Why is tartaric acid used in the making of play dough?

Tartaric acid is used in making play dough primarily as a stabilizing agent and to enhance its texture. It helps improve the dough's elasticity and consistency, making it easier to mold and shape. Additionally, tartaric acid can act as a natural preservative, extending the shelf life of the play dough by inhibiting the growth of bacteria and fungi. Overall, it contributes to a smoother and more enjoyable play experience.