As an interesting aside to this, Dr Crippen - a well known muderer who was arrested on a ship returning from the USA in company with his new lady-love (what was her name?)- made the fatal mistake of burying his wife's body together with lime which he then slaked. The result was that instead of destroying the body, it preserved it for the police to find. You would think a medical doctor would know better. (than to slake the lime I mean).