Hydroxyapatite (a form of calcium phosphate) nanowires are used to create paper that does not burn .
Good for finding ACS (high purity) grade powder in small quantities from chemical resellers. Scientific & Research Grade: where to buy calcium phosphate
Often combined with other treatments to make paper that resists both heat and liquid. 🥚 DIY Alternative (Make Your Own) If you can't buy it, you can extract it from eggshells : Roast washed eggshells in a pan until slightly browned. Grind them into a fine powder. Hydroxyapatite (a form of calcium phosphate) nanowires are