earthbound art If you lean in toward a rock, you will not likely hold well; you should keep yourself out and from the rock to counter the gravitational pull with the body. With your body in balance, move having a slow, rhythmic motion. If possible make an effort to maintain three points of contact with the rock, for example two hands and something foot. Sodium hydroxide is amongst the most dangerous chemicals. It is probably the strongest alkaline, known as caustic soda or lye. It is white, odorless and non-volatile in aqueous solutions. It is not readily flammable. However, it is just a highly reactive substance. It forms an exothermic solution with water, evolving heat that might ignite combustible materials nearby. Its reaction along with other metals yields hydrogen gas which ignites within the presence of oxygen. Moreover, fine is quite corrosive.