A Chemical That Can Kill - Acid Documentary - Films

An acid is a chemical compound whose aqueous remedies are identified by a sour taste, the capacity to turn blue litmus red, and also the capacity to react with bases as well as certain steels (like calcium) to develop salts. Liquid options of acids have a pH of less than 7. Non-aqueous acids are generally developed when an anion (negative ion) reacts with one or more positively billed hydrogen cations. A lesser pH implies a greater acidity, and thus a greater focus of favorable hydrogen ions in the remedy. Chemicals or compounds having the real property of an acid are claimed to be acidic. There are three common interpretations for acids: the Arrhenius definition, the Brønsted-Lowry definition, and the Lewis meaning. The Arrhenius interpretation defines acids as elements which enhance the focus of hydrogen ions (H+), or more properly, hydronium ions (H3O+), when liquefied in water. The Brønsted-Lowry meaning is a development: an acid is an element which can act as a proton contributor. By this interpretation, any type of substance which can effortlessly be deprotonated can be taken into consideration an acid. Examples include alcoholics beverages and amines which have O-H or N-H fragments.

A Lewis acid is a material that can accept a pair of electrons to develop a covalent bond. Examples of Lewis acids include all metal cations, and also electron-deficient particles such as boron trifluoride as well as aluminium trichloride. Usual instances of acids include hydrochloric acid (an option of hydrogen chloride which is found in gastric acid in the belly and also switches on digestion enzymes), acetic acid (vinegar is a dilute remedy of this liquid), sulfuric acid (used in car batteries), as well as tartaric acid (a solid made use of in cooking). As these examples show, acids can be solutions or pure substances, and also can be originated from solids, liquids, or gases. Strong acids and some concentrated weak acids are destructive, however there are exemptions such as carboranes as well as boric acid.