10. 
    pyroligneous acid
    [n] - a red-brown liquid formed in distillation of wood which contains acetic acid, methanol, acetone, wood oils, and tars
    Found op http://www.webdictionary.co.uk/definition.php?query=pyroligneous%20acid
    
    
11. 
    pyroligneous acid
    wood vinegar noun a red-brown liquid formed in distillation of wood which contains acetic acid, methanol, acetone, wood oils, and tars
    Found op http://wordnetweb.princeton.edu/perl/webwn?s=pyroligneous%20acid
    
    
12. 
    pyroligneous acid
    (from the article `wood tar`) Hardwood tars are obtained from pyroligneous acid, either as a deposit from the acid or as a residue from the distillation of the acid. Crude ...
    Found op http://www.britannica.com/eb/a-z/p/137
    
    
13. 
    Pyroligneous acid
    Pyroligneous acid, also called wood vinegar, is a dark liquid produced through the natural act of carbonization, which occurs when wood is heated in an airless container during charcoal production. ==Chemical components== The principal components of pyroligneous acid are acetic acid and methanol. I...
    Found op http://en.wikipedia.org/wiki/Pyroligneous_acid
    
    
14. 
    pyroligneous acid
    pyroligneous acid (pī"rulig'nēus) , a dark liquid that is essentially a mixture of acetic acid and methanol (wood alcohol) and is obtained in the destructive distillation of wood. It once served as a commercial source of acetic acid.
    Found op http://www.infoplease.com/ce6/sci/A0840647.html
    
    
15. 
    Pyroligneous Acid
    Pyroligneous Acid is an impure acetic acid obtained by the distillation of wood.
    Found op http://www.probertencyclopaedia.com/browse/GP.HTM
    
    
16. 
    Pyrophosphoric acid
    Pyrophosphoric acid, also known under the name diphosphoric acid, is colorless, odorless, hygroscopic and is soluble in water, diethyl ether, and ethyl alcohol. It is produced from phosphoric acid by dehydration. Pyrophosphoric acid slowly hydrolyzes in the presence of water into phosphoric acid. P...
    Found op http://en.wikipedia.org/wiki/Pyrophosphoric_acid
    
    
17. 
    pyrophosphoric acid
    [n] - a solid acid formed by reactions of orthophosphoric acid
    Found op http://www.webdictionary.co.uk/definition.php?query=pyrophosphoric%20acid
    
    
18. 
    pyrophosphoric acid
    H4P2O7;an anhydride of phosphoric acid obtained by heating phosphoric acid to 213°C; it forms pyrophosphates with bases, and its esters are important in energy metabolism and in biosynthesis. ... (05 Mar 2000) ...
    Found op http://www.mondofacto.com/facts/dictionary?pyrophosphoric+acid
    
    
19. 
    pyrophosphoric acid
    noun a solid acid formed by reactions of orthophosphoric acid
    Found op http://wordnetweb.princeton.edu/perl/webwn?s=pyrophosphoric%20acid
    
    
20. 
    pyrophosphoric acid
    (pi″ro-fos-for´ik) a dimer of phosphoric acid, H4P2O7.
    Found op http://www.encyclo.co.uk/local/21001
    
    
21. 
    pyrophosphoric acid
    Type: Term Pronunciation: pī′rō-fos-fōr′ik as′id Definitions: 1. An anhydride of phosphoric acid obtained by heating phosphoric acid to 213°C; it forms pyrophosphates with bases, and its esters are important in energy metabolism and in biosynthesis.
    Found op http://www.medilexicon.com/medicaldictionary.php?t=74534
    
    
22. 
    pyrosulfuric acid
    (from the article `chemical compound`) ...sulfur dioxide reacts with water, and sulfuric acid, a strong acid, is formed in the reaction of sulfur trioxide with water. Sulfur trioxide ...
    Found op http://www.britannica.com/eb/a-z/p/138
    
    

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