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Topic: Oxalic acid


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In the News (Fri 27 Nov 09)

  
  Oxalic Acid - LoveToKnow 1911
Oxalic acid is very poisonous, and by reason of its great similarity in appearance to Epsom salts, it has been very frequently mistaken for this substance with, in many cases, fatal results.
Beside the ordinary acid and neutral salts, a series of salts called quadroxalates is known, these being salts containing one molecule of acid salt, in combination with one molecule of acid, one of the most common being "salt of sorrel," KHC 2 0 4.
Ethyl oxalate, (C0.0C2H5)2, prepared by boiling anhydrous oxalic acid with absolute alcohol, is a colourless liquid which boils at 186° C. Methyl oxalate (CO. 00H3)2, which is prepared in a similar manner, is a solid melting at 54° C. It is used in the preparation of pure methyl alcohol.
www.1911encyclopedia.org /Oxalic_Acid   (844 words)

  
 Oxalic Acid   (Site not responding. Last check: 2007-11-01)
Oxalic Acid (also called Ethanedioic Acid) is a colourless, crystalline, toxic organic compound belonging to the family of dicarboxylic acids; melting at 187 C; soluble in water, alcohol, and ether.
Oxalic acid is commercially manufactured by heating sodium formate in the presence of an alkali catalyst to form sodium oxalate, which should be converted to free oxalic acid when treated with sulfuric acid.
Oxalic acid is the only possible compound in which two carboxyl groups are joined directly; for this reason oxalic acid is one of the strongest acids in organic compounds.
www.greatvistachemicals.com /industrial_and_specialty_chemicals/oxalic-acid.html   (547 words)

  
 Oxalic Acid & Oxalates   (Site not responding. Last check: 2007-11-01)
Oxalic acid may combine with calcium, iron, sodium, magnesium, or potassium to form less soluble salts known as oxalates.
Since oxalic acid binds with important nutrients, making them inaccessible to the body, regular consumption of large amounts of foods high in oxalic acid over a period of weeks to months may result in nutrient deficiencies, most notably of calcium.
Oxalic acid is a strong acid, and is irritating to tissue all by itself.
www.cloudnet.com /~djeans/Asides/OxalicAcid.htm   (246 words)

  
 029. Death by Oxalic Acid
The reaction of oxalic acid is strongly acidic, that of zinc sulphate is slightly acidic, and that of magnesium sulphate is neutral.
Oxalic acid, as I have already told you, is used in households as a bleach to remove stains or to clean metals, notably brass or leather, and also in calico-printing.
Oxalic acid readily corrodes the mucous membrane of the digestive tract.
members.tripod.com /~Prof_Anil_Aggrawal/poiso029.html   (2242 words)

  
 Oxalic Acid to make CO2?
Obviously the oxygen liberated at the anode as the water is electrolysed into hydrogen and oxygen combines with oxalic acid converting it to carbon dioxide and water.
Potassium permanganate causes oxalic acid to break down into carbon dioxide and water but that is no good.
As mentioned by someone else, oxalic acid is very toxic, and not to be handled carelessly.
www.thekrib.com /Plants/CO2/oxalic-acid.html   (1094 words)

  
 Oxalic acid, iron and calcium in foods   (Site not responding. Last check: 2007-11-01)
Oxalic acid found in spinach, chard and beet greens binds up the calcium present in these foods, making it unavailable for the body to use.
Oxalic Acids and iron Heme iron is part of the hemoglobin and myoglobin molecules in animal tissues (blood and muscle).
Oxalic Acids inhibits the absorption of nonheme iron.
dataguru.org /misc/aquarium/FoodOxalicAcid.html   (262 words)

  
 Beekeeping - Article - Spring Treatment with Oxalic Acid
Oral ingestion of oxalic acid may be deadly, by dermal contact it may cause damage to the skin and tissue and by inhalation it may cause damage to the mucous membranes.
At the first honey harvest in June the mean natural concentration of oxalic acid (±S.E.M.) was measured to be 37.78±5.55 ppm in the sprayed group, 41.56±8.54 in the trickled group and 57.70±7.95 ppm in the control group.
However, before the use of oxalic acid as spring treatments is recommended in Denmark it is necessary to put more effort into efficacy tests with a large number of control colonies in field trials.
www.beekeeping.com /articles/us/spring_treatment_oxalic_acid.htm   (3759 words)

