Portal:Chemistry

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The Chemistry Portal

Shortcut:
P:CHEM
Colourful solutions in test-tubes.
Welcome to the chemistry portal. Chemistry, from Greek language χυμεία meaning "study of liquids", is a branch of science. Modern chemistry focuses on the study of elements of the world and the bonds between elements. Chemistry also deals with composition, structure, and properties of substances and the transformations that they undergo. In the study of matter, chemistry also investigates its interactions with energy and itself. Because of the diversity of matter, which is mostly in the form of compounds, chemists often study how atoms of different chemical elements interact to form molecules, and how molecules interact with each other.


Portal navigation
Featured article - Selected picture - News - Selected biography - History and Philosophy - Techniques - Equipment - Chemistry in society - Chemistry in industry - Periodic Table - Resources - WikiProjects - Things you can do - Collaboration of the month - Related portals - Associated Wikimedia


  

Featured article

Detail of acetic acid crystals
Acetic acid (CH3COOH), also known as ethanoic acid, is an organic chemical compound best recognized for giving vinegar its sour taste and pungent smell. Pure water-free acetic acid is a colourless hygroscopic liquid (that is, it readily absorbs water) that freezes below 16.7 °C (62 °F) to a colourless crystalline solid. Acetic acid is corrosive, and its vapour is irritating to eyes and nose, although it is a weak acid based on its ability to dissociate in aqueous solutions.

Acetic acid is one of the simplest carboxylic acids. It is an important chemical reagent and industrial chemical that is used in the production of polyethylene terephthalate mainly in soft drink bottles; cellulose acetate, mainly for photographic film; and polyvinyl acetate for wood glue, as well as many synthetic fibres and fabrics. In households diluted acetic acid is often used in descaling agents. In the food industry acetic acid is used under the food additive code E260 as an acidity regulator.

The global demand for acetic acid is around 6.5 million tonnes per year (Mt/a), of which approximately 1.5 Mt/a is met by recycling; the remainder is manufactured from petrochemical feedstocks or from biological sources.

  

Selected picture

Types of carbon nanotubes
Credit: User:Mstroeck

Carbon nanotubes (CNTs) are an allotrope of carbon. They take the form of cylindrical carbon molecules and have novel properties that make them potentially useful in a wide variety of applications in nanotechnology, electronics, optics and other fields of materials science. They exhibit extraordinary strength and unique electrical properties, and are efficient conductors of heat.

  

Categories

  

History and Philosophy of Chemistry

Antoine Lavoisier

Many chemists have an interest in the history of chemistry. Those with philosophical interests will be interested that the philosophy of chemistry has quite recently developed along a path somewhat different from the general philosophy of science.

Other articles that might interest you are:

There is a Wikipedia Project on the History of Science and portals for the scientific method and philosophy of science.

  

Chemistry Resources

Wikipedia:WikiProject Chemicals/Data is a collection of links and references that are useful for chemistry-related works. This includes free online chemical databases, publications, patents, computer programs, and various tools.

Science is Fun University of Wisconsin-Madison Chemistry Professor Bassam Z. Shakhashiri, shares the fun of science.

megaConverter The Web's best place to figure out what equals what.

General Chemistry Online Clear text and comprehensive coverage of general chemistry topics by Fred Senese, Dept. of Chemistry Frostburg State University

General Chemistry Demonstration at Purdue Video clips (and descriptions) of lecture demonstrations.

Intota Chemistry Experts A large online listing of real-world chemistry expert biographies provides examples of the many areas of expertise and careers in chemistry.

Chemistry Webercises Directory A large listing of chemistry resources maintained by Steven Murov, Emeritus Chemistry Professor Modesto Junior College.

MathMol MathMol (Mathematics and Molecules) is a good starting point for those interested in the field of molecular modeling.

Chemistry Educational Resources and Essential References from Wiley, the world's largest chemistry publisher

ABC Chemistry A directory of free full-text journals in chemistry, biochemistry and related subjects.

  

In the news

Rohm and Haas Headquarters in 2007.
Rohm and Haas Headquarters in 2007.
  • 7-10 US chemical giant Dow Chemical has announced that it is to buy Philadelphia-based rival Rohm and Haas. Dow is paying $78 per share, a 74 percent premium, which makes the agreement worth around $15.3 billion. The change will expand Dow's presence in the specialty chemical market. Dow plans to set up an advanced materials business unit at the Rohm and Haas headquarters in Philadelphia, and this unit will retain the Rohm and Haas name. Read more...
  • 2-15 Chemists modeling the structure of strongly acidic solutions have found that hydronium ions can associate into unusual ion pairs. Gregory A. Voth and Sergei Izvekov of the University of Utah, in collaboration with Feng Wang of Boston University, were examining the structure of aqueous hydrochloric acid at concentrations of 0.43-0.85 M, and they found that the ions unexpectedly associate into pairs. See doi:10.1021/ja078106i Read more...
  

Selected biography

Marie Curie
Marie Curie (1867-1934) was a Polish physicist and chemist, and a leading figure in the early science of radioactivity. Along with her husband Pierre, she discovered the elements radium and polonium. She received the Nobel Prize in Physics in 1903, along with her husband and Henri Becquerel, thus becoming the first woman to earn a Nobel – 8 years later, she received the Nobel Prize in Chemistry, thus becoming the first person to receive 2 Nobel Prizes, and the first to do so in two different fields. The only other scientist to have achieved this feat is Linus Pauling. Her death was from aplastic anemia, widely believed to be due to her massive exposure to radiation.
  

Techniques used by chemists

  

Equipment used by chemists

  

Chemistry in society

  

Chemistry in industry

  

WikiProjects

  

Periodic Table

  

Things you can do

Here are some things you can do:

  

Collaboration of the Month

The current Chemistry Collaboration of the Month is Catalysis.
Every month a different chemistry-related topic, stub or non-existent article is picked. Please improve the article any way you can.
  

Related portals

  

Associated Wikimedia

Wikipedia content modification information:

  • This page was last modified on 11 October 2008, at 14:28.

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