Tripotassium Phosphate

INCI: POTASSIUM PHOSPHATE (COVERS MONO-, DI-, AND TRI- FORMS) / TRIPOTASSIUM PHOSPHATE

CAS Number
7778-53-2
Function
Buffering agent, pH adjuster, emulsion stabilizer, preservative booster
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes GRAS (Generally Recognized as Safe) as a food additive; CIR reviewed phosphate salts as safe in cosmetics

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Strongly alkaline (pH ~11.5โ€“12.7 in solution) โ€” must be properly buffered in formulation to avoid skin irritation; verify final product pH

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Concern Level: Moderate

Regulatory Flags

preservative fda_food_additive

Frequently Asked Questions

Is Tripotassium Phosphate safe in cosmetics?

Strongly alkaline (pH ~11.5โ€“12.7 in solution) โ€” must be properly buffered in formulation to avoid skin irritation; verify final product pH The EU classifies Tripotassium Phosphate as "permitted". Safety rating: GOOD.

Is Tripotassium Phosphate allowed in the EU?

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

What does Tripotassium Phosphate do in cosmetics?

Tripotassium Phosphate functions as: Buffering agent, pH adjuster, emulsion stabilizer, preservative booster. It is classified as a cosmetic ingredient in our database. CAS number: 7778-53-2.

What is the Margin of Safety for Tripotassium Phosphate?

not established 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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