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- 介绍: 对湿敏感。加热时颜色由浅变深,变为深橙色,冷后仍恢复原色。溶于氢氧化碱溶液,微溶于酸,不溶于水。最小致死量(大鼠,经口)840mg/kg。有刺激性。850℃时显著升华,熔融时呈绿色。在空气中稳定,不溶于水和除氢氟酸外的无机酸,能缓慢溶于氨水和浓热氢氧化钠溶液中。
- 熔点: 1473°C
- 沸点: 1750°C
- 储存条件: 对湿敏感,密封保存。
- 用途: 可用作制金属钨的原料,制造硬质合金、刀具、模具和拉钨丝,也可用于粉末冶金,还可用于X射线屏及防火织物,以及用作陶瓷器的着色剂和分析试剂等。蓝色氧化钨用作生产钨粉,掺杂钨粉,钨条、钨杆、....和硬质合金等。黄色氧化钨用于电渡和生产其它钴产品、气压计、比重计
- 敏感性: 对湿度敏感
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