Matches in SemOpenAlex for { <https://semopenalex.org/work/W2020362188> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W2020362188 endingPage "178" @default.
- W2020362188 startingPage "178" @default.
- W2020362188 abstract "E. G. Cox1 states that l-ascorbic acid, is optically negative with α = 1.462, β = 1.68, and γ>1.70. We have examined a material isolated from peppers after the method of A. Szent-Györgyi2 by Dr. A. G. Grollmann, of the Johns Hopkins Medical School. This substance gives the characteristic absorption spectrum of l-ascorbic acid with a maximum coefficient3 at 2650 A.; the melting point is 188°, and the analysis (Mrs. M. S. Sherman) C, 40.80 per cent, H, 4.78 per cent (calculated for C6H8O6; C, 40.89 per cent, H, 4.58 per cent). The compound as crystallised from methyl alcohol or acetone has α = 1.465, β= 1.600±0.006, and γ= 1.747 for 5780 A. The optical sign is either positive or negative within the limit of experimental error, as is verified by the lack of curvature of the isogyre in a centred optic axis interference figure. No evidence was found for structural polymorphism, but the possibility was not rigorously eliminated. These constants, which are for crystals of the type shown in Szent-Györgyi's Fig. 2a2, are published since they are of value in identification of ascorbic acid and since they substantiate Cox's deduction of a plane configuration for the molecule, which is in accord with the accepted furanose ring structure." @default.
- W2020362188 created "2016-06-24" @default.
- W2020362188 creator A5010271497 @default.
- W2020362188 date "1934-02-01" @default.
- W2020362188 modified "2023-09-25" @default.
- W2020362188 title "Refractive Indices of l-Ascorbic Acid" @default.
- W2020362188 cites W1255150800 @default.
- W2020362188 cites W1983107636 @default.
- W2020362188 cites W1989727109 @default.
- W2020362188 doi "https://doi.org/10.1038/133178a0" @default.
- W2020362188 hasPublicationYear "1934" @default.
- W2020362188 type Work @default.
- W2020362188 sameAs 2020362188 @default.
- W2020362188 citedByCount "1" @default.
- W2020362188 countsByYear W20203621882013 @default.
- W2020362188 crossrefType "journal-article" @default.
- W2020362188 hasAuthorship W2020362188A5010271497 @default.
- W2020362188 hasBestOaLocation W20203621881 @default.
- W2020362188 hasConcept C121332964 @default.
- W2020362188 hasConcept C173985810 @default.
- W2020362188 hasConcept C178790620 @default.
- W2020362188 hasConcept C185592680 @default.
- W2020362188 hasConcept C24890656 @default.
- W2020362188 hasConcept C2775997480 @default.
- W2020362188 hasConcept C2779908699 @default.
- W2020362188 hasConcept C2780378348 @default.
- W2020362188 hasConcept C2986274086 @default.
- W2020362188 hasConcept C31903555 @default.
- W2020362188 hasConcept C59822182 @default.
- W2020362188 hasConcept C8010536 @default.
- W2020362188 hasConcept C86803240 @default.
- W2020362188 hasConceptScore W2020362188C121332964 @default.
- W2020362188 hasConceptScore W2020362188C173985810 @default.
- W2020362188 hasConceptScore W2020362188C178790620 @default.
- W2020362188 hasConceptScore W2020362188C185592680 @default.
- W2020362188 hasConceptScore W2020362188C24890656 @default.
- W2020362188 hasConceptScore W2020362188C2775997480 @default.
- W2020362188 hasConceptScore W2020362188C2779908699 @default.
- W2020362188 hasConceptScore W2020362188C2780378348 @default.
- W2020362188 hasConceptScore W2020362188C2986274086 @default.
- W2020362188 hasConceptScore W2020362188C31903555 @default.
- W2020362188 hasConceptScore W2020362188C59822182 @default.
- W2020362188 hasConceptScore W2020362188C8010536 @default.
- W2020362188 hasConceptScore W2020362188C86803240 @default.
- W2020362188 hasIssue "3353" @default.
- W2020362188 hasLocation W20203621881 @default.
- W2020362188 hasOpenAccess W2020362188 @default.
- W2020362188 hasPrimaryLocation W20203621881 @default.
- W2020362188 hasRelatedWork W1976580711 @default.
- W2020362188 hasRelatedWork W2011531053 @default.
- W2020362188 hasRelatedWork W2020362188 @default.
- W2020362188 hasRelatedWork W2062114946 @default.
- W2020362188 hasRelatedWork W2950666140 @default.
- W2020362188 hasRelatedWork W2950912390 @default.
- W2020362188 hasRelatedWork W2950968125 @default.
- W2020362188 hasRelatedWork W2951202326 @default.
- W2020362188 hasRelatedWork W2951287109 @default.
- W2020362188 hasRelatedWork W2951760521 @default.
- W2020362188 hasVolume "133" @default.
- W2020362188 isParatext "false" @default.
- W2020362188 isRetracted "false" @default.
- W2020362188 magId "2020362188" @default.
- W2020362188 workType "article" @default.