Raney nickel

Rarity: Uncommon

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Notion

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Science and technology

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What Wikipedia says

Raney nickel , also called spongy nickel, is a fine-grained solid composed mostly of nickel derived from a nickel–aluminium alloy. Several grades are known, of which most are gray solids. Some are pyrophoric, but most are used as air-stable slurries.

Excerpt from the Wikipedia article “Raney nickel”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: en:User:Rune.welsh, CC BY-SA 3.0, via Wikimedia Commons.