Search results
Results from the WOW.Com Content Network
Sodium chloride is a famous binary phase. It features two elements: Na and Cl. In materials chemistry, a binary phase or binary compound is a chemical compound containing two different elements. Some binary phase compounds are molecular, e.g. carbon tetrachloride (CCl 4). More typically binary phase refers to extended solids.
Binary hydrogen compounds in group 1 are the ionic hydrides (also called saline hydrides) wherein hydrogen is bound electrostatically. Because hydrogen is located somewhat centrally in an electronegative sense, it is necessary for the counterion to be exceptionally electropositive for the hydride to possibly be accurately described as truly behaving ionic.
For example, there is a weak bond between hydrogen and iodine in hydroiodic acid, making it a very strong acid. [ citation needed ] In the simplest case, binary acid names are formed by combining the prefix hydro- , the name of the non-hydrogen nonmetallic element, the suffix -ic , and adding acid as a second word. [ 1 ]
These materials are called binary hydrides, because they contain only two elements. The hydrogenic ligand is assumed to have hydridic (H −-like) character. These compounds are invariably insoluble in all solvents, reflecting their polymeric structures. They often exhibit metal-like electrical conductivity. Many are nonstoichiometric compounds.
Three different crystallographic forms exist. Other binary silicon nitrogen compounds have been proposed (SiN, Si 2 N 3, Si 3 N) [86] and other SiN compounds have been investigated at cryogenic temperatures (SiN 2, Si(N 2) 2, SiNNSi). [87] Silicon tetraazide is an unstable compound that easily detonates. The phase diagram with phosphorus shows ...
Sodium phosphate, Na 3 PO 4, is a ternary compound. An example is sodium phosphate, Na 3 PO 4. The sodium ion has a charge of 1+ and the phosphate ion has a charge of 3–. Therefore, three sodium ions are needed to balance the charge of one phosphate ion. Another example of a ternary compound is calcium carbonate, CaCO 3. In naming and writing ...
Although hydrides can be formed with almost all main-group elements, the number and combination of possible compounds varies widely; for example, more than 100 binary borane hydrides are known, but only one binary aluminium hydride. [16] Binary indium hydride has not yet been identified, although larger complexes exist. [17]
In the classic meaning, hydride refers to any compound hydrogen forms with other elements, ranging over groups 1–16 (the binary compounds of hydrogen). The following is a list of the nomenclature for the hydride derivatives of main group compounds according to this definition: [9] alkali and alkaline earth metals: metal hydride; boron: borane ...