| RefNo | AP/6/3 |
| Level | File |
| Title | Unpublished paper and letters, 'Observation sur la manière de former l'alun par la combinaison directe de ses principes contituants' ['Observation on the way of forming alum through the direct combination of its constituent parts'] by [Jean Antoine Claude] Chaptal |
| Date | [1789] |
| Description | Chaptal's paper discusses ways in which alum is formed, including by combining clay and vitriolic acid [sulphuric acid], or through the decomposition of pyrite schist. Preceded by two covering letters in English from R J [Richard Joseph] Sullivan to Sir Joseph Banks.
Subject: Chemistry
Whilst the Royal Society declined to publish this essay, it was published in the Mémoires de l’Académie royale des sciences in 1788: Chaptal, Jean Antoine Claude. 'Observation sur la manière de former l'alun par la combinaison directe de ses principes contituans'. Mémoires de l’Académie royale des sciences, tome 10, 1788, pp 768-777. |
| Language | English |
| French |
| Extent | 17p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | Chaptal, Jean Antoine Claude. 'Observation sur la manière de former l'alun par la combinaison directe de ses principes contituans'. Mémoires de l’Académie royale des sciences, tome 10, 1788, pp 768-777. |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA5566 | Chaptal; Jean Antoine Claude (1756 - 1832) | 1756 - 1832 |
| NA3576 | Sullivan; Sir; Richard Joseph (1752 - 1806) | 1752 - 1806 |
| NA8116 | Banks; Sir; Joseph (1744 - 1820); naturalist | 1744 - 1820 |