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NTIS 바로가기한국산업보건학회지 = Journal of Korean Society of Occupational and Environmental Hygiene, v.26 no.3, 2016년, pp.237 - 252
신서호 (안전보건공단 산업안전보건연구원 화학물질독성연구실) , 임경택 (안전보건공단 산업안전보건연구원 화학물질독성연구실) , 김종춘 (전남대학교 수의과대학)
Objectives: This study was conducted in order to improve the current understanding of rare earths(RE) and to provide supporting data for establishing occupational health policies by reviewing the toxicological data and issues caused by the use of RE compounds in various fields. Methods: To evaluate ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
희토류 원소란 무엇인가? | 희토류 원소(Rare earth elements)는 란탄부터 루테튬까지의 란타넘족 15개 및 스칸듐과 이트륨을 포함한 17개의 화학원소의 통칭으로 물리화학적으로 유사한 성질을 가진다(Hirano & Suzuki, 1996). 이중에서도 원자량, 물리화학적 성질에 따라 경(輕)희토류(란탄, 세륨, 프라세오디뮴, 네오디뮴), 중(中)희토류 (프로메튬, 사마륨, 유로퓸, 가돌리늄), 중(重)희토류 (테르븀, 디스프로슘, 홀뮴, 에르븀, 툴륨, 이테르븀, 루테튬), 비(非)란탄계(스칸듐, 이트륨)로 나뉜다. | |
희토류 원소를 구분하면 어떤 종류가 있는가? | 희토류 원소(Rare earth elements)는 란탄부터 루테튬까지의 란타넘족 15개 및 스칸듐과 이트륨을 포함한 17개의 화학원소의 통칭으로 물리화학적으로 유사한 성질을 가진다(Hirano & Suzuki, 1996). 이중에서도 원자량, 물리화학적 성질에 따라 경(輕)희토류(란탄, 세륨, 프라세오디뮴, 네오디뮴), 중(中)희토류 (프로메튬, 사마륨, 유로퓸, 가돌리늄), 중(重)희토류 (테르븀, 디스프로슘, 홀뮴, 에르븀, 툴륨, 이테르븀, 루테튬), 비(非)란탄계(스칸듐, 이트륨)로 나뉜다. 프로메튬을 제외하면 희토류는 지각에 할로겐화물, 탄산염, 산화물, 인산염 및 규산염의 형태로 상대적으로 풍부하게 존재하나 단일 금속으로 집중되어 있지는 않다. | |
희토류 및 관련 화합물의 고유한 성질을 이용하여 어떤 산업분야에서 활용되고 있는가? | 지난 10년간 신소재의 개발에 호응하여 희토류 및 관련 화합물들은 그 사용량이 증가하고 있으며 화학적ㆍ전기적ㆍ자성적ㆍ발광적ㆍ방사성 차폐 등의 독특한 자체의 고유한 성질을 이용하여 현재 자성재, 촉매재, 배터리, 연마재, 합금재, 형광재 등 다양한 산업분야에서 활용되고 있다. 또한, 희토류는 에너지 생산ㆍ저감ㆍ효율적 측면으로 스마트폰 등 모바일기기의 부품소재, 컴퓨터 하드 디스크 드라이브, 하이 브리드 및 전기 자동차, 디스플레이용 형광소재, 이 차전지, 풍력터빈 등에도 활용되어 첨단산업의 비타민으로 불리우고 있다. |
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