Research on AcidityBy Kyan Mulji 9sTable of ContentsWhat is acidity and some of its uses?Before I can define acidity, I would like to define an acid . An acid is a word derived from the Latin word acere which means sour in English. The general characteristics of acids are1. They taste sour.2. They are corrosive to metals3. They turn red in litmus paper4. They have a PH of 1 to 6.5. Usually gases or liquids6. Often feeling sticky7. Acids neutralize bases to form laths and water8. They react with active metals to form hydrogen9. React with carbonates to produce salt, water and carbon dioxide10. Change the methyl orange to red. The pH scale can be used to determine the strength of an acid. One means the acid is very strong and six means the acid is very weak. Some examples of acids are in the table belowFormula name Strong?HCl hydrochloric acid yesHBr hydrobromic acid yesHI hydroiodic acid yesHF hydrofluoric acid noHNO3 nitric acid yesH2SO4 sulfuric acid yesH3PO4 phosphoric acid noCH3COOH acetic acid noThe table above shows that most acids are very strong. Acidity can be defined as the amount of acid found in a certain mixture, for example in water. Acids in Industry Acids such as nitric acid, sulfuric acid, and phosphoric acid have countless uses in industry. Some acids such as acetic acid or phosphoric acid contained in soft drinks are sold as consumer products. Other acids are used in the synthesis of dyes, fertilizers, explosives, and many other chemicals essential to our lives.FertilizersFertilizers are essential to modern industrial agriculture. Nitrogen and phosphorus are two of the most important plant nutrients. Nitric acid, phosphoric acid, ...... middle of paper ...... which involves mixing crushed limestone with water. This forms a slurry. It is then sprayed on the area containing sulfur dioxide. This reacts to form an aqueous suspension of calcium sulfate. Compressed air is then blown into this slurry. This oxidizes the calcium sulfite to form calcium sulfate. The product is treated to remove excess water and is disposed of in landfills. Another system is called spray drying system. An alkali suspension is injected into the combustion gases. The heat from the combustion gases causes the water to evaporate. The sulfur dioxide reacts with the drying alkaline solution to form a solid reaction product. There is no wastewater from this process. Seawater Purification System – It uses the natural alkalinity of seawater and acidic gases. The combustion gases are trapped in an absorption tower. This is where they flow against a current of sea water