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00070 Sigma-Aldrich

Acetaldehyde

puriss. p.a., anhydrous, ≥99.5% (GC)

Synonym: Ethanal

  • CAS Number 75-07-0

  • Linear Formula CH3CHO

  • Molecular Weight 44.05

  •  Beilstein Registry Number 505984

  •  EC Number 200-836-8

  •  MDL number MFCD00006991

  •  PubChem Substance ID 24844966

  •  eCl@ss 39021102

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Properties

Related Categories A-B, Puriss p.a., Acacia, Aldehydes, Allium sativum (Garlic), Analytical Reagents,
vapor density   1.52 (vs air)
vapor pressure   14.63 psi ( 20 °C)
grade   puriss. p.a.
assay   ≥99.5% (GC)
autoignition temp.   365 °F
quality   anhydrous
expl. lim.   60 %
impurities   ≤0.5% free acid (as CH3COOH)
evapn. residue   ≤0.002%
refractive index   n20/D 1.332(lit.)
  n20/D 1.332
bp   21 °C(lit.)
mp   −125 °C(lit.)
density   0.785 g/mL at 25 °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: ≤0.1 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
storage temp.   2-8°C

Description

Caution

forms easily paraldehyde

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Application

Acetaldehyde may be used for the enzymatic synthesis of fatty acids.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1089 3 / PGI
WGK Germany 
1
RTECS 
AB1925000
Flash Point(F) 
-38.2 °F
Flash Point(C) 
-39 °C
Protocols & Articles

Articles

Pyruvate Transformations

Depending on the environmental conditions, e.g. whether oxygen is present or not, pyruvate, a product of glucose metabolism, can undergo different biotransformations as shown in Figure 2. Under reduc...
BioFiles 2007, 2.6, 10.
Keywords: Anaerobic, Biofiles, Catalysis, Environmental, Metabolism

Peer-Reviewed Papers
15

References

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