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The Heat of Combustion of Beryllium in Fluorine
An experimental determination of the energies of combustion in fluorine of polytetrafluoroethylene film and powder and of mixtures of beryllium with polytetrafluoroethylene gives for reaction (1) kJ mol (-244.32 kcal mol ) with an overall precision of 0.96 kJ mol (0.23 kcal mol ) at the 95 percent c...
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| Published in: | Journal of research of the National Bureau of Standards. Section A. Physics and chemistry 1969-05, Vol.73A (3), p.281-297 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c2264-c0c476fa762901de2944ae8526e10639f26d778c73b0c2b65001451d6645b3e83 |
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| container_end_page | 297 |
| container_issue | 3 |
| container_start_page | 281 |
| container_title | Journal of research of the National Bureau of Standards. Section A. Physics and chemistry |
| container_volume | 73A |
| creator | Churney, K L Armstrong, G T |
| description | An experimental determination of the energies of combustion in fluorine of polytetrafluoroethylene film and powder and of mixtures of beryllium with polytetrafluoroethylene gives for reaction (1)
kJ mol
(-244.32 kcal mol
) with an overall precision of 0.96 kJ mol
(0.23 kcal mol
) at the 95 percent confidence limits. The total uncertainty is estimated not to exceed ±3.2 kJ mol
(±0.8 kcal mol
). The measurements on polytetrarluoroethylene give for reaction (2a) and reaction (2b)
and -10392.4 Jg
, respectively. Overall precisions expressed at the 95 percent confidence limits are 3.3 and 6.0 Jg
, respectively. (1)
(2a)
(2b)
Be
C and Be metal were observed in a small carbonaceous residue from the combustion of the beryllium-polytetrafluoroethylene mixtures. Methods of analysis for these substances were developed. Gases resulting from the solution of the solid residues in aqueous KOH were analyzed for H
and CH
by differential absorption in molecular sieves at low temperatures. |
| doi_str_mv | 10.6028/jres.073A.024 |
| format | article |
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kJ mol
(-244.32 kcal mol
) with an overall precision of 0.96 kJ mol
(0.23 kcal mol
) at the 95 percent confidence limits. The total uncertainty is estimated not to exceed ±3.2 kJ mol
(±0.8 kcal mol
). The measurements on polytetrarluoroethylene give for reaction (2a) and reaction (2b)
and -10392.4 Jg
, respectively. Overall precisions expressed at the 95 percent confidence limits are 3.3 and 6.0 Jg
, respectively. (1)
(2a)
(2b)
Be
C and Be metal were observed in a small carbonaceous residue from the combustion of the beryllium-polytetrafluoroethylene mixtures. Methods of analysis for these substances were developed. Gases resulting from the solution of the solid residues in aqueous KOH were analyzed for H
and CH
by differential absorption in molecular sieves at low temperatures.</description><identifier>ISSN: 0022-4332</identifier><identifier>EISSN: 2376-5704</identifier><identifier>DOI: 10.6028/jres.073A.024</identifier><identifier>PMID: 31935001</identifier><language>eng</language><publisher>United States: National Institute of Standards and Technology</publisher><subject>Physics and Chemistry</subject><ispartof>Journal of research of the National Bureau of Standards. Section A. Physics and chemistry, 1969-05, Vol.73A (3), p.281-297</ispartof><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2264-c0c476fa762901de2944ae8526e10639f26d778c73b0c2b65001451d6645b3e83</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6728455/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6728455/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,27903,27904,53769,53771</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31935001$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Churney, K L</creatorcontrib><creatorcontrib>Armstrong, G T</creatorcontrib><title>The Heat of Combustion of Beryllium in Fluorine</title><title>Journal of research of the National Bureau of Standards. Section A. Physics and chemistry</title><addtitle>J Res Natl Bur Stand A Phys Chem</addtitle><description>An experimental determination of the energies of combustion in fluorine of polytetrafluoroethylene film and powder and of mixtures of beryllium with polytetrafluoroethylene gives for reaction (1)
kJ mol
