In this paper I will be writing about chemistry and technology. The paper will be on how much chemistry is used in modern technology. The first thing I’m writing about is Sulfur, sulfuric acid. The next thing is Phosphorus, phosphoric acid. The last thing is Nitrogen. Chemistry is more important than I ever imagined it would be.
The first thing is Sulfur is a member of the sixth main group of the periodic table. It is a yellow solid which is not soluble in water. It is not a metal. In nature, it occurs in two crystalline structures: Monoclinic and hexagonal. Sulfur burns in air as a blue flame, producing sulfur oxide. It forms sulfides with a number of metals. It is used in the production of some medicines, rubbers and fungicidal products. Sulfur is found on Earth in what are called sulfur beds, or deposits. Besides being found in its pure form, sulfur-containing compounds are found in oil, natural gas and in some rock formations which contain carbon and other materials. Sulfuric acid is a viscous, colorless, very corrosive acid. Concentrated sulphuric acid contains 2% water. It is a very strong oxidizing agent and is often used to rid a system of water. Sulfuric acid is a strong acid. More negative metals than hydrogen dissolve in it, forming a salt and water. A dilute solution will not dissolve copper. A more concentrated solution, however, will dissolve copper, oxidizing it at the same time.
The next thing is phosphorus is the most important element found in the fifth main group of the period table. It has five electrons in its outermost shell. It is also found in the bodies of both animal and human hosts, in the compound calcium phosphate. White phosphate is an oily, poisonous substance which has a characteristic odor. It burns in air, so it has to be stored under water. When heated in the presence of oxygen, it changes into the less reactive red phosphorous. Red phosphorous forms 4-atom molecules and is soluble in fats and oils. When heated, it reacts slowly to form phosphorous oxide. In so doing, energy is released which radiates in the presence of light. This is the characteristic gleam of white phosphorous in the dark, which has led to glowing materials being called phosphorous. Then comes Phosphoric acids are those which come from phosphorus derived from oxygen-containing acids. Phosphoric acids are relatively strong and non-volatile. They have a pleasant-smelling odor and are non-toxic. When added to some drinks, they are taste boosters, making these drinks have more intensive tastes. They are produced by dissolving phosphoric oxide in water. Phosphoric acid (H3PO4) is the most important of all of the phosphorous-containing acids. It is found in numerous physiologically important compounds (for example in DNS). Besides the better-known H3PO4, there are other phosphorous-containing acids such as H3PO3 which is produced as an intermediate in the dissociation reaction with water at a temperature of over 200° C.