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thumb|right|200px|Ball-and-stick model of the carbonate ion, CO32− In chemistry, a carbonate is a salt or ester of carbonic acid.

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Blogs for Carbonate

Calcium Carbonate — Blogs, Pictures, and more on WordPress

Featured Blog. Calcium carbonate build up that was removerd from a 20" line. ... Calcium carbonate for protease inhibitor-related diarrhea ...en.wordpress.com/tag/calcium-carbonate/

Carbonated fruit the iSi way " blog.khymos.org

Tags: bubbles, carbon dioxide, carbonated fruit, carbonation, carbonic acid, CO2, ... my favorite thing to carbonate has been gelle... Quoting from the CE&N blog: ...blog.khymos.org/2007/04/09/carbonated-fruit-the-isi-way/

Calcium Carbonate | KC's Technology Blog

... Arbor, Array, Bearing, Calcium Carbonate, Carbon Dioxide, Concrete Production, ... Copyright © 2008 KC's Technology Blog. All rights reserved. ...ringtone-3g.com/blog/tag/calcium-carbonate/

Carbonated strawberries " blog.khymos.org

blog.khymos.org " Blog Archive " Carbonated fruit the iSi way Says: April 9th, 2007 at 1:15 am ... http://blog.khymos.org/2007/04/09/carbonated-fruit-the-isi-way ...blog.khymos.org/2006/10/22/carbonated-strawberries/

The Lost Geologist: Geoblog: Carbonate Sedimentology

The Carbonate Sedimentology blog was born April 18th and I am keen on seeing ... Ron Schott's Geology Home Companion Blog. Sabine's Garden. Sauropod Vertebra PotW ...lostgeologist.blogspot.com/2009/05/geoblog-carbonate-sedimen...

Wikipedia About Carbonate

thumb|right|200px|Ball-and-stick model of the carbonate ion, CO32− In chemistry, a carbonate is a salt or ester of carbonic acid.

Applications

To test for the presence of the carbonate anion in a salt, the addition of dilute mineral acid (e.g. hydrochloric acid) will yield carbon dioxide gas.

Carbonate-containing salts are industrially and mineralogically ubiquitous. The term "carbonate" is also commonly used to refer to one of these salts or carbonate minerals. Most common is calcite, or calcium carbonate, CaCO3, the chief constituent of limestone. The process of removing carbon dioxide from these salts by heating is called calcination.

The term is also used as a verb, to describe the process of raising carbonate and bicarbonate concentrations in soda, see also carbonated water, either by the introduction under pressure of carbon dioxide gas into the bottle, or by dissolving carbonate or bicarbonate salts into the water.

Structure and bonding

The carbonate ion is a polyatomic anion with the empirical formula CO32− and a molecular mass of 60.01 daltons; it consists of one central carbon atom surrounded by three identical oxygen atoms in a trigonal planar arrangement, and has D3h molecular symmetry. The carbonate ion carries a negative two formal charge and is the conjugate base of the hydrogen carbonate ion, HCO3, which is the conjugate base of H2CO3, carbonic acid.

The structure and bonding of the carbonate ion cannot be properly represented by its Lewis structure, which depicts CO32− with two long single bonds and one short double bond:

Simple, localised Lewis structure of the carbonate ion

Like the isoelectronic nitrate ion, resonance structures can be used to depict the carbonate ion:

Resonance structures of the carbonate ion

In reality, CO32− has three equally long C-O bonds:

Delocalisation and partial charges on the carbonate ion Space-filling model of the carbonate ion

Chemical properties

A carbonate salt forms when a positively charged ion attaches to the negatively charged oxygen atoms of the ion, forming an ionic compound:

2 M+ + CO32− → M2CO3
M2+ + CO32− → MCO3
2 M3+ + 3 CO32− → M2(CO3)3

Most carbonate salts are insoluble in water at standard temperature and pressure, with solubility constants of less than 1×10−8. Exceptions include sodium, potassium and ammonium carbonates.

