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14:38 Oct 25, 2006 |
Spanish to English translations [PRO] Science - Science (general) | |||||||
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| Selected response from: Sheila Hardie Spain Local time: 23:19 | ||||||
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Summary of answers provided | ||||
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3 +2 | boiling chips |
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boiling chips Explanation: I think these are known as 'boiling chips' and are made of silicon carbide. HTH Sheila Boiling Points "Sharp" boiling chips like silicon carbide or coal can often be reused until they become coated with guk and become innefective. ... www.heartmagic.com/zzBoilingPoints.html - 12k - Còpia en memòria - Pàgines semblants [PDF] Material Safety Data Sheet Format del fitxer: PDF/Adobe Acrobat - Versió HTML Synonym: Crystolon Black Silicon Carbide; Boiling Chips. Chemical Name: Silicon Carbide. Chemical Formula: SiC. Contact Information:. Sciencelab.com, Inc. ... www.sciencelab.com/xMSDS-Silicon_Carbide-9924922 - Pàgines semblants boiling chips Boiling chips are small, insoluble, porous stones made of calcium carbonate or silicon carbide. These stones have pores inside which provide cavities both ... orgchem.colorado.edu/hndbksupport/dist/boilchip.html - 3k - Còpia en memòria - Pàgines semblants [PDF] Drug Antibody Measurement by Homogeneous Enzyme Immunoassay with ... Format del fitxer: PDF/Adobe Acrobat Both glass beads and silicon carbide boiling chips break up. in the high-temperature fusion used in this procedure but the ... pubs.acs.org/cgi-bin/abstract.cgi/ancham/1986/58/i06/f-pdf/f_ac00297a060.pdf?sessid=7295 - Pàgines semblants -------------------------------------------------- Note added at 11 minutos (2006-10-25 14:50:37 GMT) -------------------------------------------------- Boiling chips are small, irregularly shaped stones added to liquids to make them boil more smoothly. They provide nucleation sites so the liquid boils easily without becoming superheated. Without boiling chips, a liquid being heated in a smooth container can become superheated and "bump" in a sudden, sometimes violent release of vapor. This sudden burp of gas can cause your solution and reagents to be thrown out of your container, sometimes into fractional column or condenser, destroying a reaction. Boiling chips are typically made of a porous material, such as alumina, calcium carbonate or carbon, and often have a nonreactive coating of Teflon (PTFE). This ensures that the boiling chips will provide effective nucleation sites, yet be chemically inert. http://www.answers.com/topic/boiling-chip -------------------------------------------------- Note added at 13 minutos (2006-10-25 14:52:38 GMT) -------------------------------------------------- http://mx.answers.yahoo.com/question/index?qid=2006092715300... |
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