Seed Brazil X-ray Scattering r134a Test Tube brazillion Thoughts Universe Magic Bullet Big Bang Blog Blue Box Laboratory Notebook Chi grandmother non powder Critical Mass N-Dimensional Viva Chemistry Physical Universe Earth Caapora Science and Ideas Bone Collectors curupira Discussing Ecology Ecodevelopment Geófagos Trail Carbon Xis-Xis Life Science to Bessa Chronicle of the Flies Haeckeliano iBiomovies r134a Marco Evolutionary r134a Powder Culture Medium Imburana wood Red Queen mRNA SynbioBrasil You who are Biologist ... Humanity friend of Montaigne Hat, Whip and Carbon-14 to the Natural Science Cognando r134a Ecce Medicus Effect The adverse Divan Einstein Psychological socially All Top 42 100nexos r134a Scientist S / A Dragon Garage Hypercubic idiotic ideas Nightfall in Magrathea
Pyridine is simply a benzene with a nitrogen replacing one of the CHs. This simple change has a myriad of effects. The addition r134a of an electronegative nitrogen makes a good basis pyridine (is commonly used in reactions that generate r134a protons to remove the acid in the course r134a of the process). The same change to become soluble in water (benzene is soluble only 0.2% (approx.)). More importantly, however, is that the stink pyridine. Even at high dilution. There is a common chemical penetrating odor, has a biological wealth that nitrogen r134a heterocícliclos seem comply with mastery (see for example the indole, with its fecal intensity). Benzene has a pleasant smell as gasoline (although both are toxic as well), but the pyridine smell like a non-ventilated room full of patients dying and terminals. http://scienceblogs.com/moleculeoftheday/2007/09/pyridine_smellier_benzene.php Original (Inglês) content from Molecule of the Day (http://scienceblogs.com/moleculeoftheday). Content translated with permission, but English text not reviewed by the original author. Please distribute the not beyond this site without permission from author and translator Both.
The text is a translation of a blog in English. I try not to change the original text information. I agree with you that both are toxic. But the issue of erectile dysfunction r134a is also the subject of debate in the original text. Some say it is legend and others say the effect is reported in some sources. Another part prefers not test. I have looked on this topic and could not find a good source on the veracity (or not) of pyridine problems.
Dear Luis, Perhaps it could be added that both benzene and pyridine r134a are extremely carcinogenic. In addition pyridine is toxic and causes irreversible erectile r134a dysfunction (broxa irreversibly). That is, it is better not be experiencing the smell or the benzene and pyridine not. hugs, Roberto
Previous Next
Categories r134a Art (47) Astronomy (27) Biology (29) Skepticism (8) Documentary (34) Education (26) Physics (58) General (56) History (44) Books (18) Mathematics (23) Neuroscience (9) Chemistry (63) Technology (39) Variety (34) Videos (86)
Archives Select Month June 2013 (2) March 2013 (4) February 2013 (2) January 2013 (9) December 2012 (16) November 2012 (8) September 2012 (5) August 2012 (7) July 2012 (9) in June 2012 (31) May 2012 (10) April 2012 (12) February 2012 (15) January r134a 2012 (8) December 2011 (2) November 2011 (1) October 2011 (11) September 2011 (8) August 2011 (7) April 2011 (2) May 2011 (2) April 2011 (13) March 2011 (5) February 2011 (4) January 2011 (2) November 2010 (6) October 2010 (2) September 2010 (1) August 2010 (12) July 2010 (5) June 2010 (12) May 2010 (4) April 2010 (2) June 2010 (4) February r134a 2010 (4) January 2010 (10) December 2009 (16) November 2009 (12) October r134a 2009 (12) September 2009 (2) August 2009 (7) July 2009 (37) June 2009 (16) May 2009 (6) June 2009 (20) February 2009 (3) January r134a 2009 (5) December 2008 (6) November 2008 (8) October 2008 (7) September 2008 (4) September 2008 (6) July 2008 (1)
Pages of Seed Media Group Seed Media Group | Seed | SEEDMAGAZINE.COM
No comments:
Post a Comment