In aqueous solution, carbonate, bicarbonate, carbon dioxide, and carbonic acid exist together in a dynamic equilibrium. In strongly basic conditions, the carbonate ion predominates, while in weakly basic conditions, the bicarbonate ion is prevalent. In more acid conditions, aqueous carbon dioxide, CO2(aq), is the main form, which, with water, H2O, is in equilibrium with carbonic acid - the equilibrium lies strongly towards carbon dioxide. Thus sodium carbonate is basic, sodium bicarbonate is weakly basic, while carbon dioxide itself is a weak acid.

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News about Carbonate

Worm Bin Composting for a Container Garden

BellaOnlineWorm bin composting is the perfect solution if you have no space for a composter or compost pile. All you need is some closet space and your kitchen food scraps to get high quality worm castings for your garden. Here are simple instructions to get you started, good for any type of worm bin.http://www.bellaonline.com/articles/art61880.asp

Go Green This Spring Cleaning Season

Carteret County News-Times(ARA) - Is your spring cleaning really as clean as you think it is? Spring cleaning is supposed to be a ritual of purging the accumulated dirt, germs and odor from a winter-weary home to create a clean and healthy living space.http://www.carteretnewstimes.com/articles/2009/05/09/ara/hom...

ShengdaTech, Inc. Schedules Conference Call to Discuss 2009 First Quarter Results

PR Newswire via Yahoo! FinanceShengdaTech, Inc. , a leading manufacturer of nano precipitated calcium carbonate , today announced it will host a conference call at 9:00 a.m. EDT on Tuesday, May 12, 2009, to discuss the 2009 first quarter financial results.http://biz.yahoo.com/prnews/090507/cnth021.html?.v=63

Filling The Gap In The Fossil Record

Science DailyThe Neoproterozoic interval of "hidden" evolution refers to a gap of unknown duration between the time when animals first evolved (uncertain) and the oldest known fossil or geochemical evidence of animals (latest Neoproterozoic, about 600-650 million years ago).http://www.sciencedaily.com/releases/2009/05/090504151505.ht...

Santa Fe Metals Corp. Announces Completion of Private Placement

MarketwireVANCOUVER, BRITISH COLUMBIA--(Marketwire - May 8, 2009) - Santa Fe Metals Corp. (TSX VENTURE:SFM) - The Company is pleased to announce that it has completed the non-brokered private placement referred to in its April 22, 2009 news release. The offering was oversubscribed, from the originally announced 10 million shares to 10,470,000 shares at $0.05 per share for gross proceeds of $523,500. ...http://www.marketwire.com/mw/release.do?id=986976&sourceType...

News about Carbonate

Prehistoric cave paintings took up to 20,000 years to complete

Daily TelegraphAs water seeps through a cave, it carries extremely low levels of dissolved radioactive uranium along with the mineral calcium carbonate. Over time small amounts of calcium carbonate are deposited to form hard layer over the paintings and this layer ... http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2008/...

Probe fails to find cause of mass seagull deaths

News.com.auHundreds of children and adults were later found to have potentially harmful blood lead levels caused by lead carbonate, which was being exported through the Esperance port, being blown around the town. Faced with a lack of answers from the ... http://www.news.com.au/perthnow/story/0,21598,24469443-2761,...

Weather Eye: noisy oceans threaten life under water

Times Online ... create an underwater din that will make life much more difficult for whales and fish that live on reefs that also use sound. The increasingly acid oceans are also hurting sea creatures such as diatoms and corals. Their shells are made of carbonate ... http://www.timesonline.co.uk/tol/news/weather/article4887375...

Snow Falls on Mars

Astrobiology MagazineThe evidence for calcium carbonate in soil samples from trenches dug by the Phoenix robotic arm comes from two laboratory instruments called the Thermal and Evolved Gas Analyzer, or TEGA, and the wet chemistry laboratory of the Microscopy ... http://www.astrobio.net/news/article2890.html

Tri-Valley Shareholders Support Management and Project Plans to ...

