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Chapter 4 – Tests for the Elements, their Ions and Compounds

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The article was published on 1972-01-01. It has received 6 citations till now.

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A history of pest control measures in the anthropology collections, national museum of natural history, smithsonian institution

TL;DR: Since the mid-19th century, various pest eradication techniques have been employed on the anthropology collections at the National Museum of Natural History, Smithsonian Institution as mentioned in this paper, and these techniques are reviewed, and pesticide and fumigant use by early collectors and later collections management staff is documented.
Journal ArticleDOI

The characterization of pigments based on carbon

TL;DR: In this paper, the main features, molecular structures and physical and chemical properties of these carbon types, so far as they are relevant to pigment studies, are reviewed in outline and some better-known pigments based on carbon are summarized, with an indication of which form or forms of carbon each contains.
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‘Lead white’ in Japanese paintings

TL;DR: In this paper, the Freer collection of Japanese paintings of the twelfth to the sixteenth centuries has been determined, and basic lead carbonate (lead white) was found in 12 out of 13 Chinese paintings and in all three Korean paintings.
Journal ArticleDOI

Narration and Legacy of Important Chemical Spot Tests in Forensic Investigation.

TL;DR: The outlook and likely impact of these tests on the expansion of scientific investigation and legacy and technical details of selected spot tests used in solving crime are described.
Journal ArticleDOI

Treatment of a Silver Dragon for the Removal of Silver Cyanide and Chalconatronite

TL;DR: In this article, the corrosion products on a silver dragon suspected to have been treated with cyanide revealed both silver cyanide and chalconatronite, which can be formed on silver objects cleaned or replated using a cyanide solution.
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Journal ArticleDOI

Die Bestimmung von Fluor in Mineralwässern mittels Zr-Xylenolorange

Roman Valach
- 01 Jun 1961 - 
TL;DR: In this paper, a new vorgeschlagene Methode, which ermoglicht eine schnelle Bestimmung von Fluor in Mineralwassern und and other Materialen with hohem Gehalt an Phosphaten, Sulfaten, Eisen(III) and Aluminium, is introduced.
Journal ArticleDOI

The Determination of Micro Amounts of Polythionates. V. A Photometric Method for the Determination of Polythionates When Two Species of Them, Tetra-, Penta- and Hexathionate, are Present Together

TL;DR: In this paper, a photometric method for the determination of polythionate when two species of polythsionates, tetra-, penta-and hexathionate, are present toghther has been devised; it depends upon the determined of the different amounts of thiocyanate formed from the cyanolysis, both in the presence of cupric ions and in their absence.
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Über die Verwendung der Barbitursäure für die photometrische Bestimmung von Chlor im Wasser

TL;DR: The Mes-methode as discussed by the authors is a photometrische bestimmungsmethode fur Chlor im Wasser beschrieben, in which polymethinfarbstoffes are verwendet.
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The use of tetramethyldiamino-diphenylmethane for the determination of small amounts of manganese in plant material and soil extracts.

TL;DR: In this paper, it was shown that the very sensitive reaction between manganese and 4:4′-tetramethyldiaminodiphenylmethane in the presence of periodate can be applied to the quantitative estimation of the element in the range 0.1-1 μg.