Overall recommended test:
For characteristic shapes crystal formations, the platinic bromide reagent is ideal. However, the crystals are not always suitable for IR spectroscopy. Flatter crystals that have grown sufficiently large but not overgrown are best for IR. For a combined test, the platinic chloride reagent is recommended.
Browse the 4-Methylbuphedrone (4-methyl BP) Collections:
4-methyl BP in 5% HAuCl₄ in 1:2 concentrated H₂SO₄: H₂0
4-methyl BP in Gold Bromide (HAuBr₄)