The word "ammonioferric alum" is a compound of three words - "ammonio", "ferric", and "alum" - that describe its chemical properties. The IPA phonetic transcription of this word is /əˌməʊniəʊˌfɛrɪk ˈæləm/. The stress falls on the second syllable of "ammonio" and the first syllable of "ferric". The pronunciation of this word may be challenging, but it is important for scientists and chemists who work with this substance. "Ammonioferric alum" is often used as an ingredient in water purification, dyeing, and tanning processes.
Ammonioferric alum, also known as ammonium ferric alum or ferric ammonium sulfate, is an inorganic compound with the chemical formula NH4Fe(SO4)2·12H2O. It is a double salt that consists of ammonium sulfate and ferric sulfate combined with twelve molecules of water.
Ammonioferric alum appears as colorless or pale yellow crystals or a crystalline powder. It has a relatively low solubility in water, and its solubility increases with temperature. The compound is commonly used in various industrial processes, as well as in scientific research and laboratory settings.
Ammonioferric alum has several notable characteristics and properties. It has an astringent taste and is slightly acidic in nature. It readily forms octahedral crystals that have a specific gravity of 1.71. The compound also has the ability to form large, transparent crystals, which can be used for optical purposes.
The compound finds applications in a range of fields. In industries, ammonioferric alum is used as a mordant in dyeing and printing textiles, as well as in the process of paper sizing. It is also used in the manufacturing of pharmaceuticals and pigments, and as an ingredient in tanning and as a fireproofing agent. In laboratories, ammonioferric alum is employed as a reagent for various chemical reactions and as a coagulant in water treatment processes.
Overall, ammonioferric alum is a versatile compound that is widely used in different sectors for its chemical, physical, and industrial properties.
Ferri et ammonii sulphas.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "ammonioferric alum" is a compound composed of "ammonio", "ferric", and "alum", each of which has its own etymology.
1. "Ammonio" is derived from the Greek word "ammoniakon", which means "salt of Ammon". It refers to a compound containing ammonia or ammonium. "Ammoniakon" originates from the ancient Egyptian deity Amun (also referred to as Ammon), whose temple was located near the ancient city of Thebes (now Luxor, Egypt). Ammon was associated with the Egyptian god Amun, and the Greeks named the temple region "Ammonium", which eventually led to the term "ammonia" in chemistry.
2. "Ferric" is derived from the Latin word "ferrum", meaning "iron".