Key attributes:

• Industrial grade 68% CAS 10124-56-8
• Food grade 68% CAS 10124-56-8
• Molecular formula (NaPO3)6 Molecular weight: 611.77

Sodium hexametaphosphate (NaPO₃)ₙ as a nonlinear polyphosphate, its degree of polymerization n is typically 6-20, and this special topological structure gives it three core properties:

• Dynamic chelating effect: Its helical molecular chain can adaptively encapsulate divalent/trivalent metal ions (such as Ca²⁺, Fe³⁺, etc.), with a chelating capacity of 300-400mg CaCO₃/g
• Interface activation behavior: A nanoscale adsorption layer is formed at the solid-liquid interface, and the Zeta potential can be adjusted to -30mV to -50mV
• pH response characteristics: It remains stable within the pH range of 4 to 9. Beyond this range, controllable depolymerization occurs

1. Advanced material preparation
   • As a steric hindrance stabilizer in graphene dispersion, it can increase the concentration to 5mg/mL
   • Surface modifiers used in quantum dot synthesis, reducing particle size distribution to ±2nm
2. Intelligent water treatment system
   • Combined with magnetic nanoparticles, a recyclable heavy metal adsorbent (Pb²⁺ removal rate >98%) was developed
   • In the pretreatment of reverse osmosis membranes, the membrane fouling index was reduced by 60%
3. 3D printing of food
   • As a rheology modifier for food ink, it can increase the printing accuracy to the level of 100μm
   • When compounded with κ-carrageenan, it shows shear thinning properties (n value 0.3-0.5)

Sodium hexametaphosphate is transforming from a traditional auxiliary agent to a key component of innovative materials. Through molecular engineering modification and interdisciplinary application, the potential for value enhancement far exceeds expectations. Driven by the dual wheels of green chemistry and intelligent manufacturing, the economic efficiency of SHMP technology will continue to break through. It is recommended to pay attention to its patent layout opportunities in high value-added fields.