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trivalent
trivalent, a. and n. (traɪˈveɪlənt, ˈtraɪvələnt, ˈtrɪv-) [f. tri- + L. valēnt-em, pr. pple. of valēre to be worth.] A. adj. 1. Chem. Having the combining power of three atoms of hydrogen or other univalent element; combining with three atoms of a univalent element or radical.1868 Fownes Elem. Chem. ...
Oxford English Dictionary
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Trivalent group 14 radicals
A trivalent group 14 radical (also known as a trivalent tetrel radical) is a molecule that contains a group 14 element (E = C, Si, Ge, Sn, Pb) with three Trivalent tetrels can also synthesized in a cyclic structure (e.g. Ar3Ge3•).
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A trivalent simple graph without a perfect matching A perfect matching of a simple graph $G$ is a subset $M$ of the set $E$ of edges of $G$ where no two elements of $M$ share a vertex and every vertex of $G$ is incide...
The graph below is an example of such a graph with no perfect matchings. In fact, it is the smallest such graph. This is due to a theorem of Petersen, which states there is always a matching in 3-regular graphs with at most 2 bridges. 
These dopant elements represent trivalent impurities. Other trivalent dopants include indium (In) and gallium (Ga).
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Singular locus of orientable 3-orbifolds Any reference (or any hints if the proof is easy) for the proof that the singular locus of a 3-dimensional orientable orbifold is a trivalent graph with each edge labelled by i...
Yes, it is easy. Use classification of 2-dimensional oriented spherical orbifolds. Edit: every n-dimensional orbifold is locally a cone over a spherical orbifold of dimension n-1. Every spherical 2-dimensional oriented orbifold is either the sphere with two cone points or sphere with three cone poin...
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Phosphoryl group
A phosphoryl group is a trivalent group, consisting of a phosphorus atom (symbol P) and an oxygen atom (symbol O), where the three free valencies are Example of molecules containing that trivalent phosphoryl group are phosphoryl chloride (), methylphosphonyl dichloride () and phosphoramide ().
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en.wikipedia.org
Moses Gomberg
On the basis of his experimental evidence Gomberg concluded that he had discovered the first instance of a persistent radical and trivalent carbon. At the end of his first report of trivalent carbon "On Trivalent Carbon" Gomberg wrote "This work will be continued and I wish to reserve the field for
wikipedia.org
en.wikipedia.org
Alum
Related compounds
Many trivalent metals are capable of forming alums. The possible combinations of univalent cation, trivalent cation, and anion depends on the sizes of the ions.
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Rip Biotech (300119.SZ): Chicken Infectious Rhinitis Trivalent ...
Gelonhui,Feb. 28 | Ruipu Biotech (300119.SZ) announced that according to the "Veterinary Drug Administration Regulations" and "Veterinary Drug Registration Measures", Tianjin Ruipu Biotechnology Co., Ltd. and Tianjin Ruipu Biotechnology Co., Ltd. Airport Economic Division Company recently obtained the "New Veterinary Drug Registration Certificate" issued by the Ministry of ...
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CN102154665A - Trivalent chromium plating solution composite ...
The invention aims at providing a trivalent chromium plating solution composite, preparation and chromium plating process thereof. The plating solution composite comprises main salt, conductive salt, a pH stabilizing agent, a complexing agent, a wetting agent and a displacement agent; and five addition agents of a cylinder opening agent, a stabilizing agent, a bending agent, a modifying agent ...
patents.google.com
Manganiceladonite
Relation to other minerals
Manganiceladonite, as suggested by its name, is a trivalent-manganese-analogue of celadonite.
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CN101967662A - Trivalent chromium electroplate liquid capable of ...
The invention discloses trivalent chromium electroplate liquid capable of forming a black clad layer. Each liter of the trivalent chromium electroplate liquid comprises the following raw materials: a cylinder opening agent, 20 to 150g of stabilizing agent, 10 to 20g of cobalt chloride or manganese chloride, 0.6 to 1.5g of ferric chloride, and 1 to 10g of wetting agent, wherein each liter of ...
patents.google.com
Chromium cycle
Biogeochemical cycle
Terrestrial weathering and river transport
Chromium has two common oxidation states relevant for environmental conditions: trivalent Soluble trivalent chromium is also found in the oceans where complexation with organic ligands occurs.
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Sterically induced reduction
In these cases, adjusting the size of the metal (which is commonly and easily done for the trivalent lanthanide compounds) may fine tune the nature of Sm is a typical and well studied metal due to its unusual stability in a divalent and trivalent state.
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Preparation of zinc nickel plating layer and trivalent chromium ...
The invention discloses preparation of a zinc nickel plating layer and a trivalent chromium passivation process thereof, which is characterized in that the preparation comprises the following steps: firstly performing pretreatment before plating, that is, performing physical polishing of a workpiece by a polishing machine, cleaning the workpiece with an alkaline mixed solution, distilled water ...
patents.google.com