(-244.32 kcal mol
) with an overall precision of 0.96 kJ mol
(0.23 kcal mol
) at the 95 percent confidence limits. The total uncertainty is estimated not to exceed ±3.2 kJ mol
(±0.8 kcal mol
). The measurements on polytetrarluoroethylene give for reaction (2a) and reaction (2b)
and -10392.4 Jg
, respectively. Overall precisions expressed at the 95 percent confidence limits are 3.3 and 6.0 Jg
, respectively. (1)
(2a)
(2b)
Be
C and Be metal were observed in a small carbonaceous residue from the combustion of the beryllium-polytetrafluoroethylene mixtures. Methods of analysis for these substances were developed. Gases resulting from the solution of the solid residues in aqueous KOH were analyzed for H
and CH
by differential absorption in molecular sieves at low temperatures.</description><subject>Physics and Chemistry</subject><issn>0022-4332</issn><issn>2376-5704</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1969</creationdate><recordtype>article</recordtype><recordid>eNpVkE1Lw0AQhhdRbK0evUr-QOrs7FdyEWqxVih4qecl2WzsliRbdhuh_96GatHTMMw7zwwPIfcUphIwe9wGG6eg2GwKyC_IGJmSqVDAL8kYADHljOGI3MS4BeAcmbgmI0ZzJgDomDyuNzZZ2mKf-DqZ-7bs4975buiebTg0jevbxHXJoul9cJ29JVd10UR791Mn5GPxsp4v09X769t8tkoNouSpAcOVrAslMQdaWcw5L2wmUFoKkuU1ykqpzChWgsFSDs9wQSspuSiZzdiEPJ24u75sbWVstw9Fo3fBtUU4aF84_X_SuY3-9F9aKsy4EEdAegKY4GMMtj7vUtCDOT2Y04M5fTR3zD_8PXhO_6pi37fJaPM</recordid><startdate>196905</startdate><enddate>196905</enddate><creator>Churney, K L</creator><creator>Armstrong, G T</creator><general>National Institute of Standards and Technology</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>5PM</scope></search><sort><creationdate>196905</creationdate><title>The Heat of Combustion of Beryllium in Fluorine</title><author>Churney, K L ; Armstrong, G T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2264-c0c476fa762901de2944ae8526e10639f26d778c73b0c2b65001451d6645b3e83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1969</creationdate><topic>Physics and Chemistry</topic><toplevel>online_resources</toplevel><creatorcontrib>Churney, K L</creatorcontrib><creatorcontrib>Armstrong, G T</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of research of the National Bureau of Standards. Section A. Physics and chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Churney, K L</au><au>Armstrong, G T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Heat of Combustion of Beryllium in Fluorine</atitle><jtitle>Journal of research of the National Bureau of Standards. Section A. Physics and chemistry</jtitle><addtitle>J Res Natl Bur Stand A Phys Chem</addtitle><date>1969-05</date><risdate>1969</risdate><volume>73A</volume><issue>3</issue><spage>281</spage><epage>297</epage><pages>281-297</pages><issn>0022-4332</issn><eissn>2376-5704</eissn><abstract>An experimental determination of the energies of combustion in fluorine of polytetrafluoroethylene film and powder and of mixtures of beryllium with polytetrafluoroethylene gives for reaction (1)
kJ mol
(-244.32 kcal mol
) with an overall precision of 0.96 kJ mol
(0.23 kcal mol
) at the 95 percent confidence limits. The total uncertainty is estimated not to exceed ±3.2 kJ mol
(±0.8 kcal mol
). The measurements on polytetrarluoroethylene give for reaction (2a) and reaction (2b)
and -10392.4 Jg
, respectively. Overall precisions expressed at the 95 percent confidence limits are 3.3 and 6.0 Jg
, respectively. (1)
(2a)
(2b)
Be
C and Be metal were observed in a small carbonaceous residue from the combustion of the beryllium-polytetrafluoroethylene mixtures. Methods of analysis for these substances were developed. Gases resulting from the solution of the solid residues in aqueous KOH were analyzed for H
and CH
by differential absorption in molecular sieves at low temperatures.</abstract><cop>United States</cop><pub>National Institute of Standards and Technology</pub><pmid>31935001</pmid><doi>10.6028/jres.073A.024</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0022-4332 |
| ispartof | Journal of research of the National Bureau of Standards. Section A. Physics and chemistry, 1969-05, Vol.73A (3), p.281-297 |
| issn | 0022-4332 2376-5704 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_6728455 |
| source | PubMed Central |
| subjects | Physics and Chemistry |
| title | The Heat of Combustion of Beryllium in Fluorine |
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