organiclabzmm.blogfa.com
آزمایشگاه شیمی آلی - تبلور مجدد (نوبلور سازی) (Recrystallization):
http://organiclabzmm.blogfa.com/post-19.aspx
تبلور مجدد (نوبلور سازی) (Recrystallization):. در واکنشهای آلی محصولات بندرت به صورت خالص به دست می آیند. وقتی ماده به صورت جامد باشد معمولا آنرا در حلالی حل کرده ومجددا به صورت بلور رسوب میدهند. این عمل را تبلور مجدد. انتخاب محیط تبلور کار ساده ای نیست، رفتار حلالیت ترکیب یا باید شناخته شده باشد و یا باید به طریق تجربی مشخص گردد. مثلا وقتی که تبلور پارا دی بروموبنزن. مورد نظر باشد مخلوطی از اتانل. و آب به کار میرود. ترکیب هم در اتانول. سرد و هم در اتانل. داغ محلول است: از اینرو اتانول. اگر محلول رنگین ا...
evans.rc.fas.harvard.edu
The Evans Group Homepage - Publications
http://evans.rc.fas.harvard.edu/cgi-bin/publications.cgi
Professor David A. Evans. Cambridge, MA 02138. E-mail: V. Kattar. Searching Publications by Keyword. Searching Publications by Journal. J Am Chem. Soc. Pure and Appl. Chem. The journal names below are abbreviated; it may therefore be difficult to search for a specific journal. With this in mind, we have assembled a list of journals above. Select, and the search will return all matches. No search terms have been entered. History of the Harvard ChemDraw Project," Evans, David A. Angew Chem. Int. Ed. Effect...
nepachemistry.com
NepaChem: Chem Departments in USA
http://www.nepachemistry.com/p/chemistry-departments-in-us.html
Chem Departments in USA. Chem Departments in USA. Bowling Green State University. California Institute of Technology. The George Washington University. New Mexico State University. North Carolina State University. The Ohio State University. State University of New York at Binghamton. Texas A and M UNiversity. The University of Alaska Fairbanks. The University of Alabama. The University of Arizona. University of Colorado at Boulder. University of Illinois, Urbana-Champaign. The University of Iowa. Scanned...
melting-rahmani.blogfa.com
Organic Chemistry I - DISTILATION
http://melting-rahmani.blogfa.com/cat-6.aspx
پروژه درس آزمابشگاه شیمی آلی - دانشگاه بین المللی امام خمینی (ره)- گروه یک. HISTORY OF LAVENDER STEAM DISTILLATION. An early Greek, Dioscorides said:. Oil of lavender, when made by passing flowers through a glass alembic [i.e. when distilled], surpasses all other perfumes. Although distilled essential oils did not appear much before the 16th century, one reference was recorded by celebrated Welsh physicians of Myddfai in the Carmarthen in the 13th century:. The 1526 publication, Grete Herball. Vacuum Dis...
gmwgroup.harvard.edu
Whitesides Research Group
http://gmwgroup.harvard.edu//people/photos
Search Whitesides Group Members. Adaptive Materials, Composites and Polymers. Density as a Tool fo Chemistry and Biology. Low-Cost Diagnostics and Tools for Global Health. Paper as a Material. Soft Lithography and Unconventional Nanofabrication. The Chemical Origin of Life. Whiteisdes Group Photo Gallery. Dreyfus Award Group Party (10-2-2009). Farewell Party for Adam Siegel (10-1-2008). Farewell Party for Amy Wong (5-1-2008). Farewell Party for Andres Martinez (5-18-2009). GMW Group Portrait (7-19-2007).
gmwgroup.harvard.edu
Whitesides Research Group
http://gmwgroup.harvard.edu//index.php
Search Whitesides Group Members. Adaptive Materials, Composites and Polymers. Density as a Tool fo Chemistry and Biology. Low-Cost Diagnostics and Tools for Global Health. Paper as a Material. Soft Lithography and Unconventional Nanofabrication. The Chemical Origin of Life. Soft-bodied robots: Actuators inspired by muscle. Bio-inspired robots: A force for good or evil? CAMTech Announces Innovation Award Winner. Fabrication of Nonperiodic Metasurfaces by Microlens Projection Lithography.
gmwgroup.harvard.edu
Whitesides Research Group
http://gmwgroup.harvard.edu//intra
Search Whitesides Group Members. Adaptive Materials, Composites and Polymers. Density as a Tool fo Chemistry and Biology. Low-Cost Diagnostics and Tools for Global Health. Paper as a Material. Soft Lithography and Unconventional Nanofabrication. The Chemical Origin of Life. Harvard University Department of Chemistry and Chemical Biology. Site Designed and maintained by Richard Kwant 2011 Whitesides Research Group. This site is best viewed with IE8 , Firefox, Chrome, and Safari 5.
gmwgroup.harvard.edu
Whitesides Research Group
http://gmwgroup.harvard.edu//sponsors
Search Whitesides Group Members. Adaptive Materials, Composites and Polymers. Density as a Tool fo Chemistry and Biology. Low-Cost Diagnostics and Tools for Global Health. Paper as a Material. Soft Lithography and Unconventional Nanofabrication. The Chemical Origin of Life. Harvard University Department of Chemistry and Chemical Biology. Site Designed and maintained by Richard Kwant 2011 Whitesides Research Group. This site is best viewed with IE8 , Firefox, Chrome, and Safari 5.