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Sassanid bowl with sitting griffin, gilted silver, from Iran.. The griffin, griffon, or gryphon (Ancient Greek: γρύψ, romanized: grýps; Classical Latin: gryps or grypus; [1] Late and Medieval Latin: [2] gryphes, grypho etc.; Old French: griffon) is a legendary creature with the body, tail, and back legs of a lion, and the head and wings of an eagle with its talons on the front legs.
The griffin on the shield is holding a sword and is the symbol of Vidzeme and Latgale (Eastern Latvia), one of the historical territories making up modern day Latvia. The coat of arms of Lithuania also features a white griffin as a supporter. Historically, the coat of arms of Austria-Hungary featured a black-gold griffin as a supporter.
The common low form with a spout was devised by John Joseph Griffin and is therefore sometimes called a Griffin beaker. [4] [5] These are the most universal character and are used for various purposes—from preparing solutions and decanting supernatant fluids to holding waste fluids prior to disposal to performing simple reactions. Low form ...
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
Chemical symbols are the abbreviations used in chemistry, mainly for chemical elements; but also for functional groups, chemical compounds, and other entities. Element symbols for chemical elements, also known as atomic symbols , normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised.
Griffin's method for non-ionic surfactants as described in 1954 works as follows: = / where is the molecular mass of the hydrophilic portion of the molecule, and M is the molecular mass of the whole molecule, giving a result on a scale of 0 to 20. An HLB value of 0 corresponds to a completely lipophilic/hydrophobic molecule, and a value of 20 ...
Alchemical symbols were used to denote chemical elements and compounds, as well as alchemical apparatus and processes, until the 18th century. Although notation was ...
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...