Pentasodium Triphosphate

INCI: PENTASODIUM TRIPHOSPHATE

CAS Number
7758-29-4 (EC 231-838-7)
Function
Chelating agent, buffering agent
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FDA GRAS (food additive); acceptable cosmetic ingredient; no CIR restriction

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Alkaline pH (~9.5 in 1% solution); may cause dryness/irritation at high concentrations; avoid eye-area products at high concentrations; environmental concern (eutrophication) if discharged in bulk.

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Concern Level: Moderate

Regulatory Flags

eu_children_restricted epa_safer_alternative fda_food_additive

Frequently Asked Questions

Is Pentasodium Triphosphate safe in cosmetics?

Alkaline pH (~9.5 in 1% solution); may cause dryness/irritation at high concentrations; avoid eye-area products at high concentrations; environmental concern (eutrophication) if discharged in bulk. The EU classifies Pentasodium Triphosphate as "permitted". Safety rating: GOOD.

Is Pentasodium Triphosphate allowed in the EU?

Pentasodium Triphosphate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Pentasodium Triphosphate do in cosmetics?

Pentasodium Triphosphate functions as: Chelating agent, buffering agent. It is classified as a cosmetic ingredient in our database. CAS number: 7758-29-4 (EC 231-838-7).

What is the Margin of Safety for Pentasodium Triphosphate?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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