Sodium Tripolyphosphate(STPP)

SYNONYM: SODIUM TRIPHOSPHATE, STPP FORMULA: Na5P3O10 M. W.: 368 CAS NO.: 7758-29-4 GRADE: TECH.GRADE DESCRIPTION: WHITE CRYSTAL HYGROSCOPIC AND SOLUBLE IN WATER THAT MAKES AN ALKALINE SOLUTION AND HAVE CAPACITY OF COMPLEXING METAL IONS, SUCH AS CA2+ MG2+ FE2+ FE3+ ECT., AND EFFECT COLLOIDIZATION, EMUSIFICATION DISPERSION AND BUFFERING. SPECIFICATIONS: CONTENT 94% MIN. P2O5 CONTENT 57%MIN. INSOLUBLE IN WATER: 0.01%MAX. PH VALUE (1% SOLUTION) 9.2-10.0 BULK DENSITY 0.5-0.9 g/cm3 OTHER PHOSPHATE 6%MAX. MOISTURE 0.1%MAX. Fe 50ppm MAX PHAS 30-55% TEMPERATURE RISE 8-16 RATE OF HYDRATE AFTER 1 MINUTE 85MIN. RATE OF HYDATE AFTER 5 MINUTE 92MIN. USES: USED AS MAIN DETERGENT BUILDING: AS SOFT WATER AGENT, AS DETERGENT BUILDING FOANING AGENT, AS EMULSIFIER OF OILS AND GREASES, AS PEPTIZING AGENTS, AS PH BUFFERS, AND TO PROVIDE ALKALINITY. USED IN PETROLEUM INDUATRY AS PEPTIZING AND DEFLOCCULATION AGENTS IN OIL WELL DRILLING MUDS, SEQUESTRATION IN COTTON BOILING, BATH WATER SOFTENING, RED AND BLACK WATER CONTROL, CATHOCLIC CORROSION INHIBITER. PACKING: 25KG NET PLASTIC WOVEN BAGS. H.S. NO.: 2835.3100