499811
锂
granular, 99% trace metals basis
别名:
锂元素, 锂原子
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关于此项目
线性分子式:
Li
化学文摘社编号:
分子量:
6.94
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12141803
EC Number:
231-102-5
MDL number:
InChI key
WHXSMMKQMYFTQS-UHFFFAOYSA-N
InChI
1S/Li
SMILES string
[Li]
assay
99% trace metals basis
form
granular
reaction suitability
reagent type: reductant
resistivity
9.446 μΩ-cm, 20°C
bp
1342 °C (lit.)
mp
180 °C (lit.)
density
0.534 g/mL at 25 °C (lit.)
Quality Level
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General description
锂是一种低密度碱金属，广泛用作可充电和不可充电电池的负极材料。此外，它还可用于与铝和镁铸成合金，使其结构更坚固、更轻质。
颗粒锂是一种磨成小颗粒的锂金属。锂是一种质地柔软的银白色金属，具有高反应活性和易燃性。锂的密度很低，为0.534 g/cm3，是最轻的金属之一。和其他碱金属一样，锂的熔点很低（180°C），是电和热的良导体。 颗粒锂具有高反应活性，是一种强还原剂。它可能发生点燃或爆炸，因此必须谨慎处理。锂容易与水和氧气分别反应生成氢氧化锂和氧化锂，甚至在室温下可与氮气反应生成氮化锂。通常，锂储存于氩手套箱和密封容器中，以防止其暴露于湿气、空气和氮气中。 要制成颗粒锂，首先采用碳酸锂转换工艺从锂辉石或锂云母等矿石中提取金属。将锂纯化至高纯度后，通过旋转叶片将其磨成颗粒。
Application
锂可用作：
- 合成锂铝和锂硅合金等锂基合金的前体，以用作能量转换和存储领域的负极材料。
- 熔融LiCl盐中还原氧化锆化合物的还原剂。
- 合成还原剂（1,4-双(三甲基氢化锗)-1.4-二氢吡嗪）的起始原料，以生产镍金属薄膜。
signalword
Danger
hcodes
supp_hazards
存储类别
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Classifications
Skin Corr. 1B - Water-react. 1
法规信息
监管及禁止进口产品
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