  
 Rhubarb Poison Information
Oxalic acid, for example, is excreted in the urine, and its crystals are commonly found in microscopic urinalysis.
Vitamin C is metabolized to oxalic acid; it contributes to over-saturation of the urine with crystals and possibly to stone formation.
Oxalic acid is a strong acid of the composition HOOC-COOH, which crystallizes as the ortho-acid (HO)3 CC (OH)3.
www.rhubarbinfo.com /rhubarb-poison.html   (806 words)

  
 Chemical Safety Data: Oxalic acid dihydrate
Oxalic acid can cause burns to the skin, although, as a weak acid the burns are likely to be less serious than those caused by strong solutions of mineral acids.
Oxalic acid may be harmful if you swallow or inhale it.
Oxalic acid is probably harmful if swallowed, so if the amount swallowed is more than a trivial quantity, seek medical help.
ptcl.chem.ox.ac.uk /~hmc/hsci/chemicals/oxalic_acid.html   (194 words)

  
 OXALIC ACID, 112 C203 - Online Information article about OXALIC ACID, 112 C203
caustic alkalis, this latter method being employed for the manufacture of oxalic acid.
lime, the lime salt separated, and decomposed by means of sulphuric acid.
Oximide,[CO]2NH, produced by the action of a mixture of phosphorus pentachloride and oxychloride on oxamic acid (H. Ost and A. Mente, Ber., 1886, 19, p.
encyclopedia.jrank.org /ORC_PAI/OXALIC_ACID_112_C203.html   (1199 words)

  
 oxalic acid - Hutchinson encyclopedia article about oxalic acid
Oxalic acid is found in rhubarb leaves, and its salts (oxalates) occur in wood sorrel (genus Oxalis, family Oxalidaceae) and other plants.
It also occurs naturally in human body cells.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
encyclopedia.farlex.com /oxalic+acid   (124 words)

  
 General Chemistry Online: FAQ: Acids and bases: Can I determine the pK_a_'s for oxalic acid from a titration curve?
I am working on an experiment which will determine the concentration of oxalic acid and it's dissociation constants by performing a titration with the aid of a pH meter.
Oxalic acid is a diprotic acid (which means it can release 2 hydrogen ions per molecule).
But for oxalic acid, the two dissociation constants are not far apart.
antoine.frostburg.edu /chem/senese/101/acidbase/faq/oxalic-acid-titration.shtml   (218 words)

  
 Oxalic Acid, wood bleach,marble polish,rust stain remover
After scrubbing with Oxygen bleach and TSP (trisodium phosphate) use Oxalic acid to lighten the wood prior to sealing or staining.
Warning: Oxalic Acid is still and acid and should be treated with respect, do not be lulled into complacency.
In its purified form, oxalic acid is a highly corrosive and toxic substance.
alsnetbiz.com /homeimprovement/oxalic_acid.html   (396 words)

  
 Amazon.com: oxalic   (Site not responding. Last check: 2007-11-01)
Oxalic Acid in Biology and Medicine by A Hodgkinson (Textbook Binding - Jan 1977)
Calcium and oxalic acid kinetics differ in rats: An article from: The Journal of Nutrition by Denise A Hanes, Connie M Weaver, and Meryl E Wastney (Jan 31, 1999)
The Chemical kinetics of the decomposition of oxalic acid in concentrated sulphuric acid by D. M Lichty (Unknown Binding - Jan 1, 1907)
www.amazon.com /s?ie=UTF8&keywords=oxalic&tag=ecomplex&index=blended&link_code=qs&page=1   (365 words)

  
 Oxalic Acid Clearing
I cleared oxalic acid on the machine Wednesday.
Foods that contain significant quantities of oxalic acid include cocoa, chocolate, most nuts, most berries, rhubarb, beans, and beets, among many others.
In addition to its natural occurrence in plants, oxalic acid may also be found in household chemical products such as Bar Keeper's Friend, some bleaches, and rustproofing treatments.
www.healthdiaries.com /blogs/parentsfault/archives/2005/04/oxalic_acid_clearing.html   (601 words)

