coloured compound造句

• This red-coloured compound features a quadruple bond.
• This green-coloured compound is polymeric in the solid state but evaporates to a tetrahedral monomer.
• "' Chromogen "'is a substance which can be readily converted into dye or other coloured compound.
• The problem with threating handkerchiefs in this way in that bacteria on the skin ( and in the nose ) are often " pigmented ", ie . they produce coloured compounds.
• A second linked reaction, mediated by a peroxidase, catalyses the reaction between the peroxide and a chromogen ( a substance that acquires colour after a chemical reaction ) to form a coloured compound that indicates the glucose concentration.
• Reduction with uric acid or iron ( II ) sulfate produces a brown coloured compound . the related silicotungstic acid when reduced forms a similar brown compound where one of the four W 3 units in the Keggin structure becomes a metal-metal bonded cluster of three edge shared W ( IV ) octahedra.