Primary tabs

Many kind of alcohols chemical Man

To MOST  PEOPLE ,alcohol  is the  strong  stuff  in  beer,  wine, and  hard  liquor. But  to  a  chemist,  this  is just one  of many  alcohols.  Alcohols may be considered hydrocarbons in  which  one  or  more  hydrogen   (H)  atoms  are  replaced   by   
hydroxy]  (OH)  groups.  Their  names  are  made   up   from  the  names  of  the  hydrocarbons  to  which  they  are  related  by  giving  these  an  *"-ol" ending.  In  this  way,CH„methane,   becomes   CH3OH,   methanol   (also  called  methyl  alcohol);  C2H6 ethane,  becomes  C2H5OH,  ethanol  (also  known  as  ethyl  or  grain  al-cohol)and  so on. Methanol  (CH3OH)  was  originally  called  wood  alcohol  because it  was made by  the  de-structive  distillation  of  wood.  It  is  very  poisonous  and  is therefore  used  to  "denature"  ethanol,  making  this  unfit  for  drinking.  S Ethanol  (C2H5OH)  is  produced  today,  to  a  great  extent,  in the  same  way  in which  it  was made  thou-sands  of  years  ago, by  a process  called  fermentation.  In this, the  tiny plant  cells of yeast  are made  to grow in  the  solution  of  a  simple  sugar,  such  as  glucose  (C6H,j06).  In  growing, the  yeast  cells give  off  a sub-stance  called  zymase.  This  acts  as  a  catalyst   and   turns  the  glucose  into  ethanol  and  carbon  dioxide:  
GSHHOS•—2C2H5OH  +  2C02 j  The   ethanol   is  finally   separated   from   the   watery   liquid  by  distillation.  Glycerol (CJH5(OH)J)is   still   another    alcohol    which  you  probably  know  better  under  the  name  of  glycerin.  Glycerol  may  be  considered  a  product  of  propane  (CjH6)  in  which  not  one but  three  H  atoms  have  been  replaced  by  OH. 

Related Products: 

Share this post

Leave a comment

Filtered HTML

  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <blockquote> <code> <ul> <ol> <li> <dl> <dt> <dd>
  • Lines and paragraphs break automatically.

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Categories