Chemistry

Ferricyanide – a red crystalline material

Ferricyanide – a red crystalline material

Ferricyanide is the anion [Fe(CN)6]3-. It is the complexion or any of various salts containing it, used in making blue pigments. It is also called hexacyanoferrate(III) and in rare, but systematic nomenclature, hexacyanidoferrate(III). It is a salt of ferricyanic acid containing the trivalent neg.....

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Ferrocyanide – an iron coordination entity

Ferrocyanide – an iron coordination entity

Ferrocyanide is an iron coordination entity. It is the name of the anion [Fe(CN)6]4-. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide, which has the formula K4Fe(CN)6. [Fe(CN)6]4- is a diamagnetic species, featuring low-spin iro.....

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Potassium ferrocyanide – an inorganic compound

Potassium ferrocyanide – an inorganic compound

Potassium ferrocyanide is the inorganic compound with the formula K4[Fe(CN)6]·3H2O. It is also known as yellow potash prussiate, a yellow crystal. It is the potassium salt of the coordination complex [Fe(CN)6]4-. This salt forms lemon-yellow monoclinic crystals. It was made with wool or horn cli.....

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Xenon difluoride – a powerful fluorinating agent

Xenon difluoride – a powerful fluorinating agent

Xenon difluoride is a powerful fluorinating agent with the chemical formula XeF2, and one of the most stable xenon compounds. It was considered to be a possible convenient replacement for elemental fluorine especially in addition to reactions to a double bond. Like most covalent inorganic fluorid.....

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Diatomic Bromine – a red-brown liquid

Diatomic Bromine – a red-brown liquid

Diatomic Bromine is a molecule formed when two bromine atoms combine together. It is a dark reddish-brown fuming liquid with a pungent odor. Bromine (Br2) is a red-brown liquid at ordinary temperature. It is very volatile. It is denser than water and soluble in water. Bromine was discovered by Fr.....

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Phenyl group – a cyclic group of atoms

Phenyl group – a cyclic group of atoms

In organic chemistry, a phenyl group is a cyclic group of atoms with the formula C6H5. It is also referred to as aryl phenols, which are compounds composed of a phenolic group connected directly to another aromatic ring. Phenyl groups are closely related to benzene and can be viewed as a benzene .....

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Phosphorus tribromide – an inorganic colorless liquid

Phosphorus tribromide – an inorganic colorless liquid

Phosphorus tribromide is a colourless liquid with the formula PBr3. It is an inorganic colorless liquid. It appears as a colorless fuming liquid with a pungent odor. The liquid fumes in moist air due to hydrolysis and has a penetrating odour. It is a corrosive, fuming, colorless liquid with penet.....

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Phosphorus trichloride – an inorganic compound

Phosphorus trichloride – an inorganic compound

Phosphorus trichloride is an essential raw material in the production of oxyphosphorus compounds for commercial use. It is an inorganic compound with the chemical formula PCl3. It is produced by the reaction of yellow phosphorus and chloride. A colorless liquid when pure, it is an important indus.....

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Phosphorus trifluoride – a colorless and odorless gas

Phosphorus trifluoride – a colorless and odorless gas

Phosphorus trifluoride (PF3), is a colorless and odorless gas. It appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. It is highly toxic and reacts slowly with water. Its main use is as a ligand in metal complexes. As a .....

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Diphosphorus tetraiodide – an orange crystalline solid

Diphosphorus tetraiodide – an orange crystalline solid

Diphosphorus tetraiodide is an orange crystalline solid with the formula P2I4. It is an orange crystalline solid, and a versatile reducing agent. It has been used as a reducing agent in organic chemistry. It consists of two phosphorus atoms in the oxidation state +2, which via a single bond conne.....

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Phosphorus triiodide – a red solid unstable chemical inorganic compound

Phosphorus triiodide – a red solid unstable chemical inorganic compound

Phosphorus triiodide is a red solid unstable chemical compound with the formula PI3. It is an inorganic compound with the formula PI3. It is a trihalide of phosphorus that can be used as a deactivator and a deoxygenating agent. A red solid, it is a common misconception that PI3 is too unstable to.....

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Piranha solution – a solution of Caro’s acid

Piranha solution – a solution of Caro’s acid

Piranha solution is a popular name for a solution of Caro’s acid, which is usually prepared by reacting sulfuric acid and hydrogen peroxide; it is used to clean organic residues from glassware or other acid-resistant materials. It is also known as piranha etch, is a mixture of sulfuric acid.....

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