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InventoryRef 3811415/10/2010

SODIUM TRIMETAPHOSPHATE

Trisodium trimetaphosphate

SODIUM TRIMETAPHOSPHATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

Chemical identity and properties

PubChem 2D chemical structure for CAS 7785-84-4
CAS 7785-84-4PubChem CID 24579

Sodium Trimetaphosphate

The CIR Expert Panel concluded that the following 31 ingredients are safe in the present practices of use and concentration in cosmetics as described in this safety assessment, when formulated to be non-irritating...Sodium Trimetaphosphate... Cosmetic Ingredient Review (CIR)

IUPAC name
trisodium;2,4,6-trioxido-1,3,5,2lambda5,4lambda5,6lambda5-trioxatriphosphinane 2,4,6-trioxide
Molecular formula
Na3O9P3
Molecular weight
305.89 g/mol
Exact mass
305.84482541 Da
Topological polar surface area
148.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
9
Covalent units
4
Defined stereocentres
0

Also known as

Trisodium trimetaphosphateTrisodium metaphosphateCyclic sodium trimetaphosphateSodium phosphate ((NaPO3)3)Metaphosphoric acid, trisodium saltSodium metaphosphate (Na3(P3O9))Trisodium trimetaphosphate (Na3P3O9)Cyclisches trinatriummetaphosphat
16 more reported names
3IH6169RL0Metaphosphoric acid (H3P3O9), trisodium saltTrimetaphosphoric acid (H3P3O9), trisodium saltRefChem:184143232-088-3Sodium phosphate tribasicSodium trimetaphosphate [USAN]Sodium trimetaphosphate (USAN)DetoxolSodiumtrimetaphosphateHSDB 5048EINECS 232-088-3Cyclisches trinatriummetaphosphat [German]UNII-3IH6169RL03,5,2,4,6-Trioxatriphosphorinane,2,4,6-trihydroxy-trisodiumsaltCCRIS 8524
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for SODIUM TRIMETAPHOSPHATE

INCI name

SODIUM TRIMETAPHOSPHATE

INN name

sodium trimetaphosphate

Description

Trisodium trimetaphosphate

Record provenance

Inventory reference
38114
Imported identity
SODIUM TRIMETAPHOSPHATE
Source update
15/10/2010
European Commission CosIng source notes

Key data

Restriction
Function
ANTICAKING
Preventing agglomeration of particulate solids into lumps or hard masses (cohesive cake), thus allowing free flow of particles.
BUFFERING
Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
CHELATING
Forming complexes with metal ions which could affect the stability and/or appearance of cosmetics.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How SODIUM TRIMETAPHOSPHATE appears in the CosIng inventory

The CosIng inventory lists SODIUM TRIMETAPHOSPHATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

SODIUM TRIMETAPHOSPHATE is also tagged with 3 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

SODIUM TRIMETAPHOSPHATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, SODIUM TRIMETAPHOSPHATE carries the following function designation(s):

CAS 7785-84-4 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for SODIUM TRIMETAPHOSPHATE

This page reproduces the CosIng inventory entry for SODIUM TRIMETAPHOSPHATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research SODIUM TRIMETAPHOSPHATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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