Hexachloroplatinate
Encyclopedia
Platinum
Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina del Pinto, which is literally translated into "little silver of the Pinto River." It is a dense, malleable, ductile, precious, gray-white transition metal...
and chloride
Chloride
The chloride ion is formed when the element chlorine, a halogen, picks up one electron to form an anion Cl−. The salts of hydrochloric acid HCl contain chloride ions and can also be called chlorides. The chloride ion, and its salts such as sodium chloride, are very soluble in water...
ion
Ion
An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge. The name was given by physicist Michael Faraday for the substances that allow a current to pass between electrodes in a...
s. Compounds with the hexachloroplatinate anion are not very soluble
Solubility
Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a homogeneous solution of the solute in the solvent. The solubility of a substance fundamentally depends on the used solvent as well as on...
.
Chemical compounds containing the hexachloroplatinate anion include:
- Chloroplatinic acid (or dihydrogen hexachloroplatinate), H2PtCl6
- Ammonium hexachloroplatinateAmmonium hexachloroplatinateAmmonium hexachloroplatinate, also known as ammonium chloroplatinate, is a chemical compound with the formula [NH4]2[PtCl6]. It is a rare example of a soluble platinum salt that is not hygroscopic. It forms intensely yellow solutions in water...
, (NH3)2PtCl6 - Potassium hexachloroplatinatePotassium hexachloroplatinatePotassium hexachloroplatinate, an inorganic compound, is an example of a comparatively insoluble potassium salt.The precipitation of this compound from solutions of hexachloroplatinic acid was formerly used for the determination of potassium by gravimetry....
, K2PtCl6 - Sodium hexachloroplatinateSodium hexachloroplatinateSodium hexachloroplatinate, the sodium salt of hexachloroplatinic acid, is an inorganic compound with the chemical formula Na2PtCl6, consisting of the sodium cation and the hexachloroplatinate anion....
, Na2PtCl6
Related compounds/anions
- The unstable hexachloropalladic acid (H2PdCl6)
- Hexachloropalladate ([PdCl6]2-)