Studies on the refractive index and dispersion of American tung oil
Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Holmes, Raiford L. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1948 |
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| Schlagwörter: |
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| Anmerkung: |
© The American Oil Chemists' Society 1978 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of the American Oil Chemists Society - Springer-Verlag, 1947, 25(1948), 5 vom: Mai, Seite 163-167 |
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| Übergeordnetes Werk: |
volume:25 ; year:1948 ; number:5 ; month:05 ; pages:163-167 |
| Links: |
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| DOI / URN: |
10.1007/BF02631518 |
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| Katalog-ID: |
OLC2067974084 |
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| 245 | 1 | 0 | |a Studies on the refractive index and dispersion of American tung oil |
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| 520 | |a Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. | ||
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10.1007/BF02631518 doi (DE-627)OLC2067974084 (DE-He213)BF02631518-p DE-627 ger DE-627 rakwb eng 660 VZ Holmes, Raiford L. verfasserin aut Studies on the refractive index and dispersion of American tung oil 1948 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The American Oil Chemists' Society 1978 Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. Refractive Index Iodine Number Fractive Index Triacetin Eleostearic Acid Pack, Frank C. aut Enthalten in Journal of the American Oil Chemists Society Springer-Verlag, 1947 25(1948), 5 vom: Mai, Seite 163-167 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:25 year:1948 number:5 month:05 pages:163-167 https://doi.org/10.1007/BF02631518 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4315 AR 25 1948 5 05 163-167 |
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10.1007/BF02631518 doi (DE-627)OLC2067974084 (DE-He213)BF02631518-p DE-627 ger DE-627 rakwb eng 660 VZ Holmes, Raiford L. verfasserin aut Studies on the refractive index and dispersion of American tung oil 1948 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The American Oil Chemists' Society 1978 Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. Refractive Index Iodine Number Fractive Index Triacetin Eleostearic Acid Pack, Frank C. aut Enthalten in Journal of the American Oil Chemists Society Springer-Verlag, 1947 25(1948), 5 vom: Mai, Seite 163-167 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:25 year:1948 number:5 month:05 pages:163-167 https://doi.org/10.1007/BF02631518 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4315 AR 25 1948 5 05 163-167 |
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10.1007/BF02631518 doi (DE-627)OLC2067974084 (DE-He213)BF02631518-p DE-627 ger DE-627 rakwb eng 660 VZ Holmes, Raiford L. verfasserin aut Studies on the refractive index and dispersion of American tung oil 1948 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The American Oil Chemists' Society 1978 Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. Refractive Index Iodine Number Fractive Index Triacetin Eleostearic Acid Pack, Frank C. aut Enthalten in Journal of the American Oil Chemists Society Springer-Verlag, 1947 25(1948), 5 vom: Mai, Seite 163-167 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:25 year:1948 number:5 month:05 pages:163-167 https://doi.org/10.1007/BF02631518 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4315 AR 25 1948 5 05 163-167 |
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10.1007/BF02631518 doi (DE-627)OLC2067974084 (DE-He213)BF02631518-p DE-627 ger DE-627 rakwb eng 660 VZ Holmes, Raiford L. verfasserin aut Studies on the refractive index and dispersion of American tung oil 1948 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The American Oil Chemists' Society 1978 Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. Refractive Index Iodine Number Fractive Index Triacetin Eleostearic Acid Pack, Frank C. aut Enthalten in Journal of the American Oil Chemists Society Springer-Verlag, 1947 25(1948), 5 vom: Mai, Seite 163-167 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:25 year:1948 number:5 month:05 pages:163-167 https://doi.org/10.1007/BF02631518 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4315 AR 25 1948 5 05 163-167 |
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10.1007/BF02631518 doi (DE-627)OLC2067974084 (DE-He213)BF02631518-p DE-627 ger DE-627 rakwb eng 660 VZ Holmes, Raiford L. verfasserin aut Studies on the refractive index and dispersion of American tung oil 1948 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The American Oil Chemists' Society 1978 Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. Refractive Index Iodine Number Fractive Index Triacetin Eleostearic Acid Pack, Frank C. aut Enthalten in Journal of the American Oil Chemists Society Springer-Verlag, 1947 25(1948), 5 vom: Mai, Seite 163-167 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:25 year:1948 number:5 month:05 pages:163-167 https://doi.org/10.1007/BF02631518 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4315 AR 25 1948 5 05 163-167 |
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Studies on the refractive index and dispersion of American tung oil |
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Studies on the refractive index and dispersion of American tung oil |
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Holmes, Raiford L. |
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Journal of the American Oil Chemists Society |
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1948 |
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163 |
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Holmes, Raiford L. Pack, Frank C. |
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10.1007/BF02631518 |
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660 |
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studies on the refractive index and dispersion of american tung oil |
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Studies on the refractive index and dispersion of American tung oil |
| abstract |
Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. © The American Oil Chemists' Society 1978 |
| abstractGer |
Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. © The American Oil Chemists' Society 1978 |
| abstract_unstemmed |
Conclusions Tung oil has a refractive index and a dispersion so far above those of any other common oil that both are valuable criteria for identification purposes. With proper equipment the dispersion, in addition to the refractive index, can be determined with little extra effort and would confirm the conclusions drawn from the refractive index.Mixtures of tung oil with another vegetable oil (except oiticica and other rare conjugated oils) can be analyzed to within 0.5% from the refractive index for either the sodium or the mercury line if the refractive indices of the separate oils are known. The mixtures can be analyzed from the dispersion to within about 1% of the correct composition if the dispersions of the separate oils are known. If the adulterating oil is not known the adulteration can be more closely estimated from the depression of the dispersion than from the depression of the refractive index.When tung oil is bodied by heat the refractive indices for the sodium and mercury lines and the dispersion fall rapidly and continuously to the point of gelation, but the changes are so similar that no worth-while additional information is obtained by determining more than one refractive index. The fact that refractive index decreases as viscosity increases suggests the use of the refractive index in controlling the bodying of tung oil.Other things being equal, the refractive index for the mercury line should give more accurate information on tung oil than that for the sodium line because of the greater changes in the refractive index for the mercury line upon adulteration or heating.A correlation coefficient of 0.83 was found for refractive index with the diene number of tung oil. A lower correlation coefficient was found for refractive index with the iodine number, but the latter would probably be higher if a more accurate method for the determination of the iodine number of tung oil were available. © The American Oil Chemists' Society 1978 |
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Studies on the refractive index and dispersion of American tung oil |
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