Uranyl hydroxide
Uranyl hydroxide is a hydroxide of uranium with the chemical formula UO(OH) in the monomeric form and (UO)(OH) in the dimeric; both forms may exist in normal aqueous media. Uranyl hydroxide hydrate is precipitated as a colloidal yellowcake from oxidized uranium liquors near neutral pH.
Potassium peroxymonosulfate
The triple salt 2KHSO·KHSO·KSO (known by the tradename Oxone) is a form with higher stability. The standard electrode potential for this compound is +1.81 V with a half reaction generating the hydrogen sulfate (pH=0).