33 specimens illustrating the relationship between colour and constitution in organic substances, 1900-1913. The series was curated between 1911 and 1913 for a display at the Science Museum, London, to demonstrate how chemical structure could be manipulated to produce dyes of a different colour. Most of these specimens were prepared by Frances Micklethwait and Gilbert Thomas Morgan at Imperial College London (Royal College of Sciences), between 1904 and 1913.
One area of Morgan and Micklethwait's research included diazo compounds, which were used to make artficial dyes.
Glass specimen jar containing a "dummy" sample of fulvene, with number 1 label; one of 33 specimens illustrating the relation between colour and constitution in organic substances, British, 1900-1913
Glass specimen jar containg acetone with number 2 label; one of 33 specimens illustrating the relation between colour and constitution in organic substances, British, 1900-1913
Glass specimen jar containg benzophenone with number 3 label; one of 33 specimens illustrating the relation between colour and constitution in organic substances, British, 1900-1913
Benzophenone is found naturally in fruits including grapes. It is used as a flavouring agent and as a building block in organic chemistry.
Glass specimen jar containing benzil, with number 4 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances, British, 1900-1913.
Glass specimen jar containg fluorenone, with number 5 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances, British, 1900-1913
Glass specimen jar containing auramine, with number 6 label; one of 33 specimens illustrating the relation between colour and constitution in organic substances, British, 1900-1913
Auramine is an aniline dye. It is used as a disinfectant and antiseptic agent.
Glass specimen jar containing aniline, with number 12 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Aniline is used to manufacture dyes.
Glass specimen jar containing azobenzene, with number 13 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
The starting material for azobenzene dyes.
Glass specimen jar containing amido-azobenzene (aniline yellow), with number 14 label; one of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Aniline yellow is made from azobenzene and is used as a dye.
Glass specimen jar containg chrysoidine, with number 15 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Chrysoidine was used as a dye.
Glass specimen jar containing triamido-azobenzene, a constituent of Manchester Brown, with number 16 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Also known as Basic or Bismark Brown, Manchester Brown is used as a histological dye.
Glass specimen jar containing azobenzene, with number 22 label; one of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
The starting material for azobenzene dyes.
Glass specimen jar containing pararosaniline hydrochloride, with number 23 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Pararosaniline hydrochloride is used as a histological dye and is one of the main constituents of fuschin dye.
Glass specimen jar containing pararosaniline hydrochloride, with number 23 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Pararosaniline hydrochloride is used as a histological dye and is one of the main constituents of fuschin dye.
Glass specimen jar containing Hofman's Violet, with number 24 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Hofman's violet is an aniline dye.
Glass specimen jar containing Hofman's Violet, with number 24 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Hofman's violet is an aniline dye.
Glass specimen jar containing Aniline Blue, with number 25 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
An aniline dye.
Glass specimen jar containing Aniline Blue, with number 25 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
An aniline dye.
Glass specimen jar containing pararosaniline base, with number 26 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Glass specimen jar containing Quinone, with number 27 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Quinone is used to make dyes.
Glass specimen jar containing p-diketohexamethylene, with number 28 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Glass specimen jar containing Iodoform, with number 29 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Iodoform has been used as an antiseptic.
Glass specimen jar containing methylene iodide, with number 30 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Glass specimen jar containing fluorescein, with number 31 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Fluorescein is used as a diagnostic dye.
Glass specimen jar containing fluorescein, with number 31 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Fluorescein is used as a diagnostic dye.
Glass specimen jar containing eosine, with number 32 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Eosine is a dye.
Glass specimen jar containing eosine, with number 32 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Eosine is a dye.
Glass specimen jar containing chrysoidine with number 33 label (one of two). One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Chrysoidine is a dye.
Glass specimen jar containing clorochrysoidine with number 34 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Glass specimen jar containing Benzene-5-azo-4,6-diamino-1,3-xylene, with number 35 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Glass specimen jar containing p-nitrobenzene-2-azo-4,6-dichloro-1,3-penylenediamine with number 37 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Broken glass specimen jar containing chrysoidine, with number 33 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
Chrysoidine is a dye.
Broken glass specimen jar containing Benzene-6-azo-2-chloro-3,5-tolylenediamine with number 36 label. One of 33 specimens illustrating the relation between colour and constitution in organic substances. Made by Frances Micklethwait and Gilbert Morgan at Imperial College (Royal College of Sciences).
