Sodium trimetaphosphate CAS#7785-84-4

Sodium trimetaphosphate CAS#7785-84-4

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Excellent Chelating & Water-Softening Ability:STPP effectively complexes calcium, magnesium, and iron ions, softening water and improving performance in detergents and industrial applications.

High-Efficiency Dispersing & Cleaning Performance:With strong colloidal and dispersing properties, STPP prevents dirt redeposition, enhances particle stability, and significantly boosts washing efficiency.

Versatile Functional Additive:Its unique molecular structure makes STPP an effective inorganic surfactant, buffer, and cross-linking agent, suitable for detergents, starch modification, and bleaching systems.

Broad Industrial & Consumer Applications:STPP is widely used in detergents, food and industrial processing, vitamin C derivatives, and high-grade toothpaste, offering cost-effective and reliable performance across multiple sectors.
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Product Description

Melting point53℃ [MER06]
Density2.49
Storage temp.Inert atmosphere,Room Temperature
SolubilityWater (Slightly)
FormPowder
ColorWhite
Specific Gravity2.49
Water SolubilitySoluble in water. Insoluble in alcohol.
Merck148,696
CAS DataBase Reference7785-84-4(CAS DataBase Reference)
EPA Substance Registry SystemSodium trimetaphosphate (7785-84-4)

Safety Information

Safety Statements44
RIDADRUN 3077 9 / PGIII
WGK Germany2
RTECSOY4025000
TSCAYes
HS Code28353190
Hazardous Substances Data7785-84-4(Hazardous Substances Data)


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We provide fully compliant, safe and customizable packaging solutions for Sodium Hydroxide, Calcium Chloride, Sodium Carbonate, Potassium Hydroxide and all our industrial chemical products. All packaging strictly follows UN, IMDG and IATA international transport standards, with anti-leakage, moisture-proof and corrosion-resistant design. We also offer professional loading, container reinforcement and full-process traceable global shipping services, ensuring your goods arrive safely and on time at any destination worldwide.

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