Neodymium(III)-oxide
Neodymium(III)-oxide
CAS: 1313-97-9;12648-30-5
Molecular Formula: Nd2O3
Neodymium(III)-oxide - Names and Identifiers
| Name | Neodymium(III)-oxide |
| Synonyms | NEODYM OXIDE NEODYMIUM OXIDE Neodymium oxide oxygen(-2) anion Neodymium(Ⅲ) oxide dineodymiumtrioxide NEODYMIUM(III) OXIDE neodymium(+3) cation Neodymium(III)-oxide NeodymiumoxideREObluepowder |
| CAS | 1313-97-9 12648-30-5 |
| EINECS | 215-214-1 |
| InChI | InChI=1/2Nd.3O/rNd2O3/c3-1-5-2-4 |
Neodymium(III)-oxide - Physico-chemical Properties
| Molecular Formula | Nd2O3 |
| Molar Mass | 336.48 |
| Density | 7.24g/mLat 20°C(lit.) |
| Melting Point | 2270 °C |
| Boling Point | 3760℃[at 101 325 Pa] |
| Water Solubility | insoluble |
| Appearance | Blue crystal |
| Specific Gravity | 7.24 |
| Color | Yellow |
| Merck | 14,6450 |
| Storage Condition | no restrictions. |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00011134 |
| Physical and Chemical Properties | Traits light blue powder. melting point 1900 ℃ relative density 7.24 solubility insoluble in water, soluble in acid. |
| Use | Mainly used as glass, ceramic colorants, manufacturing neodymium metal raw materials and strong magnetic neodymium iron boron raw materials |
Neodymium(III)-oxide - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 1 |
| RTECS | QP0185000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28469013 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
Neodymium(III)-oxide - Upstream Downstream Industry
| Raw Materials | Rare earth chlorides Hydrochloric acid |
| Downstream Products | Neodymium atomic absorption standard solution |
Neodymium(III)-oxide - Reference
| Reference Show more | 1. Ma Yuchang, Xing Zhihua, Yang Xin, et al. Study on Anti-gouty Arthritis Activity of Puerarin-Rare Earth Complex [J]. Journal of Harbin University of Commerce (Natural Science Edition), 2018, v.34;No.151(02):14-18. |
Neodymium(III)-oxide - Nature
Open Data Verified Data
blue powder. Easy to moisture, absorb carbon dioxide in the air, insoluble in water, soluble in inorganic acid. d 7. 24; Melting point about 1900 °c. The high-valence oxide of neodymium is generated in the heat energy part in the air.
Last Update：2025-06-10 22:55:16
Neodymium(III)-oxide - Preparation Method
Open Data Verified Data
with rare earth chloride solution as raw material, after extraction, the rare earth mixture is divided into light, medium and heavy three groups of rare earth, and then oxalic acid precipitation, after separation, drying, burning. Or using Nd-Fe-B waste recycling system.
Last Update：2025-06-10 22:55:16
Neodymium(III)-oxide - Introduction
Insoluble in water, easily soluble in inorganic acids, easily affected with moisture, absorb carbon dioxide in the air, and heat in the air to partially generate high-valent oxides of neodymium.
Last Update：2022-10-16 17:13:16
Neodymium(III)-oxide - Application
Open Data Verified Data
It is used as an admixture for high temperature enamel in the ceramic industry and also as an admixture for ceramic capacitors. The aerospace field is used to make alloy materials. Adding 1. 5%~ 2.5% nano neodymium oxide to magnesium or aluminum alloy can improve the high temperature performance, air tightness and corrosion resistance of the alloy. In the medical field, nano-yttrium oxide aluminum garnet laser doped with nano-neodymium oxide is used instead of a scalpel for the removal of a Disinfection wound port. In addition, nano-yttrium aluminum garnet doped with nano-neodymium oxide produces a short-wave laser beam, which is used industrially to weld and cut thin materials with a thickness of 10mm or less.
Last Update：2025-08-19 16:24:40
Neodymium(III)-oxide - Safety
Open Data Verified Data
should be stored in a ventilated, dry place. Should pay attention to moisture, to prevent packaging damage.
