He says he has calmed down, however. “It’s just from having a number of years playing at the top level. It is a technical sport but you also just need experience. We’re lucky in the front row where you can keep getting better the older you get. “Sometimes my focus has been lacking because it’s very easy to get carried away with the emotion of the game, especially at Test level where you’re playing in front of enormous crowds and playing the anthem at the start. It’s very easy to lose focus and not do the right thing at the right time. Over the years I’ve learned to stop getting carried away so much and just make sure I’m switched on at the right times.”
Anhydrous ferric chloride is a covalent compound FeCl 3 that dissolves in organic solvents as well as in water. It forms bright-yellow crystals as the hexahydrate. Anhydrous ferric sulphate is colorless, but crystals of Fe 2 (SO 4 ) 3 ·9h 2 O are yellow. Ferric ammonium alum, FeNH 4 (SO 4 ) 2 ·12H 2 O is pale violet, the typical ferric color in solution. This is an "alum" without aluminium, the iron standing it for it. It is a mordant because of the gelatinous ferric hydroxide formed when a solution is make alkaline. There are also ferric potassium alum, also colorless or violet, and ferrous ammonium sulphate, which forms blue-green crystals of the hexahydrate.