ForbesJames Bush, SRC president, noted the preparation work on the Alaska gold and calcium carbonate properties. The operating system for the latter at the Admiral Calder Quarry was repaired and test run this past summer in preparation for a pilot ... http://www.forbes.com/businesswire/feeds/businesswire/2008/1...

Search results for Carbonate

carbonate definition of carbonate in the Free Online Encyclopedia.

carbonate (kär`bənāt', –nət), chemical compound containing the carbonate radical radical, in chemistry, group of atoms that are joined together in some particular spatial ... http://encyclopedia2.thefreedictionary.com/carbonate

carbonate - Hutchinson encyclopedia article about carbonate

carbonate. Ion formed when carbon dioxide dissolves in water; any salt formed by this ion and another chemical element, usually a metal. Carbon dioxide (CO 2) dissolves sparingly ... http://encyclopedia.farlex.com/carbonate

Carbonated Mars

Here on Earth the only way to make carbonate rocks is with the aid of liquid water. Finding such rocks on Mars might prove, once and for all, that the barren Red Planet ... http://science.nasa.gov/headlines/y2001/ast04feb_1.htm

carbonate creative

Full-service creative agency located in North Aurora, Illinois, offering web, print, copywriting and advertising services.http://www.carbonatecreative.com/

Carbonate (Copper Mountain,CO)

Ski Copper Mountain - Just 20 miles from Vail, Breckenridge, Keystone. Coppper Mountain Properties for sale and Lodging Rentals.http://www.carbonate-real-estate.com/
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Carbonation: The Cheap And Easy Way

Carbonation: The Cheap And Easy WayHow to carbonate a beverage using materials found around the house. Go to: http://www.instructables.com/id/EM8H2WFF5LD3RNA/ to see how to build it! Ranked 3.35 / 5 | 424 views | 3...Flash - Video

Sea spiders spotted in icy depths

Sea spiders spotted in icy depthsSea spiders the size of dinner plates and jelly fish with 18ft tentacles have been caught on camera for the first time.Scientists from Australia, France and Japan have been...Flash - Video

HHO Production With Potassium Carbo...

HHO Production With Potassium CarbonateTesting out a new electrolyte with this series cell. The K2CO3 might not be as harsh on different types of materials used for a HHO cell.Flash - Video

Os-Cal 500 + Extra D - Calcium Carb...

Os-Cal 500 + Extra D - Calcium Carbonate with Vitamin D - 250 CapletsWhen you need vitamin D and Calcium, choose Os Cal.Flash - Video

DJ Furax - Carbonate (Arno Mix)

DJ Furax - Carbonate (Arno Mix)DJ Furax - Carbonate (Arno Mix) www.freewebs.com/noerrroronthepageFlash - Video

Answers for Carbonate

ashley21How much calcium carbonate is there in limestone ?ashley21While the first answer is essentially correct, limestone IS calcium carbonate, it is NOT pure calcium carbonate. most limestones contain other materials such as magnesium carbonate and silica. You c...hang881What happens if calcium carbonate and hydrolic acid is put together?hang881Assuming that you mean hydrochloric acid: hydrochloric acid + calcium carbonate → calcium chloride + carbon dioxide + water 2HCl + CaCO3 → CaCl2 + CO2 + H2O Effervescence (bubbles) of carbo...Jamie TWhere do we get the calcium and the carbonate for the growing of our bones and teeth? How do they grow?Jamie TTo the best of my knowledge, you have asked one incredibly complex question, and one reasonably simple question. The simple question first: calcium exists in all body fluids and almost all tissues ...Spartan102How many grams of silver carbonate are present after the reaction is complete?Spartan102A limiting reactant problem. Convert each of the masses of the reactants to g of silver carbonate. The smaller result tells you which reactant runs out first. That is the answer. I got 3.71g.cheerleading3334An acidic soluction reacts with magnesium carbonate to produce a gas. What is the formula for the gas?cheerleading3334An acidic solution reacts with magnesium carbonate to produce a gas. What is the formula for the gas? Carbon dioxide, CO2. Why does acid rain dissolve statues made of marble (CaCO3)? Whats the f...
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