dawson, 1985:Benkelberg et al., 1995) |
Exposure limits | TLV-TWA 180 mg/m3 (100 ppm) (ACGIH), 360 mg/m3 (200 ppm) (NIOSH); STEL 270 mg/m3 (150 ppm); IDLH 10,000 ppm. |
Dielectric constant | 21.8（5℃） |
Stability: | Stable, but air sensitive. Substances to be avoided include strong oxidizing agents, strong acids, reducing agents, alkalies, halogens, halogen oxides. Highly flammable. Vapour/air mixtures explosive over a very wide concentration range. May form peroxides in storage. |
InChIKey | IKHGUXGNUITLKF-UHFFFAOYSA-N |
LogP | -0.16 |
CAS DataBase Reference | 75-07-0(CAS DataBase Reference) |
NIST Chemistry Reference | Acetaldehyde(75-07-0) |
IARC | 2B (Vol. 36, Sup 7, 71) 1999, 1 (Vol. 100E) 2012 |
EPA Substance Registry System | Acetaldehyde (75-07-0) |
Safety Information
Hazard Codes | T,Xn,F+,F |
Risk Statements | 23/24/25-34-40-43-36/37-12-67-11-41-22-10-19 |
Safety Statements | 36/37-33-16-26 |
RIDADR | UN 1198 3/PG 3 |
WGK Germany | 2 |
RTECS | LP8925000 |
F | 10 |
Autoignition Temperature | 185 °C |
TSCA | Yes |
HazardClass | 3 |
PackingGroup | I |
HS Code | 29121200 |
Hazardous Substances Data | 75-07-0(Hazardous Substances Data) |
Toxicity | LD50 orally in rats: 1930 mg/kg (Smyth) |
IDLA | 2,000 ppm |
Product Application of Acetaldehyde CAS#75-07-0
Acetaldehyde can also be used as an odorant, and it found in nature in many foods such as ripe fruits, cheese and heated milk. acetaldehyde occurs naturally during fermentation, and low levels of acetaldehyde are to be found in certain foods. It is mainly used for preparation of citrus, apple, cream type essence, etc.
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