Acetic acid - no change in dry mix, ineffective without complex vapor infusion process impractical on a small scale
Charcoal - despite some ominous bubbling and a scabby surface, sanding reveals an even, glossy black finish with good penetration. Appears structurally strong, generally comparable to unadulterated material. Grind fine.
Wood flour - similar to charcoal, but yields unpleasant brown stain. End product appears similar irrespective of species - test further with stronger staining material like padauk
Benzene - don't do this, idiot
Bronze powder - rapidly crystallizes to a very smooth, even dark brown. Liquefies notably faster than other samples, distributes heat more widely, and retains melting temperature longer, even at low concentrations
Copper nitrate - despite promising turquoise crust forming at top, failed to distribute heat evenly leading to poorly formed, uneven results in all samples.
Indigo - rapid charring, brownish coloration, weak structure. Vegetal infusions contraindicated, cannot withstand melting temperatures
General notes - base appears to quickly take on properties of whatever is mixed into it. If grains are sufficiently fine, and thoroughly mixed, very little additive necessary to yield its complete effect.
