산화 네오디뮴

산화 네오디뮴 속성

산화 네오디뮴 MSDS

Neodymium(III) oxide

산화 네오디뮴 C화학적 특성, 용도, 생산

화학적 성질

Neodymium Oxide, Nd2O3 is a blue-grey powder that is composed of the rare earth neodymium and oxygen. hygroscopic; absorbs atmospheric CO2; hexagonal; has slightly red fluorescence. Water insoluble, soluble in acids. It has special properties that make it very useful to the glass and ceramics industries. Neodymium Oxide gives a good aqua color in most glaze bases at 1-2%. At 4-7% it gives a pleasant lavender/grape color that appears as a different color under different artificial light sources. It is very strongly affected by iron, particularly in oxidation, giving a reliable perfect neutral transparent gray. Avoid trace iron impurities to achieve the brightest blue and lavender colors.

물리적 성질

Blue powder; hexagonal crystals; fluoresces red; density 7.24 g/cm³; melts around 1,900°C; practically insoluble in water, 30 mg/L at 75°C; dissolves in acids.

용도

Neodymium oxide (Nd2O3) is a light-blue powder used to color glass and as a pigment for ceramics. It is also used to make color TV tubes.

생산 방법

Neodymium oxide is produced from the two principal rare earth minerals, monazite, and bastnasite. The oxide is obtained as an intermediate in the recovery of neodymium metal (See Neodymium).
The oxide also may be formed by thermal dissociation of neodymium oxalate, hydroxide or carbonate:
Nd₂(C₂O₄)₃ → Nd₂O₃ + 6CO₂
2Nd(OH)₃ → Nd₂O₃ + 3H₂O
Nd₂(CO₃)₃ → Nd₂O₃ + 3CO₂.

화학 반응

The anhydrous oxide absorbs moisture from the air at ambient temperatures forming hydrated oxide. The oxide also absorbs carbon dioxide from air, forming neodymium carbonate.
Neodymium oxide dissolves in strong mineral acids forming corresponding neodymium salts:
Nd2O3 + 3H2SO4 → Nd2(SO4)3 + 3H2O
Reactions with acetic and other organic acids produce corresponding salts. When heated with ammonium chloride at 300 to 400°C, the oxide converts to chloride liberating ammonia and water:
Nd2O3 + 6NH4Cl → 2NdCl3 + 6NH3 + 3H2O
When heated with hydrogen fluoride, the product is neodymium fluoride:
Nd2O3 + 6HF → 2NdF3 + 3H2O
The oxide is reduced to neodymium metal when heated with hydrogen, carbon monoxide, or other reducing agents.

Toxicology

Neodymium oxide is belong to a rare earth metal. These metals are moderately to highly toxic. The symptoms of toxicity of the rare earth elements include writhing, ataxia, labored respiration, walking on toes with arched back and sedation.

Safety Profile

Low toxicity by ingestion.

Purification Methods

Dissolve it in HClO4, precipitate it as the oxalate with doubly recrystallised oxalic acid, wash it free of soluble impurities, dry it at room temperature and ignite it in a platinum crucible at higher than 850o in a stream of oxygen. It is a blue powder. [Tobias & Garrett J Am Chem Soc 80 3532 1958.]

참고 문헌

https://en.wikipedia.org/wiki/Neodymium#Neodymium_glass_for_other_applications
https://en.wikipedia.org/wiki/Neodymium(III)_oxide
https://books.google.kg/books?id=KbZkxDyeG18C&pg=PA102&dq=%22Neodymium+oxide%22&redir_esc=y#v=onepage&q=%22Neodymium%20oxide%22&f=false

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산화 네오디뮴 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Zhuoer Chemical Co., Ltd	02120970332; +8613524231522	sales@zhuoerchem.com	China	3005	58
CHENGDU BEYOND CHEMICAL CO.,LTD.	+86-2886084545 +86-18608044545	info@beyondchem.com	China	54	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12470	58
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Hebei Saisier Technology Co., LTD	+86-18400010335 +86-18034520335	admin@hbsaisier.cn	China	945	58
Yujiang Chemical (Shandong) Co.,Ltd.	+86-17736087130 +86-18633844644	catherine@yjchem.com.cn	China	714	58
Hebei Longbang Technology Co., LTD	+86-18032476855 +86-18032476855	admin@hblongbang.com	China	930	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21687	55
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3012	60
Shanghai Zheyan Biotech Co., Ltd.	18017610038	zheyansh@163.com	CHINA	3620	58

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