Date: 2/05/2026 15:15:09
From: Spiny Norman
ID: 2387066
Subject: re: Spiny's thread of occasional interest
Element 72: Hafnium (Hf) – the ultra-tough metal that can survive boiling acids, seawater, and extreme heat that destroys most materials! With a melting point over 2200°C, it’s used in jet engines, nuclear reactors, and spacecraft.
Yet in powder form, this incredibly stable metal becomes pyrophoric and can spontaneously ignite in air with a brilliant white flame. Discover hafnium’s dramatic contrast: extreme durability with a dangerously fiery side.