Neodymium(III) carbonate is an

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

, a salt, where

neodymium Neodymium is a chemical element; it has Symbol (chemistry), symbol Nd and atomic number 60. It is the fourth member of the lanthanide series and is considered to be one of the rare-earth element, rare-earth metals. It is a hard (physics), hard, sli ...

is in the +3 oxidation state and the

carbonate A carbonate is a salt of carbonic acid, (), characterized by the presence of the carbonate ion, a polyatomic ion with the formula . The word "carbonate" may also refer to a carbonate ester, an organic compound containing the carbonate group ...

ion has charge −2.See https://pubchem.ncbi.nlm.nih.gov/compound/Neodymium_III_-carbonate-hydrate It has a

chemical formula A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as pare ...

of Nd₂(CO₃)₃. The

anhydrous A substance is anhydrous if it contains no water. Many processes in chemistry can be impeded by the presence of water; therefore, it is important that water-free reagents and techniques are used. In practice, however, it is very difficult to achie ...

form is purple-red,Rare earth elements: Main volume, Phần 3
(Leopold Gmelin; Verlag Chemie, 1994), page 22; 68. Retrieved 4 February 2021. while the octahydrate is a pink solid.Handbook…
(Pierre Villars, Karin Cenzual, Roman Gladyshevskii; Walter de Gruyter GmbH & Co KG, 24 thg 7, 2017 - 1970 pages), page 999. Retrieved 4 February 2021. Both of these salts are insoluble in water.

Preparation

Neodymium(III) carbonate can be created by the reaction between

neodymium(III) hydroxide Neodymium(III) hydroxide is an insoluble inorganic compound with the chemical formula Nd(OH)3. Preparation Neodymium(III) nitrate and ammonia water will react to produce neodymium(III) hydroxide:《无机化合物制备手册》. 朱文祥主� ...

and

carbon dioxide Carbon dioxide is a chemical compound with the chemical formula . It is made up of molecules that each have one carbon atom covalent bond, covalently double bonded to two oxygen atoms. It is found in a gas state at room temperature and at norma ...

: :2Nd(OH)₃ + 3CO₂ → Nd₂(CO₃)₃ + 3H₂O Neodymium(III) carbonate can also be created by passing carbon dioxide under pressure through a solution of

neodymium(III) chloride Neodymium(III) chloride or neodymium trichloride is a chemical compound of neodymium and chlorine with the formula NdCl3. This anhydrous compound is a mauve-colored solid that rapidly absorbs water on exposure to air to form a purple-colored hex ...

containing

aniline Aniline (From , meaning ' indigo shrub', and ''-ine'' indicating a derived substance) is an organic compound with the formula . Consisting of a phenyl group () attached to an amino group (), aniline is the simplest aromatic amine. It is an in ...

: :2NdCl₃ + 3CO₂ + 6C₆H₂NH₂ + H₂O → Nd₂(CO₃)₃ + 6C_6H_5NH_2·HCl It can also be obtained from the

hydrolysis Hydrolysis (; ) is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution reaction, substitution, elimination reaction, elimination, and solvation reactions in which water ...

of neodymium(III) chloroacetate:《无机化学丛书》. 第七卷钪稀土元素. 易宪武黄春晖等编.科学出版社. tr. 174, 碳酸盐. :2Nd(C₂Cl₃O₂)₃ + 3H₂O → Nd₂(CO₃)₃ + 6CHCl₃ + 3CO₂ Another way to obtain neodymium(III) carbonate is by reacting neodymium(III) chloride with

ammonium bicarbonate Ammonium bicarbonate is an inorganic compound with formula (NH4)HCO3. The compound has many names, reflecting its long history. Chemically speaking, it is the bicarbonate salt of the ammonium ion. It is a colourless solid that degrades readily to ...

in water.

Properties

Chemical properties

Neodymium(III) carbonate dissolves in

acid An acid is a molecule or ion capable of either donating a proton (i.e. Hydron, hydrogen cation, H+), known as a Brønsted–Lowry acid–base theory, Brønsted–Lowry acid, or forming a covalent bond with an electron pair, known as a Lewis ...

s and releases

: :Nd₂(CO₃)₃ + 6H⁺ → 2Nd³⁺ + 3H₂O + 3CO₂↑ Neodymium(III) carbonate can react with an

to produce many

salts： :H⁺ + Nd₂(CO₃)₃ → Nd + H₂O + CO₂ For example, to create

neodymium acetate Neodymium(III) acetate is an inorganic salt composed of a neodymium atom trication and three acetate groups as anions where neodymium exhibits the +3 oxidation state. It has a chemical formula of Nd(CH3COO)3 although it can be informally referre ...

with neodymium(III) carbonate: :6CH₃COOH + 2Nd₂(CO₃)₃ → 2Nd(CH₃COO)₃ + 3H₂O + 3CO₂ Neodymium(III) carbonate can form complexes with

ammonium carbonate Ammonium carbonate is a chemical compound with the chemical formula . It is an ammonium salt of carbonic acid. It is composed of ammonium cations and carbonate anions . Since ammonium carbonate readily degrades to gaseous ammonia and carbon diox ...

sodium carbonate Sodium carbonate (also known as washing soda, soda ash, sal soda, and soda crystals) is the inorganic compound with the formula and its various hydrates. All forms are white, odourless, water-soluble salts that yield alkaline solutions in water ...

and

potassium carbonate Potassium carbonate is the inorganic compound with the formula . It is a white salt, which is soluble in water and forms a strongly alkaline solution. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used ...

and many other salts, which explains their greater

solubility In chemistry, solubility is the ability of a chemical substance, substance, the solute, to form a solution (chemistry), solution with another substance, the solvent. Insolubility is the opposite property, the inability of the solute to form su ...

aqueous solution An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, also known as sodium chloride (NaCl), in water ...

s than in

distilled water Distilled water is water that has been purified by boiling it into vapor then condensing it back into liquid in a separate container. Impurities in the original water that do not boil below or near the boiling point of water remain in the origin ...

. It can easily be converted into other neodymium compounds, such as

neodymium(III) oxide Neodymium(III) oxide or neodymium sesquioxide is the chemical compound composed of neodymium and oxygen with the formula Nd2O3. It forms very light grayish-blue hexagonal crystals. The rare-earth mixture didymium, previously believed to be an e ...

when heated. It can also form compounds with

hydrazine Hydrazine is an inorganic compound with the chemical formula . It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour. Hydrazine is highly hazardous unless handled in solution as, for example, hydraz ...

, such as Nd₂(CO₃)₃·12N₂H₄·4H₂O which is a transparaent crystal that is slightly soluble in water but insoluble in

benzene Benzene is an Organic compound, organic chemical compound with the Chemical formula#Molecular formula, molecular formula C6H6. The benzene molecule is composed of six carbon atoms joined in a planar hexagonal Ring (chemistry), ring with one hyd ...

, d_20°C = 1.96 g/cm³.Uchenye zapiski: Serii︠a︡ khimicheskikh nauk
(S.M. Kirov adyna Azărbai̐jan Dȯvlăt Universiteti; 1975). Retrieved 7 February 2021.

Physical properties

Neodymium(III) carbonate forms crystals and has a crystalline hydrate composition of Nd₂(CO₃)₃·''n'' H₂O, where ''n'' = 2.5 and 8. It doesn't dissolve in water.

Applications

Neodymium carbonate can be used for lasers, glass coloring and tinting, and dielectrics.

References