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This is a question for a blacksmith/chemist. When I forge mild steel a lot of scale piles up around the anvil. Is this scale chemically similar to magnetite (Fe2 3O4). I meed a couple of ounces of powdered magnetite for some hand made electrical inductors. Powdered magnetite is available commercially but I only need a couple of ounces and I have a lifetime's worth of scale around the anvil. Thanks
Compiled by Adam Ford COMPARISON BORAX followed by BORIC ACID FORMULA Na2B4O7·10H2O H3BO3 MOLAR MASS 381.37 g/mol 61.83 g/mol MELTING POINT 1,369°F (743°C) 339.6°F (170.9°C) BOILING POINT 2,867°F (1,575°C) 572°F (300°C) DENSITY 1.73 g/cm³ 1.44 g/cm³ SOLUBILITY Water Water IUPAC ID Sodium tetraborate decahydrate (so-dee-um tet-ra-bo-rate dec-a-hi-drate) Trihydroxidoboron, Boric acid (tri-hy-drox-ide-o-bo-ron) DIFFERENCES BORAX followed by BORIC ACID Differences FORMULA Na2B4O7·10H2O H3BO3 BORAX much more complex MOLAR MASS 381.37 g/mol 61.83 g/mol Difference 319.54 g/mol MELTING POINT 1,369°F (743°C) 339.6°F (170.9°C) Difference 1029.4°F (554.111°C) BOILING POINT 2,867°F (1,575°C) 572°F (300°C) Difference 2295°F (1257.222°C) DENSITY 1.73 g/cm³ 1.44 g/cm³ Difference 0.29 g/cm³ In the end, You will have to heat the metal a lot less to be able to get the metal fluxed with Boric acid. This is JUST A REFERANCE SHEET I am NOT ADVOCATING FOR ONE OR THE OTHER, THAT IS YOUR CHOICE This sheet may be used as you want. Redistribution is fine by me