Acetaldehyde

SIAL/00070 - puriss. p.a., anhydrous, ≥99.5% (GC)

Synonym: Ethanal

CAS Number: 75-07-0
Empirical Formula (Hill Notation): C₂H₄O
Molecular Weight: 44.05
EC Number: 200-836-8
MDL Number: MFCD00006991
Linear Formula: CH₃CHO
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-00070-100ML	100 mL	$82.20 1/EAAdd To Favorites	Add To Favorites
45-00070-500ML	500 mL	$200.00 1/EAAdd To Favorites	Add To Favorites
45-00070-1L	1 L	$270.00 1/EAAdd To Favorites	Add To Favorites

assay	≥99.5% (GC)
autoignition temp.	365 °F
biological source	synthetic
bp	21 °C (lit.)
cation traces	Al: ≤0.5 mg/kg
	Ba: ≤0.1 mg/kg
	Bi: ≤0.1 mg/kg
	Ca: ≤0.5 mg/kg
	Cd: ≤0.05 mg/kg
	Co: ≤0.02 mg/kg
	Cr: ≤0.02 mg/kg
	Cu: ≤0.02 mg/kg
	Fe: ≤0.5 mg/kg
	K: ≤0.5 mg/kg
	Li: ≤0.1 mg/kg
	Mg: ≤0.1 mg/kg
	Mn: ≤0.02 mg/kg
	Mo: ≤0.1 mg/kg
	Na: ≤0.5 mg/kg
	Ni: ≤0.02 mg/kg
	Pb: ≤0.1 mg/kg
	Sr: ≤0.1 mg/kg
	Zn: ≤0.1 mg/kg
density	0.785 g/mL at 25 °C (lit.)
evapn. residue	≤0.002%
expl. lim.	60 %
form	liquid
functional group	aldehyde
grade	anhydrous
	puriss. p.a.
impurities	≤0.5% free acid (as CH₃COOH)
InChI	1S/C2H4O/c1-2-3/h2H,1H3
InChI key	IKHGUXGNUITLKF-UHFFFAOYSA-N
mp	−125 °C (lit.)
quality	anhydrous
Quality Level	100
refractive index	n20/D 1.332
	n20/D 1.332 (lit.)
SMILES string	CC=O
storage temp.	2-8°C
vapor density	1.52 (vs air)
vapor pressure	14.63 psi ( 20 °C)

Application:	Acetaldehyde may be used for the enzymatic synthesis of fatty acids.
Application:	It was used in the plasma polymerization for deposition of reactive aldehyde groups onto substrate, in a study to produce fibrous biomaterials with cell adhesive and also repulsive capability in biomedical applications. It was also used as calibration standard during determination of acetone, acetaldehyde, ethanol, and methanol in different human matrices, such as whole blood, vitreous humour, and urine using gas chromatography with flame ionization detection method (GC–FID).
Caution:	forms easily paraldehyde
General description:	Acetaldehyde is an organic colorless flammable liquid. It can be produced by hydration of acetylene and by catalytic oxidation of ethyl alcohol. It is mainly used in manufacturing acetic acid.
General description:	Mechanism of the thermal decomposition of acetaldehyde has been reported. It is a product of ethanol metabolism in the liver, binds covalently to various proteins, thereby alters the liver function and structure. The aldol condensation of acetaldehyde and heptanal in the presence of hydrotalcite-type catalysts has been described.

Symbol	GHS02,GHS07,GHS08
Signal word	Danger
Hazard statements	H224 - H319 - H335 - H341 - H350
Precautionary statements	P202 - P210 - P233 - P305 + P351 + P338 - P308 + P313 - P403 + P233
Hazard Codes	F+,Xn
Risk Statements	12-36/37-40
Safety Statements	16-33-36/37
RIDADR	UN1089 - class 3 - PG 1 - Acetaldehyde
WGK Germany	WGK 3
Flash Point(F)	-38.0 °F - closed cup
Flash Point(C)	-38.89 °C - closed cup

Purity	≥99.5% (GC)
bp	21 °C (lit.)
mp	−125 °C (lit.)
Density	0.785 g/mL at 25 °C (lit.)
Refractive Index	n20/D 1.332 (lit.); n20/D 1.332
Storage Temp.	2-8°C
UNSPSC	12352100