 | |
| Names | |
|---|---|
| Other names Holmium(II) sulfide | |
| Identifiers | |
3D model (JSmol) | |
| |
| |
| Properties | |
| HoS | |
| Molar mass | 196.99 g·mol−1 |
| Appearance | Crystals |
| Density | 8.0 g/cm3 |
| Related compounds | |
Related compounds | Samarium monosulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Holmium monosulfide is a binary inorganic compound of holmium and sulfur with the chemical formula HoS. [1] [2]
Heating stoichiometric amounts of pure substances in an inert atmosphere:
Holmium monosulfide forms crystals of cubic system, space group Fm3m, unit cell parameter a = 0.5465 nm, Z = 4, isomorphous with NaCl. [3]
HoS is an attractive material for potential application in electronic and magnetic recording devices. [4]
Holmium is a chemical element; it has symbol Ho and atomic number 67. It is a rare-earth element and the eleventh member of the lanthanide series. It is a relatively soft, silvery, fairly corrosion-resistant and malleable metal. Like many other lanthanides, holmium is too reactive to be found in native form, as pure holmium slowly forms a yellowish oxide coating when exposed to air. When isolated, holmium is relatively stable in dry air at room temperature. However, it reacts with water and corrodes readily, and also burns in air when heated.
Ammonium hydrosulfide is the chemical compound with the formula [NH4]SH.
Holmium(III) oxide, or holmium oxide is a chemical compound of the rare-earth element holmium and oxygen with the formula Ho2O3. Together with dysprosium(III) oxide (Dy2O3), holmium oxide is one of the most powerfully paramagnetic substances known. The oxide, also called holmia, occurs as a component of the related erbium oxide mineral called erbia. Typically, the oxides of the trivalent lanthanides coexist in nature, and separation of these components requires specialized methods. Holmium oxide is used in making specialty colored glasses. Glass containing holmium oxide and holmium oxide solutions have a series of sharp optical absorption peaks in the visible spectral range. They are therefore traditionally used as a convenient calibration standard for optical spectrophotometers.
Sulfur compounds are chemical compounds formed the element sulfur (S). Common oxidation states of sulfur range from −2 to +6. Sulfur forms stable compounds with all elements except the noble gases.
Copper monosulfide is a chemical compound of copper and sulfur. It was initially thought to occur in nature as the dark indigo blue mineral covellite. However, it was later shown to be rather a cuprous compound, formula Cu+3S(S2). CuS is a moderate conductor of electricity. A black colloidal precipitate of CuS is formed when hydrogen sulfide, H2S, is bubbled through solutions of Cu(II) salts. It is one of a number of binary compounds of copper and sulfur (see copper sulfide for an overview of this subject), and has attracted interest because of its potential uses in catalysis and photovoltaics.
Titanium(II) sulfide (TiS) is an inorganic chemical compound of titanium and sulfur.
Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. Both minerals and synthetic materials comprise these compounds. Some copper sulfides are economically important ores.
Samarium monosulfide is a binary inorganic chemical compound of samarium metal and sulfur with the chemical formula SmS.
Silicon monosulfide is a chemical compound of silicon and sulfur. The chemical formula is SiS. Molecular SiS has been detected at high temperature in the gas phase. The gas phase molecule has an Si-S bondlength of 192.93 pm, this compares to the normal single bond length of 216 pm, and is shorter than the Si=S bond length of around 201 pm reported in an organosilanethione. Historically a pale yellow-red amorphous solid compound has been reported. The behavior of silicon can be contrasted with germanium which forms a stable solid monosulfide.
Holmium phosphide is a binary inorganic compound of holmium and phosphorus with the chemical formula HoP. The compound forms dark crystals and does not dissolve in water.
Neodymium(III) sulfide is a inorganic chemical compound with the formula Nd2S3 composed of a two neodymium atoms in the +3 oxidation state and three sulfur atoms in the -2 oxidation state. Like other rare earth sulfides, neodymium(III) sulfide is used as a high-performance inorganic pigment.
Holmium(III) iodide is an iodide of holmium, with the chemical formula of HoI3. It is used as a component of metal halide lamps.
Cerium monosulfide is a binary inorganic compound of cerium and sulfur with the chemical formula CeS. This is the simplest of cerium sulfides.
Holmium(III) telluride is an inorganic compound, one of the tellurides of holmium, with the chemical formula Ho2Te3.
Neodymium(II) sulfide is a binary inorganic chemical compound of Neodymium metal and sulfur with the chemical formula NdS.
Praseodymium monosulfide is a binary inorganic chemical compound of praseodymium metal and sulfur with the chemical formula PrS.
Lanthanum monosulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula LaS.
Dysprosium monosulfide is a binary inorganic compound of dysprosium and sulfur with the chemical formula DyS.
Gadolinium monosulfide is a binary inorganic compound of gadolinium and sulfur with the chemical formula GdS.
Terbium monosulfide is a binary inorganic compound of holmium and sulfur with the chemical formula TbS.