Red phosphorus is used in safety matches, fireworks, smoke bombs and pesticides. Black phosphorus is also formed by heating white phosphorus, but a mercury catalyst and a seed crystal of black phosphorus are required. Black phosphorus is the least reactive form of phosphorus and has no significant commercial uses.hosphorus has three main allotropes: white, red and black. White phosphorus is poisonous and can spontaneously ignite when it comes in contact with air. For this reason, white phosphorus must be stored under water and is usually used to produce phosphorus compounds.
Vitamin D, which is produced when ultraviolet sunlight hits the skin, helps the body absorb calcium, leading to stronger bones and the prevention of brittle bone diseases. More recently, according to âThe New York Times,â vitamin D deficiency has been linked to immune disorders that can cause inflammation, which in turn can lead to swelling.
Many of these symptoms are classic signs of vitamin D deficiency osteomalacia, which is different from the vitamin D deficiency that causes osteoporosis in adults, he says. What's happening is that the vitamin D deficiency causes a defect in putting calcium into the collagen matrix into your skeleton. As a result, you have throbbing, aching bone pain. 6. Head Sweating. According to Dr. Holick, one of the first, classic signs of vitamin D deficiency is a sweaty head.