Ethanol

CH3CH2OH

 

 

EtOH

CH3CH2OH; Mw=46.1g/M;

p(w/w) %(v/v) % p(w/w) %(v/v) % p(w/w) %(v/v) %
0.7892100.00  0.8385.4  0.8960.5 
0.7999.7  0.8481.4  0.9056.12 
0.8096.5  0.8577.3  0.9151.71 
0.804295.0096.80 0.8673.2  0.9247.2 
0.8192.9  0.867870.0276.96 0.9342.50 
0.811492.4295.01 0.8769.0  0.9437.6 
0.817890.0593.31 0.8864.8     
0.8289.2  0.885562.4070.01    
  • very hygroscopic, (store at NT in tightly closed bottle); tmelt.=-117.3oC; tboil.=78.5oC.

  • Conc.Stock300ml
    EtOH70%96%190g
    H2O mQ70ml

    Preparation of 100% EtOH.

    1. dry CuSO4 (at 65oC, 1-2 days) to the practically white color;
    2. mix about 1/4 of volume of the CuSO4 with 3/4 volume of 96%EtOH;
    3. mix intensively;
    4. leave for 1-2 days (CuSO4 will "take" water from ethanol).

    Untested information test for the "100%" ethanol: add a drop of ethanol to the xylene. No mist should appear in the case of 100% ethanol.