  
 Vegetable Oxalic Acid Content
Notice the above vegetables that are highest in oxalic acid are those all the experts recommend you should have in your diet.
To make a point, MAD COW diseases is a virus and the reason it is striking in Europe is the diet the cattle are fed. They are not receiving enough of the forage and grains which contain oxalic acid due to the large volume of animal by products being used.
The scientist may discover that oxalic acid is viricidal.
www.coljoe.com /vegetable_oxalic_acid.htm   (217 words)

  
 Oxalic Acid - Products for Oxalic Acid - Manufacturers,Exporters,Suppliers,Traders,Companies,Factories   (Site not responding. Last check: 2007-11-01)
Oxalic acid forms fine colorless crystals, readily soluble in wat
Oxalic acid 99.6% Fob china main port usd400/mt Packed in 25kg
We are the largest producer of Oxalic Acid in China, with ISO9001
www.alibaba.com /productsearch/Oxalic_Acid.html   (484 words)

  
 OXALIC ACID
When ingested, oxalic acid removes calcium from the blood.
Oxalic Acid is a combustible solid below 101C (215F)
Foam or water on molten oxalic acid may cause frothing.
www.jtbaker.com /msds/englishhtml/o6044.htm   (1138 words)

  
 Infoplease Search: caprylic acid
(Encyclopedia) pyroligneous acid, a dark liquid that is essentially a mixture of acetic acid and methanol (wood...
(Encyclopedia) fatty acid, any of the organic carboxylic acids present in fats and oils as esters of glycerol.
(Encyclopedia) aspartic acid, organic compound, one of the 20 amino acids commonly found in animal proteins.
www.infoplease.com /search?fr=iptn&query=Caprylic+acid&in=all   (185 words)

  
 Oxalic Acid, China Oxalic Acid products- China Oxalic Acid Manufacturer, supplier
As the largest scale Oxalic Acid Producer in Synthetic Method in the world, its annual production capacity has exceeded 60,000 MTS in the end of 1999 year, and will reach 80,000 MT by the end of 2000.
Our Oxalic Acid was awarded the high quality product by Chinese Chemical Industry Ministry and got free inspection from the CCIB for its high and steady quality.
Your use of this website is subject to, and constitutes acknowledgement and acceptance of our Terms and Conditions.
www.made-in-china.com /china-products/productviewymnEURxHWJpB/Oxalic-Acid.html   (250 words)

  
 Oxalic Acid - Buying Leads for Oxalic Acid - Buyers, Importers, Wholesalers, Distributors
Oxalic Acid - Buying Leads for Oxalic Acid - Buyers, Importers, Wholesalers, Distributors
Start here to find buyers, importers and wholesalers of Oxalic Acid around the world.
We are a trading company engaged in chemcials,steels,hardwares.
importer.alibaba.com /buyeroffers/Oxalic_Acid.html   (383 words)

  
 oxalic on deviantART
No they didnt mention attendance at all, and yeah, the guy basically told me I was accepted into LUDO.
CCHND interview went alright, I mean, they didnt mention doing ADS again at all, and they seemed to like my stuff.
Then i Saw there was a way to Hell Even from the Gates of Heaven.
oxalic.deviantart.com   (707 words)

  
 herbal tea oxalic acid   (Site not responding. Last check: 2007-11-01)
Find herbal tea oxalic acid and more at Lycos Search.
The best of the best sites for herbal tea oxalic acid on the web.
Antioxidants may prevent cell damage that could lead to cancer, heart disease and aging.
www.tea-for-me.com /herbal-tea-oxalic-acid.php   (542 words)

  
 Safety (MSDS) data for oxalic acid dihydrate   (Site not responding. Last check: 2007-11-01)
Click here for data on oxalic acid in student-friendly format, from the HSci project
Incompatible with bases, acid chlorides, steel, silver, silver compounds, moisture.
Harmful if swallowed, inhaled or absorbed through skin.
ptcl.chem.ox.ac.uk /MSDS/OX/oxalic_acid_dihydrate.html   (133 words)

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