Sodium Tripolyphosphate (STPP) 94% Industrial Grade
Chemical Name: Sodium Tripolyphosphate, Sodium Triphosphate
• Molecular Formula : Na5P3O10
• Molecular Weight : 367.86
• Physical properties: White crystal powder,melting point is 622°C,easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+,Mg2+,can soften hard water,change suspension into solution,alkalescent,without causticity.
• Quality standard: (GB/T9983-2004)
1 MAIN CONTENT (Na5P3O10) 94.00% MIN
2 P2O5 57.00% MIN
3 WATER INSOLUBLE 0.05% MAX
4 IRON (Fe) 0.005%MAX
5 DENSITY 0.4~1.0 G/CM3
6 PH VALUE 9.2~10.0
7 WHITENESS 90%MI
• Packing instructions: Paper bag or PP-PE bag, Net weight 25kg, 50kg 1000kg per bag, or based on the customers’ requirements.