Michael Freemantle

  • A traditional kerosene lamp
    Podcast

    Kerosene

    21 June 2018

    Bat-borne bombs and a classic chemistry textbook, with Mike Freemantle

  • British World War 1 soldiers in a front line trench, 1915-18
    Podcast

    Calcium hypochlorite

    10 May 2018

    A component of 'trench atmosphere' and ‘the most powerful antiseptic known’, Mike Freemantle explores calcium hypochlorite and the birth of a chemical dynasty

  • Blue lobster
    Podcast

    Astaxanthin

    2 March 2018

    Colourful crustaceans and the story of a ubiquitous biological pigment

  • Imperial topaz
    Podcast

    Topaz

    26 January 2018

    A tale of adventure on the high seas, and the treasured topaz spoils

  • Grenadine-based drinks
    Podcast

    Fructose

    21 December 2017

    Super-sweet and packed with preserving power, Mike Freemantle discovers that fructose can help keep things fresh long after the sell-by date

  • Swimming underwater in a pool
    Podcast

    Acesulfame potassium

    30 November 2017

    A sweet solution to monitoring contaminated water

  • Preparing a solution from the salt of sodium dichromate
    Podcast

    Sodium dichromate

    6 October 2017

    Discover the compound at the heart of a multi-million dollar legal case and an Oscar–winning role for Julia Roberts

  • Alizarin based pigment being squeezed from a metal tube
    Podcast

    Alizarin

    7 September 2017

    Mike Freemantle introduces a pigment used by William Morris that also gave the Redcoats their distinctive hue

  • Film x-ray of human foot and arthritis at first metatarsophalangeal Joint . 2 position ( front and side view )
    Podcast

    Indometacin

    10 August 2017

    A popular prescription pill that helps to keep gout and other arthritic conditions under control

  • Soldiers wearing WW1 gas masks. L-R: American, British. French, German. 1917-18.
    Podcast

    Diphenylchlorarsine

    21 July 2017

    One of the few technical mistakes the Germans made in the first world war

  • 0717CW - Last Retort - Index
    Opinion

    The Weizmann contribution

    5 July 2017

    How the future president of Israel kept Britain fighting in the first world war

  • Trees in autumn
    Podcast

    Anthocyanins

    7 May 2017

    The pigments responsible for the rich colours of autumn leaves

  • Orange and black striped caterpillars of the Cinnabar Moth, on wild yellow ragwort flowers
    Podcast

    Ragwort alkaloids

    19 April 2017

    Pyrrolizidine alkaloids from Ragworts and other plants are popular with pollinators but a potent poison to livestock, as Mike Freemantle discovers

  • Packet of mercurous chloride tablets, Kassel, Germany, 1914-1917
    Podcast

    Mercuric chloride

    29 March 2017

    From an early ointment for spots to a medicine for syphilitic Victorians

  • Bandaged British World War 1 soldiers in a battlefield trench, 1915-1918.
    Podcast

    Mustine

    8 March 2017

    How chemical weapons inspired the birth of cancer chemotherapy

  • Ionic liquids concept illustration
    Feature

    Ionic liquids revisted

    7 October 2016

    Ionic liquids have flowed far and wide since they first bubbled to the surface in the late 1990s. Michael Freemantle reports

  • Picric acidiStock2259112300tb
    Podcast

    Picric acid

    20 July 2016

    A yellow dress, of the type worn by Jane Austen, sets Michael Freemantle exploring the chemistry of picric acid

  • Ammonium carbonatecredit RSC Ben Valsler300tb
    Podcast

    Ammonium carbonate

    29 June 2016

    Ever taken a whiff of smelling salts? For many years, the compound that contributed the pungent pong was ammonium carbonate

  • Union Carbide factory in Bhopal, India
    Podcast

    Methyl isocyanate

    15 June 2016

    The 1984 accident at Bhopal, India, was the worst in the history of industrial chemistry. It involved a leak of methyl isocyanate

  • Coumarin 392214286
    Podcast

    Coumarin

    18 May 2016

    Michael Freemantle takes a stroll through ‘Jane Austen country’ to discover this week’s compound: Coumarin

More by Michael Freemantle