The element is used in producing isotopically fractionated uranium from uranium hexafluoride (UF<sub>6</sub>). Hydrofluoric acid (HF) is extensively used for etching the glass of light bulbs, and other glass products. | The element is used in producing isotopically fractionated uranium from uranium hexafluoride (UF<sub>6</sub>). Hydrofluoric acid (HF) is extensively used for etching the glass of light bulbs, and other glass products. |