Sodium Hexametaphosphate NSF
Product Overview:
Identification of Substance: sodium polyphosphate
Trade name: Sodium Hexametaphosphate
CAS #: 68915-31-1
Sodium hexametaphosphate (SHMP) NSF grade is a food- and drinking-water-safe polyphosphate compound used across municipal water treatment and food processing applications. Its NSF certification qualifies it for direct food contact and potable water treatment use under NSF/ANSI Standard 60, making it commonly employed as a corrosion and scale inhibitor in municipal drinking water systems, where it sequesters calcium, magnesium, and iron to prevent pipe scaling and discoloration. Additionally, it serves as a food additive for moisture retention and texture improvement in meat, seafood, and dairy products requiring certified food-grade purity. SHMP NSF grade is also utilized in municipal water treatment programs specifically requiring certified, potable-water-safe sequestering chemistry.
Documentation:
Technical Information:
P2O5 content
≥ 67 %
pH (1% solution)
6.0 – 7.0
Hg content
≤ 1.0 ppm
Water Insoluble Matter
≤ 0.15 %
Los on Ignition (550oC)
≤ 1.0 %
Loss of Weight (4h/105oC)
≤ 0.2 %
Chain Length
12 – 17
Residue on sieves – 1.00 mm
≤ 50 %
Residue under sieves – 0.25 mm
≤ 25 %
As content
≤ 40.0 ppm
F content
≤ 5.0 ppm
Pb content
≤ 2.0 ppm
Cd content
≤ 1.0 ppm
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