Philip Newton (pne) wrote,
  • Mood: annoyed

Chemistry fail

One of the very first things we learned in chemistry (it may even have been on the first day) was the difference between chemical compounds and mixtures, and how the properties of a mixture are a combination of the properties of the components but the properties of a compound may be very different.

The example we used was iron filings mixed with bits of yellow sulphur, compared to iron sulfide. Another good example is water, which is liquid and non-flammable, unlike hydrogen, which is gaseous and flammable, and oxygen, which is also gaseous.

Yet today, I saw a repost on Facebook warning about brominated vegetable oil and claiming that "The main ingredient, bromine, is a poisonous, corrosive chemical".

So should we also warn that the main ingredient of table salt is "a poisonous, corrosive chemical"? Chlorine is no joke... but sodium chloride doesn't act like chlorine gas any more than a Hindenburg filled with water would be able to burn.

Feh.

  • Post a new comment

    Error

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

  • 8 comments