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    <title>ChemicalElements.com: Hafnium</title>
    <link>https://e-sygoing.link/link/5304989-chemicalelementscom-hafnium</link>
    <description>Basic information, atomic structure, and isotopes.</description>
    <pubDate>Sat, 02 Aug 2025 05:39:27 -0400</pubDate>
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    <title>Hafnium</title>
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    <description>Data tables and historic information.</description>
    <pubDate>Wed, 05 Mar 2025 16:43:57 -0500</pubDate>
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    <title>WebElements: Hafnium</title>
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    <description>Extensive information on history, uses, occurrence, compounds, and properties.</description>
    <pubDate>Wed, 12 Feb 2025 10:37:48 -0500</pubDate>
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    <title>Wikipedia: Hafnium</title>
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    <description>Properties of the element, including its history, applications, and characteristics.</description>
    <pubDate>Tue, 14 Jan 2025 14:39:39 -0500</pubDate>
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    <title>EnvironmentalChemistry.com: Hafnium</title>
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    <description>Atomic structure, chemical and physical properties, and table of nuclides.</description>
    <pubDate>Wed, 08 Jan 2025 17:33:46 -0500</pubDate>
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    <title>Lenntech: Hafnium</title>
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    <description>Physical data, chemical properties, health and environmental effects.</description>
    <pubDate>Mon, 18 Mar 2024 01:54:42 -0400</pubDate>
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