402788 Sigma-Aldrich 
Acetaldehyde
ACS reagent, ≥99.5%
DOWNLOAD MSDS (PDF)
Synonym: Ethanal 
    
    
CAS Number 75-07-0
    
    
    
Linear Formula CH3CHO 
    
    
    
Molecular Weight 44.05 
    
    
    
 Beilstein Registry Number 505984 
    
    
    
 EC Number 200-836-8 
    
    
 PubChem Substance ID 24865119 
    
    
Popular Documents:  Specification Sheet(PDF)Properties
    
    
        
            
Related Categories
            
ACS Grade, Aldehydes, Building Blocks, C1 to C6, Carbonyl Compounds,             
            
Chemical Synthesis, Essential Chemicals, Inorganic Salts, Solutions and Reagents, Organic Building Blocks, Research Essentials
            More...
            
        
        
            
grade  
            
ACS reagent
        
        
            
vapor density  
            
1.52 (vs air)
        
        
            
vapor pressure  
            
14.63 psi ( 20 °C)
        
        
            
assay  
            
≥99.5%
        
        
            
autoignition temp.  
            
365 °F
        
        
            
expl. lim.  
            
60 %
        
        
            
impurities  
            
≤0.008 meq/g Titr. acid
        
        
            
evapn. residue  
            
≤0.005%
        
        
            
refractive index  
            
n20/D 1.332(lit.)
        
        
            
bp  
            
21 °C(lit.)
        
        
            
mp  
            
−125 °C(lit.)
        
        
            
density  
            
0.785 g/mL at 25 °C(lit.)
        
        
            
storage temp.  
            
2-8°C