单词 | 钾钠 |
释义 | 〔vanadium〕A bright white, soft, ductile metallic element found in several minerals, notably vanadinite and carnotite, having good structural strength and used in rust-resistant high-speed tools, as a carbon stabilizer in some steels, as a titanium-steel bonding agent, and as a catalyst. Atomic number 23; atomic weight 50.942; melting point 1,890°C; boiling point 3,000°C; specific gravity 6.11; valence 2, 3, 4, 5. See table at element 钒:存在于多种矿物质中,特别是钒铅矿和钒钾钠矿中的一种亮白色、柔软且可延展的金属元素,具有良好的结构强度,用于防锈的高速工具,例如在某些金属中的炭稳定剂,作为钛金属的黏结剂,以及作为催化剂。原子序数23;原子量50.942;熔点1,890°C;沸点3,000°C;比重6.11;原子价2,3,4,5 参见 element |
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