Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 68915-31-1, Whether you call it Sodium Polyphosphates, Grahams Salt , Sodium Hexametaphosphate - Glassy or Sodium Polymetaphosphate you can be assured the Sodium Polyphosphates products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.