Used as a precursor in the production of titanium dioxide pigments, metatitanic acid plays a key role in manufacturing white pigments for paints, coatings, and plastics due to its high opacity and brightness. It is also employed in the synthesis of catalysts and ceramic materials, where its thermal stability and reactivity are advantageous. In some cases, it serves as an intermediate in flame-retardant additives and in the development of specialty glasses and optical materials. Its ability to form fine, uniform particles makes it suitable for advanced material applications requiring controlled morphology.