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Topic: Bone ash


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In the News (Fri 17 Feb 12)

  
  Synthetic Bone Ash
Murlin Chemical Synthetic Bone Ash is a synthetic mold release agent for use in casting non-ferrous metals.
While this water is being agitated, the desired amount of synthetic bone ash is added at a uniform rate consistant with complete dispersion of the dry solids.
Slurries of synthetic bone ash are used at densities varying from 8 degrees Be to 24 degrees Be.
www.murlinchemical.com /syn1.html   (945 words)

  
  Bone China
The bone is then treated to remove glue, which is processed and upgraded for use in normal applications where glue is used, and also for the sizing of expensive paper.
The raw bone which is left after the meat and glue have been extracted is then heated to about 1000 C at which temperature any residual organic material is burned off and the structure of the bone is changed to form suitable for the manufacture of bone china.
Prior to use the bone is finely ground with water before inclusion in the bone china body and it is calcined bone which gives traditional English bone china its translucency and whiteness.
www.thepotteries.org /types/bonechina.htm   (694 words)

  
  Bone ash - Wikipedia, the free encyclopedia
Bone ash is the white, powdery ash left from the burning (calcination) of bones.
It is commonly used in fertilizers, polishing compounds, and in making ceramics (such as bone china).
Synthetic bone ash has also found use as a mold release agent for the casting of non-ferrous metals such as copper.
en.wikipedia.org /wiki/Bone_ash   (148 words)

  
 Production of bone china - Patent 4219360
A method of preparing bone ash, which comprises degelatinizing and calcining animal bone, steeping the bone ash in an aqueous solution of B.sub.2 O.sub.3 or a substance which on heating is converted to B.sub.2 O.sub.3 whereby B.sub.2 O.sub.3 or its precursor is absorbed or adsorbed onto the bone ash, and calcining the bone ash.
The boron-containing material may be bound to the bone ash by being fused or sintered or calcined with calcined bone, or by being calcined with degelatinized bone so that the calcination simultaneously converts the bone to bone ash and binds the boron-containing material to it.
It is well-known that bone ash calcium phosphate has a high surface area and therefore a high liquid absorption capacity, but is has been found that the porosity and internal surface area of degelatinized but uncalcined bone are adequate to accept sufficient boric acid or borate salt solution for the practice of this invention.
www.freepatentsonline.com /4219360.html   (3631 words)

  
 FanFiction.Net : Dictionary & Thesaurus   (Site not responding. Last check: )
Bone cave, a cave in which are found bones of extinct or recent animals, mingled sometimes with the works and bones of man. --Am.
Bone earth (Chem.), the earthy residuum after the calcination of bone, consisting chiefly of phosphate of calcium.
Bone oil, an oil obtained by heating bones (as in the manufacture of bone fl), and remarkable for containing the nitrogenous bases, pyridine and quinoline, and their derivatives; -- also called Dippel's oil.
www.fanfiction.net /dictionary.php?word=Bone+ash   (534 words)

  
 bone ash - Search Results - MSN Encarta   (Site not responding. Last check: )
- residue from burned bones: the residue, composed mostly of calcium phosphate, that remains when bones of animals are burned to a powder.
The ash of animal bones consists primarily of calcium phosphate.
For many years bones were a principal source of phosphorus, and ground bone, or bone...
ca.encarta.msn.com /bone+ash.html   (99 words)

  
 Bone china - Wikipedia, the free encyclopedia
Bone china is type of porcelain body first developed in Britain in which calcined ox bone, bone ash, is a major constituent.
The first use of bone ash in ceramics is attributed to Thomas Frye in 1748 to make a type of soft-paste porcelain.
In the late 18th century, Josiah Spode undertook further developments, and subsequently popularised it, by mixing it with china clay, kaolin and China stone to compete with the imported Oriental porcelain.
en.wikipedia.org /wiki/Bone_china   (160 words)

  
 Evaluation of Bone Mineral Content in Equine Cadavers and Pregnant Mares
Bone biopsy techniques may prove to be a useful tool in the future for the quantitative analysis of mineral status in the horse.
Therefore, the purpose of this study was to determine the bone composition of the twelfth rib and compare the BMC between the rib and third metacarpal of the horse.
The difference in percent ash and phosphorus between the metacarpal and the rib appears to be due to the composition of the individual bones.
www.ansi.okstate.edu /research/1998rr/24.html   (2091 words)

  
 Tara Southworth
Bone china was first invented in 1800 by Josiah Spode and continues to be manufactured around the world today.
Calcined bone ash is used in the manufacturing of bone china which makes up about 50% of the final weight.
C so that the structure of the bone is able to be used in manufacturing the bone china.
www.louisville.edu /~tlsout01/projects/bone_china.htm   (1412 words)

  
 Bone China
Bone china is a form of hard paste porcelain because it is a mixture of 25% china clay, 25% Cornish stone, 50% bone ash in its standard formula.
Bone China is extremely hard, and is stronger than hard-paste porcelain (due to the addition of the ox bone ash) and easier to manufacture.
The amount of calcined ox bone also allows the addition of more colourful patterns (or more colours to stain the china), thus bone china is usually has most the most exquisite patterens of all china, and those usually are the more expensive and costlier ones.
www.tablewaretips.com /fine-china/bone-china   (502 words)

