XL.—On the decomposition of tricalcic phosphate by water

Warington, Robert

doi:10.1039/js8732600983

Cited by 22 publications

(14 citation statements)

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“…Among the available publications written by two Robert Waringtons [70,72,79,80], Ref. [70] by Robert Warington Jr. deserves both a special attention and extensive citations.…”

Section: In the Nineteenth Centurymentioning

confidence: 98%

“…Namely, C. Morfit [78]; Robert Warington (there were two chemists with this name, presumably, a father (1807-1867) and a son (1838-1907)), who performed the earliest well-documented systematic studies of the outstanding quality [70,72,79,80]; and R. Fresenius [81] also worked with calcium orthophosphates. Interestingly, C. Morfit wrote the chemical symbol of phosphorus as Ph, and, thus, he wrote the chemical formula of tribasic phosphate as 3CaO, PhO 5 [78].…”

Section: In the Nineteenth Centurymentioning

confidence: 99%

“…In addition, the following citation from the same publication "It is quite possible that precipitated tricalcic phosphate may possess somewhat different solubilities, when prepared by different methods; this difference can, however, scarcely be great" (p. 304) has two important consequences: (1) by 1866, this fact was not quite clear yet; (2) it indirectly points to variability in the Ca/P ratio for the precipitated ACP or CDHA, which is the major reason of different solubilities. The latest available publication by Warington of 1873 [80] was devoted to the hydrolysis of a freshly precipitated TCP (i.e., either ACP or CDHA) to the stoichiometric HA under continuous (up to 50 h) boiling in distilled water. From the results of numerous chemical analyses, the author concluded that during boiling an aqueous suspension of the TCP was slowly transformed to a suspension of 3Ca 3 P 2 O 8 .…”

Section: In the Nineteenth Centurymentioning

confidence: 99%

See 2 more Smart Citations

History of Calcium Phosphates in Regenerative Medicine

Dorozhkin¹

2014

Springer Series in Biomaterials Science and Engineering

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The historical development of a scientific knowledge on calcium orthophosphates from the 1770s until 1950 is described. The chosen time scale starts with the earliest available studies of the 1770s (to the best of my findings, calcium orthophosphates had been unknown before), passes through the entire nineteenth century, and finishes in 1950, because since then the amount of publications on calcium orthophosphates rapidly increased and the subject became too broad. In addition, since publications of the second half of the twentieth century are easily accessible, the substantial amount of them has been already reviewed by other scientists. Many forgotten and poorly known historical facts and approaches have been extracted from the old publications. Then they have been analyzed, systematized, and reconsidered from the modern point of view. The reported historical findings clearly demonstrate that many famous scientists of the past contributed to calcium orthophosphate investigations. Furthermore, the significant quantity of the scientific facts and experimental approaches appears to have been known for very many decades, and, in fact, a good deal of the relatively recent investigations on the subject is just either a further development of the earlier studies or a rediscovery of the already forgotten knowledge. Keywords

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“…Among the available publications written by two Robert Waringtons [70,72,79,80], Ref. [70] by Robert Warington Jr. deserves both a special attention and extensive citations.…”

Section: In the Nineteenth Centurymentioning

confidence: 98%

Section: In the Nineteenth Centurymentioning

confidence: 99%

Section: In the Nineteenth Centurymentioning

confidence: 99%

See 1 more Smart Citation

History of Calcium Phosphates in Regenerative Medicine

Dorozhkin¹

2014

Springer Series in Biomaterials Science and Engineering

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“…C. Morfit, 35 Robert Warington [there were 2 chemists with this name, presumably, a father (1807 – 1867) and a son (1838 – 1907)], who performed the earliest well documented systematic studies of the outstanding quality, 36 - 39 and R. Fresenius 40 also worked with calcium orthophosphates. Furthermore, let me cite a paragraph from reference 37: “Mitscherlich tells us, that when chloride of calcium is added to ordinary disodic phosphate, the latter being maintained in excess, the precipitate formed is tricalcic phosphate, while the solution becomes acid from the production of monosodic phosphate.…”

Section: Investigations and Knowledge On Calcium Orthophosphatesmentioning

confidence: 99%

Calcium orthophosphates and human beings

Dorozhkin¹

2012

Biomatter

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The historical development of a scientific knowledge on calcium orthophosphates from the 1770s until 1940 is described. Many forgotten and poorly known historical facts and approaches have been extracted from old publications and then they have been analyzed, systematized and reconsidered from the modern point of view. The chosen time scale starts with the earliest available studies of 1770s (to the best of my findings, calcium orthophosphates had been unknown before), passes through the entire 19th century and finishes in 1940, because since then the amount of publications on calcium orthophosphates rapidly increases and the subject becomes too broad. Furthermore, since publications of the second half of the 20th century are easily accessible, a substantial amount of them have already been reviewed by other researchers. The reported historical findings clearly demonstrate that the substantial amount of the scientific facts and experimental approaches have been known for very many decades and, in fact, the considerable quantity of relatively recent investigations on calcium orthophosphates is just either a further development of the earlier studies or a rediscovery of the already forgotten knowledge.

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“…Although much detailed work has been done on the system CaO-P205-H20, the effect of temperature on its kinetics has not been clearly defined. The results obtained by Warington 11 and later Bassett 3 suggested that the hydrolysis of solid calcium ortho-phosphates in aqueous suspension leads to the loss of phosphorus or calcium to the solution until a solid with a Ca : P ratio of 1.67 is obtained. Schleede et al 9 demonstrated this clearly but they also founc1 that dicalcium phosphate dihydrate was hydrolysed to an apatite-like material only after a prolonged hydrolysis with "hot" water.…”

Section: Introductionmentioning

confidence: 99%