Sodium Trimetaphosphate (STMP) is a Sodium Phosphate salt (NaPO3)3, that when added to gypsum can help to optimize the setting time while enhancing the structural integrity of the wallboard. STMP is an important additive in the production of high throughput and high quality wallboard for use by businesses and individuals in the construction and home remodeling industry.
It is a colourless solid that finds specialised applications in food and construction industries.
CAS Number - 7785-84-4