  
 Antiques - what is bone china?
Bone china is the toughest of porcelains and does indeed contain bones.
Bone ash makes up the greatest part of the formula for bone china, with the balance of the formula containing kaolin and petuntse.
The resulting ash is crushed to a powder and mixed with water before being added to the other porcelain material.
idid.essortment.com /bonechinaporce_rmbs.htm   (1148 words)

  
 Fine China.cc :: Wholesale Fine Bone China Dinnerware
Bone China The ingredients of bone china are china clay, china stone, silica, alumina, alkalies, lime and bone ash.
In the best grades of English bone china 50% or more of the bodyconsists of refined bone ash prepared from specially selected animal bones which are reduced to a fine powder by heat.
The term "bone china" however, indicates that calcined animal bone ash (usually 25% to 50% of the total mixture) has been added to the basic batter of white clay and pulverized stone.
www.finechina.cc   (381 words)

  
 What is Bone China?
In the United States, all bone china must have at least 25 percent bone ash to carry the name.
The clays and bone ash must be mixed together with water, then the slurry is formed into large cylinders that are sliced and formed with plaster molds into dishes, bowls, cups and other pieces.
Many homeowners purchase bone china deliberately to match with their kitchen or dining room décor, while some prefer the classic look of the plain white piece with a ring of gold or platinum at the edge.
www.wisegeek.com /what-is-bone-china.htm   (462 words)

  
 bone from Online Medical Dictionary
Even in the hardest parts of bone there are many minute cavities containing living matter and connected by minute canals, some of which connect with larger canals through which blood vessels ramify.
A bone to pick, something to investigate, or to busy one's self about; a dispute to be settled (with some one).
Bone ash, the residue from calcined bones; used for making cupels, and for cleaning jewelry.
cancerweb.ncl.ac.uk /cgi-bin/omd?bone   (258 words)

  
 Ebonex Corporation   (Site not responding. Last check: )
Historically, bone charcoal has been used for a variety of purposes for several thousand years, but it is in the dry climate of Egypt that the earliest records of the application of bone charcoal are to be found.
However, it was not until 1811 that the decolorizing properties of bone charcoal were fully recognized when a French pharmacist by the name of M. Figuier, made this observation while preparing a shoe-fl from honey, vinegar and finely ground animal charcoal.
Indeed, bone charcoal has continued to be used for this purpose over the years in many countries throughout the world.
www.ebonex.com /b_cha.htm   (216 words)

  
 Differences between Porcelain and Bone China   (Site not responding. Last check: )
It is fired at about 1400 degress C. Bone China, on the other hand, is a mixture of this porcelain mixture and about 40 or 50 percent bone ash.
The bone ash serves to whiten and slightly strengthen the porcelain, while reducing the necessary firing temperature by about 150-200 degrees C. Bone china was invented in England in the late eighteenth century, and was apparently superior in strength, translucency, thinness, and whiteness to the porcelain then being produced in Europe.
I heard from a porcelain collector that most porcelain made today for dinnerware is bone china, though actual bones are apparently no longer generally used; instead they use the pure chemical, calcium carbonate, that is the important ingredient from the bones.
www.thepurplehouse.net /wedding/porcelain.html   (346 words)

  
 RAND RPT and DU-----Bone accumulation---Lung damage Verarmd Uranium Bijlmerramp Bijlmervliegramp Parlementaire Enquete ...
Uranium bone concentration increases with age A plot of the data for uranium in bone ash for the 12 countries is shown in Figure 2.3.
The arithmetic mean of bone ash data is 11 ± 11 µg/kg ash (130 mBq 238U/kg ash) with a range of 0.4 to 51 µg/kg ash (5 to 610 mBq 238U/kg ash).
In short, bone ash data provide an insight into the amount of uranium that naturally distributes in the bone in various countries.
www.xs4all.nl /~stgvisie/VISIE/rand_bone.html   (1163 words)

  
 MFA - CAMEO - Material Description
Bone ash primarily contains calcium hydroxyapatite with small amounts of magnesium phosphate, calcium carbonate, and calcium fluoride.
It is used as a polishing agent and as a flux in ceramics.
Bone ash has also been used as a pigment called bone white in grounds for silver point drawings.
mfa.org /_CAMEO/FRONTEND/material_description.asp?name=bone+ash&...   (79 words)

  
 Murlin BCP 600 Aluminum Grade Bone Ash Mold Release
Because bone ash adheres well to mold surfaces, non-ferrous metal castings obtained from molds dressed with bone ash consistently feature a smoother finish and are virtually free from holes, cracks and other surface defects.
Bone ash waste may be emptied into industrial sewers or removed to dumps in accordance with local, state or federal regulations applicable to non-hazardous materials.
A slurry of bone ash and water may be brushed, sprayed or painted onto the surface.
www.matweb.com /search/SpecificMaterialText.asp?bassnum=CMURL0   (473 words)

  
 Bones: Full Technical Explanation of How They Grow, how to avoid Bone Loss
Osteoporosis is a disease of the bones, characterized by a decrease in bone mass and density.
Bone connective tissue is made up largely of collagen fibers and calcium salt crystals; its structure is strong and rigid.
The connective tissue in both bone and meat is collagen; it is a special type of protein, and you also have it in your skin, for instance, to keep the skin in one piece.
www.oralchelation.com /calcium/boneupa.htm   (8478 words)

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