| Authorised form of name | Sprengel; Hermann Johann Phillipp (1834 - 1906); chemist |
| Dates | 1834 - 1906 |
| Nationality | German |
| Place of birth | Schillerslage, near Hanover, Germany, Europe |
| Date of birth | 29 August 1834 |
| Place of death | 54 Denbigh Street, London, England |
| Date of death | 14/01/1906 |
| Dates and places | Burial:
Brompton cemetery, London, England |
| Occupation | chemist |
| Research field | Physics |
| Chemistry |
| Activity | Education:
Privately educated at home; Gottingen; Heidelberg. PhD (1858, Heidelberg)
Career:
Went to England (1858) ; Assistant in chemical laboratory, Oxford (1858-9); moved to London and worked at Guy's and St Bartholomew's Hospitals (1862); worked in the chemical works of Thomas Farmer, Kennington, where he invented a generic class of materials called Sprengel explosives (1865-1870); focused on explosives research (1870-1873); made a royal Prussian professor (1893); continued active chemical work, including a high-temperature process for making diamonds (1905).
Memberships:
Chemical Society 1864 |
| Membership category | Fellow |
| Date of election | 06/06/1878 |
| Age at election | 44 |
| Proposer | Thomas Lauder Brunton |
| John Tyndall |
| Charles Watkins Merrifield |
| Maxwell Simpson |
| Hugo Muller |
| John Christopher Augustus Voelcker |
| John Hall Gladstone |
| Frederick Field |
| George Carey Foster |
| William Esson |
| Benjamin Collins Brodie |
| Frederick Augustus Abel |
| August Dupre |
| William Grylls Adams |
| William Crookes |
| Heinrich Debus |
| Frederick Guthrie |
| William Thomson |
| George Gore |
| Robert Bellamy Clifton |
| Robert S Ball |
| Thomas Andrews |
| Relationships | Parents: George Sprengel of Schillerslage; naturalised British (between 1865 and 1870). |
| Published works | RCN R64367
RCN R64372
RCN R64373
RCN R64369
RCN R64371 |
| General context | Discovered the explosive nature of picric acid; invented the mercurial air pump; patented safety explosives. |
| Image | 
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| Sources | Sources:
Bulloch's Roll; DNB |
| Royal Society code | NA6484 |
| Reference number | Title | Date |
| EC/1878/17 | Sprengel, Hermann Johann Phillipp: certificate of election to the Royal Society | |
| MM/16/6 | Statement by Dr Hermann Sprengel on "the discovery of the explosibility of wet guncotton through cumulative detonation" | 15 January 1892 |
| MM/16/5 | Letter from Dr Hermann Sprengel to the Royal Society | 15 June 1892 |
| MM/16/9 | Modification of a statement by Dr Hermann Sprengel on "the discovery of the explosibility of wet guncotton through cumulative detonation" | 16 November 1892 |
| MM/16/13 | Letter from Dr Hermann Sprengel to the President and Council of the Royal Society | 20 February 1893 |
| MM/16/1 | Letter from Dr Hermann Sprengel to Sir Frederick Abel | 25 November 1891 |
| MM/16/15 | Letter from Dr Hermann Sprengel to the President and Council of the Royal Society | 17 May 1893 |
| MM/16/16 | Report by GC Foster on a letter by Dr Hermann Sprengel to the Royal Society, 17 May 1893 | 14 June 1893 |
| MM/16/14 | Letter from GC Foster to Lord Rayleigh | 13 March 1893 |
| MM/16/3 | Letter from GC Foster to Lord Rayleigh | 12 April 1892 |
| MM/16/2 | Letter from Hugo Miller to Lord Rayleigh | 30 March 1892 |
| IM/Maull/004353 | Sprengel, Hermann Johann Phillipp | nd |
| NLB/6/499 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt] | 26 May 1892 |
| NLB/6/654 | Copy letter from Herbert Rix, to Professor George Carey Foster, Fellow of the Royal Society | 22 June 1892 |
| NLB/7/69 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt] | 21 November 1892 |
| NLB/7/67 | Statement as to the explosibility of wet guncotton through cumulative detonation by Hermann Johann Phillipp Sprengel | 16 November 1892 |
| NLB/7/332 | Memoranda with reference to a statement submitted to the Council of the Royal Society by Dr Hermann Johann Phillipp Sprengel, from Frederick Augustus Abel | 13 December 1892 |
| NLB/7/460 | Copy letter from Herbert Rix, to Lord Rayleigh [John William Strutt] | 22 February 1893 |
| NLB/7/506 | Copy letter from Herbert Rix, to Professor George Carey Foster, Fellow of the Royal Society | 3 March 1893 |
| NLB/7/998 | Copy letter from Herbert Rix, to Professor George Carey Foster, Fellow of the Royal Society | 13 June 1893 |
| NLB/22/541 | Copy letter from Robert William Frederick Harrison, to Professor [Herman] Sprengel, Fellow of the Royal Society | 31 May 1901 |
| NLB/32/170 | Copy letter from Robert William Frederick Harrison, to [Messrs Harrison & Sons] | 19 January 1906 |
| MM/16/7 | Report by GC Forster on a statement by Dr Hermann Sprengel on "the discovery of the explosibility of wet guncotton through cumulative detonation" | 19 September 1892 |
| MM/16/11 | Letter from Sir Frederick Abel to Lord Rayleigh | 13 December 1892 |
| MM/16/10 | Letter from Sir Frederick Abel to Lord Rayleigh | 23 November 1892 |
| MM/16/4 | Letter from Dr Hermann Sprengel to Lord Rayleigh | 3 June 1892 |
| MM/16/12 | Letter from GC Foster to Lord Rayleigh | 24 December 1892 |
| MM/16/8 | Letter from Dr Hermann Sprengel to Lord Rayleigh | 16 November 1892 |
| NLB/6/532 | Copy letter from Lord Rayleigh [John William Strutt], to Dr Hermann Johann Phillipp Sprengel, Fellow of the Royal Society, Terling Place Witham, Essex | 29 May 1892 |
| NLB/6/925 | Copy letter from Herbert Rix, to Professor George Carey Foster | 19 September 1892 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |