Don't be weedy - hit the chemistry set

Is your garden a touch messy? Chances are you'll be reaching for the weedkiller. Generally speaking we know these more by the brandname than the active chemical, but there is at least one compound that has taken on a life of its own - and that's paraquat.

Find out the pros and cons of this controversial chemical in my latest Royal Society of Chemistry podcast about 1,1'-Dimethyl-4,4'-bipyridinium dichloride, as I like to call it.  Take a listen by clicking to pop over to its page on the RSC site.