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Safety Data Sheets / AGent Industrial

Sodium Tripolyphosphate STPP

Sodium tripolyphosphate · Na₅P₃O₁₀

Signal wordWarningTransportNot dangerous goodsPoisons scheduleNot Scheduled (SUSMP — not listed)SDS version2026.01 · June 2026

Hazards

Harmful or irritant pictogram
Harmful or irritant
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Full GHS classification
  • Serious Eye Damage/Eye Irritation Category 2A — H319
  • Specific Target Organ Toxicity (Single Exposure) Category 3 (respiratory) — H335

Poisons schedule

Not Scheduled (SUSMP — not listed)

Used for

Detergent builder; water softener; sequestrant; dispersant; food additive.

Never

None specified in the source SDS.

Handling

Appearance
Solid — white powder / granule / pellets
pH
9.2 – 10.2 (10 g/L @ 20 °C; alkaline)
Keep away from
Strong oxidising agents. Store away from incompatible materials (see Section 10).

Also known as

STPP; sodium triphosphate; pentasodium triphosphate; sodium polyphosphate

Summary only. The PDF is the Safety Data Sheet: read it before handling, storing or disposing of this product, and keep it with the product.