Last Update：2025-06-10 22:55:16
Neodymium(III)-oxide - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | nano neodymium oxide is a lavender solid powder, which is easy to be affected with damp, absorbs carbon dioxide in the air, is insoluble in water, is soluble in inorganic acid, has a relative density of 7.24, and has a melting point of about 1900 ℃. the high-valent oxide of neodymium is partially generated by heating energy in the air. The crystal structure of neodymium oxide has three types: cubic, triangular and hexagonal. Compared with traditional neodymium oxide, due to the nano-size structure and surface of neodymium oxide nanoparticles, they show characteristics that conventional materials do not have in magnetism, optics, and electricity. |
| use | neodymium oxide is a rare earth oxide with extremely wide application. It is mainly used in neodymium iron boron (Nd-Fe-B) permanent magnets, televisions, glass coloring, fluorescent materials, laser materials and rubber industrial additives. Neodymium oxide is elegant in color and has a good color change effect. It is also widely used in ceramics, textile dyeing, superconductivity and other high-tech materials, with rapid growth. Mainly used as a colorant for glass and ceramics, a raw material for manufacturing metal neodymium and a raw material for strong magnetic NdFeB Nd-doped yttrium aluminum garnet is used in laser technology. It is also used to make neodymium glass. Due to its excellent absorption of ultraviolet and infrared rays, it is used to make precision instruments. It is the raw material for making metal neodymium and various neodymium alloys and permanent magnet alloys. Can be used as glass purple colorant. Scientific research reagents, biochemical research used as a coloring and magnetic material for TV glass shells, glassware, a raw material for the manufacture of metal neodymium and a raw material for strong magnetic neodymium iron boron. |
| application | the application and research of neodymium oxide in the field of catalysis are also gradually expanding, such as catalyzing the synthesis of carboxylic acid esters, amination of fatty alcohols, etc. Nano neodymium oxide has good catalytic activity. As a rare earth nanomaterial, nano-neodymium oxide can be added to magnesium or aluminum alloy to improve the strength and corrosion resistance of magnesium or aluminum alloy in high temperature environment. This high-performance material is widely used in the aerospace industry. In terms of medical treatment, nano-neodymium oxide can be used to make nano-yttrium oxide aluminum garnet lasers. This laser can generate short-wave lasers, which can replace ordinary scalpels in special occasions and have a very good effect. |
| Preparation | Chemical precipitation method is the simplest and most extensive method for preparing nano-neodymium oxide particles in liquid phase. It uses various precipitants and raw materials containing neodymium ions to generate insoluble carbonate, oxalate precursor precipitation, etc. through precipitation reaction, and then precipitate and filter the generated precursor, and finally calcine to obtain nanoscale neodymium oxide powder. The most commonly used methods are coprecipitation, homogeneous precipitation, complexation precipitation, etc. The precipitation process is simple, easy to operate, and has low equipment requirements. It is currently widely used in laboratories and industry to prepare nano-neodymium oxide powder materials. But at the same time, there is also the preparation process of the precursor particles are easy to agglomerate, resulting in the final production of neodymium oxide particles larger particle size, and the post-treatment process is troublesome, there are impurities pollution and other shortcomings. |
| toxicity | see cerium oxide products. |
| production method | extraction method uses rare earth chloride solution as raw material, extracts with P204-kerosene-HCl-RCl3 system, divides the rare earth mixture into three groups: light, medium and heavy rare earth, then precipitates with oxalic acid, separates, dries and burns, and produces neodymium oxide. Its Nd2(C2O4)3 → Nd2O3 3CO2 3CO NdFeB waste recycling method adds 1:4 H2SO4 to the Nd2 iron boron raw material (containing neodymium 30.02%) after alkaline washing and descaling until no bubbles are generated. The liquid-solid ratio is controlled to 4:l, the end pH is 1, and the filtered filtrate is added with 2 mol/L NaH2PO4 until Nd2(SO4)3 is completely generated by precipitation. At this time, the pH value is 2.3, however, Fe2 + does not produce precipitation. The precipitate was filtered and washed with 0.1 mol/LH2SO4 to remove iron. The precipitate is heated to 140 ℃ with 12 mol/L NaOH solution to generate hydroxide, washed with water to remove PH43-, and then neutralized, dissolved, filtered, concentrated and crystallized into neodymium sulfate crystals with high purity at 1:4. Then precipitate with (NH4)2CO3, filter, wash and dry, calcinate at 80 ℃ for 1h to obtain Nd2O3 pure product with content ≥ 99.0%. The total recovery rate of neodymium is more than 90.00%. Its 2Nd 3H2SO4 → Nd2(SO4)3 3H2 ↑ Nd2(SO4)3 6NaH2PO4 → 2Nd(H2PO4)3 ↓ 3 Na2SO4Nd2(H2PO4)3 9NaOH → Nd(OH)3 ↓ 3Na3PO4 6 H2O2Nd(OH)3 3H2SO4 → Nd2(SO4)3 6 H2ONd2(SO4)3 3(NH4)2CO3 → Nd2(CO3)3(NH4) |
Last Update：2024-04-10 22:29:15
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View History
Neodymium(III)-oxide
o-Tolyhdrazine hydrochloride
4-二氯-D-苯丙氨酸
2-Amino-3-hydroxymethyl pyridine
鲸蜡硬脂醇乙基己酸酯
甲醇中2-氯甲苯标准品
水系聚氨酯抗静电剂
2-甲基-3-溴苯胺
o-Tolyhdrazine hydrochloride
4-二氯-D-苯丙氨酸
2-Amino-3-hydroxymethyl pyridine
鲸蜡硬脂醇乙基己酸酯
甲醇中2-氯甲苯标准品
水系聚氨酯抗静电剂
2-甲基-3-溴苯胺
Raw Materials for Neodymium(III)-oxide
Downstream Products for Neodymium(III)-oxide