Our navigation bar is loading . . .

 


 

Jesus Christ Saves Ministries

Helping San Diego, California and beyond since 1997.  




 

JCSM's Top 1000 Christian Sites - Free Traffic Sharing Service!


Do you need volunteer, community service, work, military or court hours?

Click here and add this page to your favorites!

Return to the JCSM Study Center!

Encyclopedia Britannica



PROPIOLIC ACID

This article appears in Volume V22, Page 449 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: PRE-PYR
PROPIOLIC ACID , CH:CCO2H, acetylene mono-carboxylic acid, an unsaturated organic acid prepared by boiling acetylene dicarboxylic acid (obtained by the action of alcoholic potash on dibromsuccinic acid) or its acid potassium
salt
  with water (E. v. Bandrowski, Ber., 188o, 13, p. 2340). It forms silky crystals which melt at 6 C., and
boil
  at about 144 C. with decomposition. It is soluble in water and possesses an odour resembling that of acetic acid. Exposure to sunlight converts it into trimesic acid (
benzene
 -1.3.5-tricarboxylic acid). Bromine converts it into dibromacrylic acid, and it gives with hydrochloric acid 0-chloracrylic acid. It forms a characteristic explosive silver
salt
  on the addition of ammoniacal silver nitrate to its aqueous solution, and an amorphous precipitate which explodes on warming with ammoniacal cuprous chloride. Its
ethyl
  ester condenses with hydrazine to form pyrazolone (R: v. Rothenburg, Ber., 1893, 26, p. 1722). Phenylpropiolic acid, C6H5C:CCO2H, formed by the action of alcoholic potash on cinnamic acid dibromide, C6H5CHBrCHBrCO2H, crystallizes in
long
  needles or prisms which melt at 1361370 C. When heated with water to I2o C. it yields phenyl acetylene C6H5C;CH. Chromic acid oxidizes it to benzoic acid;
zinc
  and acetic acid reduce it to cinnamic acid, C6H5CH:CHCO2H, whilst sodium
amalgam
  reduces it to hydrocinnamic acid, C6H5CH2CO2H. Ortho-nitrophenylpropiolic acid, NO2C6H4C: CCO2H, prepared by the action of alcoholic potash on ortho-nitrocinnamic acid dibromide (A. v. Baeyer, Ber., 188o, 13, p. 2258), crystallizes in needles which decompose when heated to 155156 C. It is readily converted into indigo (q.v.).


End of Article: PROPIOLIC ACID


If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/PRE_PYR/PROPIOLIC_ACID.html">
PROPIOLIC ACID
</a>
(Previous)
PROPHET (Irpo4i ri7s) 		(Next)
PROPYL ALCOHOLS (C3H7OH)

 


 
 


JCSM was founded in 1997 and exists to help the community and bring people into a life-changing and productive relationship with Jesus Christ. JCSM offers over 200,000 free web pages, including its weekly inspirational emails that were sent continuously for over a decade.

Jesus Christ Saves Ministries
P.O. Box 9297
San Diego, CA  92169
1-888-887-0417 or Email

JCSM is a 501(c)(3), non-profit organization. Copyright © 1997-2012.
 

 

Sponsored Advertisements

Online First Aid and CPR Certification  .  DHA Solutions  .  PB Happy Hour Specials  .  Improvising Made Easy For Guitar and Bass  .  The Skeptic's Annotated Bible: Corrected and Explained  .  Home Equity Loans  .  First Aid and CPR Online  .  San Diego Music Lessons  .  10,000 Wise Quotes and Spiritual Sayings  .  Blow Up Your Site (For Free!)  .  San Diego DUI Lawyers  .  Jason Gastrich  .  Jordan Faith Gastrich  .  Divorce Secrets Revealed  .  Post Your Ad Link Free  .  San Diego Soccer Training  .  JCSM  .  Download Sermons  .  Custom Religious Banners, Build A Sign  .  Christian Singles Dating  .  Christian T-Shirts  .  Healing Christian Prayer  .  Bumper Authority  .  Personalized Blogs and Email  .  San Diego Haircuts  .  The Do the Math Diet  .  Stop Twitter Spam  .  Christian Conservative Work at Home Network  .  The Website of the Lord