Identifiers | |
---|---|
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.036.816 |
EC Number |
|
PubChem CID | |
| |
| |
Properties | |
Nd(OH)3 | |
Molar mass | 195.266 |
Appearance | rose solid [1] |
Related compounds | |
Other anions | neodymium(III) oxide |
Other cations | praseodymium(III) hydroxide samarium(III) hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Neodymium(III) hydroxide is an insoluble inorganic compound with the chemical formula Nd(OH)3. [2] [3]
Neodymium(III) nitrate and ammonia water will react to produce neodymium(III) hydroxide [4]
If the amount of Nd(NO3)3 is 40g/L, the amount of ammonia water needed is 0.50 mol/L. The ammonia water is mixed into the Nd(NO3)3 solution at the speed of 1.5mL/min, and polyethylene glycol is used to control pH. The process will produce neodymium(III) hydroxide powder with grain size ≤1μm. [5]
Neodymium(III) hydroxide can react with acid and produce neodymium salts:
For example, to create neodymium acetate with neodymium(III) hydroxide:
Praseodymium(IV) oxide is an inorganic compound with chemical formula PrO2.
Terbium(III) fluoride is an inorganic compound with chemical formula TbF3. It is hard to dissolve in water. It can be produced by reacting terbium(III) carbonate and 40% hydrofluoric acid at 40°C.
Thorium(IV) hydroxide is an inorganic compound with a chemical formula Th(OH)4.
Praseodymium(III) hydroxide is an inorganic compound with a chemical formula Pr(OH)3.
Samarium(III) hydroxide is an inorganic compound with chemical formula Sm(OH)3.
Thulium(II) chloride is an inorganic compound with the chemical formula TmCl2.
Europium(III) hydroxide is an inorganic compound with a chemical formula Eu(OH)3.
Erbium(III) hydroxide is an inorganic compound with chemical formula Er(OH)3.
Dysprosium(III) hydroxide is an inorganic compound with the chemical formula Dy(OH)3.
Yttrium(III) hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH)3.
Thulium(III) hydroxide is an inorganic compound with the chemical formula Tm(OH)3.
Terbium(III) hydroxide is an inorganic compound with chemical formula Tb(OH)3.
Neodymium compounds are compounds formed by the lanthanide metal neodymium (Nd). In these compounds, neodymium generally exhibits the +3 oxidation state, such as NdCl3, Nd2(SO4)3 and Nd(CH3COO)3. Compounds with neodymium in the +2 oxidation state are also known, such as NdCl2 and NdI2. Some neodymium compounds have colors that vary based upon the type of lighting.
Neodymium(III) carbonate is an inorganic compound, a salt, where neodymium is in the +3 oxidation state and the carbonate ion is in the -2 oxidation state. It has a chemical formula of Nd2(CO3)3. The anhydrous form is purple-red, while the octahydrate is a pink solid. Both of these salts are insoluble in water.
Praseodymium(III) carbonate is an inorganic compound, with a chemical formula of Pr2(CO3)3. The anhydrous form is olive green, and many of its hydrates such as heptahydrate and octahydrate are known. They are all insoluble in water.
Europium compounds are compounds formed by the lanthanide metal europium (Eu). In these compounds, europium generally exhibits the +3 oxidation state, such as EuCl3, Eu(NO3)3 and Eu(CH3COO)3. Compounds with europium in the +2 oxidation state are also known. The +2 ion of europium is the most stable divalent ion of lanthanide metals in aqueous solution. Many europium compounds fluoresce under ultraviolet light due to the excitation of electrons to higher energy levels. Lipophilic europium complexes often feature acetylacetonate-like ligands, e.g., Eufod.
Terbium compounds are compounds formed by the lanthanide metal terbium (Tb). Terbium generally exhibits the +3 oxidation state in these compounds, such as in TbCl3, Tb(NO3)3 and Tb(CH3COO)3. Compounds with terbium in the +4 oxidation state are also known, such as TbO2 and BaTbF6. Terbium can also form compounds in the 0, +1 and +2 oxidation states.
Cerium acetate is an inorganic compound with the chemical formula of Ce(CH3COO)3. It is a white powder that is soluble in water. Its 1.5 hydrate loses water at 133°C to obtain an amorphous anhydrous form, and the amorphous phase changes to crystal at 212°C, and phase changes again at 286°C.
Europium(II) hydroxide is an inorganic compound, with the chemical formula of Eu(OH)2. It can exist as the dihydrate Eu(OH)2·H2O.
Holmium(III) hydroxide is an inorganic compound with the chemical formula Ho(OH)3.