Connection Chemical Sodium Tripolyphosphate Heavy, Granular (STPP)

Connection Chemical Sodium Tripolyphosphate Heavy, Granular (STPP) is a high-purity chemical belonging to both the sodium salts and phosphates families. This product is in granular form and classified as technical grade, suitable for various industrial applications.

Chemical Name: Pentasodium triphosphate

CAS Number: 7758-29-4

Grade: Technical Grade

Chemical Family: Phosphates, Sodium Salts

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Enhanced TDS

Identification & Functionality

Applications & Uses


Physical Form
Soluble In
Particle Size Distribution
ValueUnitsTest Method / Conditions
Screen Analysis (On 1000 μm)max. 15.0%-
Screen Analysis (On 250 μm,Cumulative)min. 90.0%-
ValueUnitsTest Method / Conditions
Phosphorus Pentoxide Contentmin. 55.5%-
STPP Content (as Na₅P₃O₁₀)min. 94%-
Bulk Density900 - 1300--
Chromium Contentmax. 5ppm-
Cobalt Contentmax. 1ppm-
Nickel Contentmax. 5ppm-
Copper Contentmax. 5ppm-
Cadmium Contentmax. 1ppm-
Lead Contentmax. 5ppm-
Mercury Contentmax. 1ppm-
Arsenic Contentmax. 10ppm-
Iron Contentmax. 50ppm-
Magnesium & Calcium Contentmax. 250ppm-

Regulatory & Compliance

Chemical Inventories

Packaging & Availability