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In 1977 the United States Environmental Protection Agency published a position paper advocating for a phosphate ban in detergents.. States including Maine, Florida, and Indiana in the United States began restricting or banning the use of phosphates in laundry detergent in the early 1970s, culminating in a nationwide voluntary ban in 1994. [3]
Phosphates are commonly used as a detergent in a wide array of cleaning products. [8] The most prevalent form of phosphates that are found in household cleaners is pentasodium triphosphate (PTSP). [8] PTSP and other phosphates are unable to be fully removed during wastewater treatment.
Builders in detergents are water softeners, which can remove calcium and magnesium ions by complexation or precipitation in hard water which contains high levels of calcium and magnesium. Sodium triphosphate, with a formula of Na 5 P 3 O 10, is a largely used builder in laundry detergents, which can lead to eutrophication caused by phosphorus ...
Phosphates in detergent became an environmental concern in the 1950s and the subject of bans in later years. [9] Phosphates make laundry cleaner but also cause eutrophication , particularly with poor wastewater treatment .
Another environmental issue with synthetic detergents is the addition of phosphates to these cleaning products. Phosphates are added to detergent as tripolyphosphate or as sodium/potassium phosphate. [ 2 ] [ 6 ] Phosphates interact with other ions in solution, like Calcium and Magnesium, to improve the washing ability of the detergent ...
Sodium triphosphate (STP), also sodium tripolyphosphate (STPP), or tripolyphosphate (TPP), [1]) is an inorganic compound with formula Na 5 P 3 O 10.It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.
Trisodium phosphate (TSP) is an inorganic compound with the chemical formula Na 3 P O 4. It is a white, granular or crystalline solid, highly soluble in water, producing an alkaline solution. TSP is used as a cleaning agent , builder , lubricant , food additive , stain remover , and degreaser .
They are widely used to replace phosphorus. The 4A molecular sieve plays a major role to replace sodium tripolyphosphate as detergent auxiliary in order to mitigate the environmental impact of the detergent. It also can be used as a soap forming agent and in toothpaste.