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  • For the sixth day of Christmas we've gone with carbon, element number six and a

  • particular sort of coal, called anthracite, which is almost pure carbon. This is a sample

  • of anthracite that was sent to me by a YouTube fan called David Harris; I think in

  • Pennsylvania. Anthracite is really, looks rather beautiful, it looks almost like

  • bits of metal. It's very light and it's almost pure carbon. I think after

  • Christmas we're going to get Neil to burn some of this, but David also sent me some ash

  • that is left over from the burning. Some of it went into the bottle, I put it into

  • a bottle, but one piece was just too big and what's interesting about this ash.

  • which I think was burnt in a furnace, is that it's very light. I think these

  • are just bits of minerals which were included in the lumps of anthracite

  • and they didn't remove properly. According to David that anthracite

  • with almost a colorless flame. So again, that's something which we can test in

  • a future video. And although it's coal, it's not at all dirty. I can rub it on my

  • hand and you can see none of it comes off. So, for the sixth day of Christmas

  • element carbon in anthracite, a glowing guitar plectrum,

  • four drinks containers, three chemical badges, two periodic table bed covers,

  • one piece of tartaric acid from a Swiss wine barrel. And let's see what's number seven.

  • [Prof. Licence] ...gas we get out into our pipe.

  • So this is really for safety because the pressure inside the cylinder,

  • is a lot higher than the pressure that we require

  • in our reaction or inside our balloon.

  • [Prof. Poliakoff] So this is my present for the first day of Christmas.

For the sixth day of Christmas we've gone with carbon, element number six and a

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