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VI. On Portable Chemical Apparatus for Quantitative Mineral Analysis
Published online by Cambridge University Press: 14 March 2018
Extract
Towards the end of the last century one Professor Göttling, who taught chemistry in the schools of Jena, conceived the idea of preparing a portable chest of chemistry, or complete, collection of Chemical Tests. Chemical knowledge being in those days somewhat limited, we are not surprised to find that the contents of the chest could be stowed within a space nine inches square by twelve deep.
This cosmopolitan collection was intended for the use of chemists, physicians, mineralogists, scientific artists, manufacturers, farmers, and the cultivators of natural philosophy. The tests were prepared by a Mr. Hunneman, a friend of the author, and pupil of Klaproth and Hermbstaedt of Berlin; and were put up in thirty five glass bottles and some small wooden boxes.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 4 , Issue 18 , September 1880 , pp. 81 - 95
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1880
References
page 81 note * A copy of the small treatise which accompanied the collection, and which formerly belonged to Faraday, is now in the Library of the Chemical Society The English version was published in 1791 in London, and was sold by Messrs. C. and G. Kearsleys, No. 46 Fleet Street, who also supplied the chests.
page 82 note * Croustedt's Mineralogy, which appeared in English in 1770, was the first systematic work in this field. He does not give any quantitative relations: neither does he mention in the attached description of a pocket laboratory, any attempt at quantitative estimations. Gustavus von Engestroem and Bergman wrote descriptive treatises upon pocket laboratories soon after Cronstedt's; but the discrimination of different substances occupied their sole attention.
page 83 note * The previous work of Berzelius (1820) and of Harkort (1827) contributed, however, to Plattner's Success.
page 83 note † I do not wish in any way to undervalue the excellent work that is done all over the world by means of the blowpipe. A pocket case is of great service in the field, and enables the mineralogist to discriminate between valuable and non-valuable minerals in a number of instances: that is to say, between those which are worth and those which are not worth more accurate chemical investigation. While acknowledging the importance of Blowpipe Chemistry, I cannot acknowledge that it fulfils the requirements of technology in an adequate manner. Plattner's complete cabinet of Blowpipe apparatus sold in this country at 30 guineas, does not suffice for the scientific valuation of ores of the common metals.
page 86 note * 5 c.c. of a standard sol. of FeSO4 were taken, 50 c.c. of which solution was known to contain 0·4964 gm. iron as FeSO4.