| 词条 | Neodymium(III) oxide |
| 释义 |
| Watchedfields = changed | verifiedrevid = 439303620 | Name = Neodymium(III) oxide | ImageFile = La2O3structure.jpg | ImageSize = | ImageName = | ImageFile2 = Neodymium oxide 170g.jpg | IUPACName = Neodymium(III) oxide | OtherNames = Neodymium oxide, Neodymium sesquioxide |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|CAS}} | CASNo = 1313-97-9 | PubChem = | RTECS = |Section2={{Chembox Properties | Formula = Nd2O3 | MolarMass = 336.48 g/mol | Appearance = light bluish gray hexagonal crystals | Density = 7.24 g/cm3 | Solubility = .0003 g/100 mL (75 °C) | MeltingPtC = 2233 | BoilingPtC = 3760 | BoilingPt_ref = [1] | MagSus = +10,200.0·10−6 cm3/mol |Section3={{Chembox Structure | CrystalStruct = Hexagonal, hP5 | SpaceGroup = P-3m1, No. 164 |Section4={{Chembox Thermochemistry | DeltaHf = −1807.9 kJ·mol−1 | DeltaHc = | Entropy = 158.6 J·mol−1·K−1 | HeatCapacity = 111.3 J·mol−1·K−1[1] |Section7={{Chembox Hazards | EUClass = | RPhrases = | SPhrases = | FlashPt = |Section8={{Chembox Related | OtherAnions = Neodymium(II) chloride Neodymium(III) chloride | OtherCations = Uranium(VI) oxide Praseodymium(III) oxide Promethium(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.[1] The rare-earth mixture didymium, previously believed to be an element, partially consists of neodymium(III) oxide.[2] UsesNeodymium(III) oxide is used to dope glass, including sunglasses, to make solid-state lasers, and to color glasses and enamels.[3] Neodymium-doped glass turns purple due to the absorbance of yellow and green light, and is used in welding goggles.[4] Some neodymium-doped glass is dichroic; that is, it changes color depending on the lighting. One kind of glass named for the mineral alexandrite appears blue in sunlight and red in artificial light.[5] About 7000 tonnes of neodymium(III) oxide are produced worldwide each year. Neodymium(III) oxide is also used as a polymerization catalyst.[4] ReactionsNeodymium(III) oxide is formed when neodymium(III) nitride or neodymium(III) hydroxide is burned in air.[6] References1. ^1 2 {{Citation| last = Lide| first = David R.| year = 1998| title = Handbook of Chemistry and Physics| edition = 87| publication-place = Boca Raton, FL| publisher = CRC Press| isbn = 0-8493-0594-2| pages = 471; 552}} {{Authority control}}{{DEFAULTSORT:Neodymium(Iii) Oxide}}{{neodymium compounds}}{{oxides}}2. ^{{Citation| last = Brady| first = George Stuart | author-link = | last2 = Clauser| first2 = Henry R.| author2-link =| last3 = Vaccari| first3 = John A.| author3-link =| publication-date =| date =| year = 2002| title = Materials Handbook| edition = 15| volume = | series =| publication-place = New York| place = | publisher = McGraw-Hill Professional| id =| isbn = 978-0-07-136076-0| doi =| oclc =| pages = 779| url = https://books.google.com/books?id=vIhvSQLhhMEC&pg=PA779&dq=%22Neodymium+oxide%22| accessdate = 2009-03-18}} 3. ^{{Citation| last = Eagleson| first = Mary| author-link = | last2 = | first2 = | author2-link =| last3 = | first3 = | author3-link =| publication-date =| date =| year = 1994| title = Concise Encyclopedia of Chemistry| edition =| volume = | series =| publication-place = | place = | publisher = Springer| id =| isbn = 978-3-11-011451-5| doi =| oclc =| pages = 680| url = https://books.google.com/books?id=Owuv-c9L_IMC&pg=PA680&dq=%22Neodymium(III)+oxide%22| accessdate = 2009-03-18}} 4. ^1 {{Citation| last = Emsley| first = John | author-link = | last2 = | first2 = | author2-link =| last3 = | first3 = | author3-link =| publication-date =| date =| year = 2003| title = Nature's Building Blocks| edition =| volume = | series =| publication-place = | place = | publisher = Oxford University Press| id =| isbn = 978-0-19-850340-8| doi =| oclc =| pages = 268–9| url = https://books.google.com/books?id=j-Xu07p3cKwC&pg=PA268&dq=%22Neodymium+oxide%22| accessdate = 2009-03-18}} 5. ^{{Citation| last = Bray| first = Charles| author-link = | last2 = | first2 = | author2-link =| last3 = | first3 = | author3-link =| publication-date =| date =| year = 2001| title = Dictionary of Glass| edition = 2| volume = | series =| publication-place = | place = | publisher = University of Pennsylvania Press| id =| isbn = 978-0-8122-3619-4| doi =| oclc =| pages = 103| url = https://books.google.com/books?id=KbZkxDyeG18C&pg=PA102&dq=%22Neodymium+oxide%22| accessdate = 2009-03-18}} 6. ^{{Citation| last = Spencer| first = James Frederick | author-link = | last2 = | first2 = | author2-link =| last3 = | first3 = | author3-link =| publication-date =| date =| year = 1919| title = The Metals of the Rare Earths| edition =| volume = | series =| publication-place = London| place = | publisher = Longmans, Green, and Co| id =| isbn = | doi =| oclc =| pages = 115| url = https://books.google.com/books?id=W2zxN_FLQm8C&pg=PA115&dq=%22Neodymium+oxide%22| accessdate = 2009-03-18}} 3 : Neodymium compounds|Oxides|Sesquioxides |
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