니오븀(II)산화물

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P271：옥외 또는 환기가 잘 되는 곳에서만 취급하시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

니오븀(II)산화물 화학적 특성, 용도, 생산

• 화학적 성질

  gray metallic appearance; can be obtained by reduction of Nb2O5 in H2 at 1300°C–1700°C; -100 mesh with 99.9% purity; cub, a=0.42108nm; enthalpy of fusion 85.00kJ/mol [CRC10] [CER91] [KIR81]

• 제조 방법

  A mixture of NbO2 and Nb metal is pulverized to as small a size as possible and then compressed into small pellets which are heated for 10-20 minutes at 1600-1700°C in an atmosphere of very pure Ar or in a high vacuum. The best support for these pellets is Nb sheet; however, the pellets should touch this sheet only at a very few points.

니오븀(II)산화물 공급 업체

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