The Hafnium fluoride, with the CAS registry number 13709-52-9, is also known as Hafnium(IV) fluoride. It belongs to the product categories of Hafnium Salts; Metal and Ceramic Science; Salts. Its EINECS registry number is 237-258-0. This chemical's molecular formula is F₄Hf and molecular weight is 254.48. What's more, its systematic name is Hafnium tetrafluoride. In addition, it must be stored in airtight containers and placed in a dry, ventilated place at room temperature. Meanwhile, it should avoid contacting with light. Besides, it should be kept away from water and acid.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system and skin. When it contacts with acids, it will liberate very toxic gas. What's more, it is toxic by inhalation. In addition, this chemical may cause inflammation to the skin or other mucous membranes. Meanwhile, it may cause damage to health at low levels. Besides, it may cause serious damage to eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. During using it, wear suitable protective clothing , gloves and eye/face protection. In case of accident or if you feel unwell seek, medical advice immediately.

You can still convert the following datas into molecular structure:
(1) SMILES: [F-].[F-].[F-].[F-].[Hf]
(2) InChI: InChI=1/4FH.Hf/h4*1H;/p-4
(3) InChIKey: HRTPXFIQXNXHQB-XBHQNQODAF