Toilet bowl cleaning tablet with uniform dissolution of components and bleaching compound

This invention relates to formulations for cleaning toilet bowls, and in particular to a composite in-tank toilet tablet providing uniform release of all ingredients. A cleaning formulation, in tablet form, capable of providing uniform delivery of cleaning agents, fragrance and colorants while immersed in a the tank of a toilet. The tablet comprises a solubility-controlling matrix of a linear alkyl benzene sulfonate, and an alkyl sulfate surfactants, a monoalkanolamide dissolution control agent, a hydroxyethylcellulose binder; and cleaning actives including a peroxygen bleach, organic and inorganic salts, and aesthetic agents to signal ongoing cleaning effectiveness