Used primarily in the electronics industry as a developer for photoresists in the production of semiconductors and printed circuit boards. It effectively removes exposed areas of photoresist, allowing for precise pattern creation. Additionally, it serves as a catalyst in organic synthesis, particularly in the production of silicone polymers and other specialty chemicals. In analytical chemistry, it is employed as a reagent for titrations and as an ion-pairing agent in chromatography to improve separation efficiency. Its strong alkaline properties also make it useful in cleaning and etching applications for various surfaces.