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
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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
        
    



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