Download Archaeological Wood. Properties, Chemistry, and Preservation by Roger M. Rowell, R. James Barbour PDF

By Roger M. Rowell, R. James Barbour

This can be the 1st e-book to mix chemistry with options of retaining archaeological wooden. one of the subject matters mentioned in its 17 chapters are the chemical composition of wooden and alterations led to by means of the decay strategy, biopredators, radiation curing, freeze-drying, chemical protection strategies, museum environments, the ethics of conservation, and price platforms for selecting one of the traits of wooden that may be preserved. This quantity offers figuring out, from a systematic viewpoint of archaeological wooden, its homes, its chemistry and its maintenance.

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The visible and the near UV regions are characterized by absorption bands owing to intraatomic d - d transitions. This kind of transition is specific for ions of transition metals with an incomplete d shell. Splitting of the d sub-levels in the ligand field creates a possibility of transitions between the levels due to absorption of appropriate radiation quanta. The colour of solutions of transition metal ions is connected with the intra-atomic d - d transitions. The transition metals are capable of forming coloured complexes even with colourless reagents, which do not contain chromophoric groups.

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