beauty
cleaning
industrial

Sodium metaphosphate

CAS 7785-84-4

Also registered as 6 other CAS numbers

1313-95-7 · 35270-09-8 · 857801-56-0 · 1451008-17-5 · 10361-03-2 · 50813-16-6

Concern score

Not assessed — no hazard data yet.

Sodium metaphosphate in plain language

What it is: Also known as Cid 16129671 · Insoluble metaphosphate · Kurrol's salt · Sodium kurrol's salt · Sodium metaphosphate (NA(PO3)) · Sodium phosphate (NAPO3)
Show all 13 names
Graham's salt · J139.264F · Maddrell's salt · Metafos · Metaphosphoric acid, (HPO3), sodium salt · Sodium phosphate · Sporix
What it does: Used in cosmetics as an oral-care ingredient, a pH buffer and a chelating agent.
Oral care
Buffering
Chelating
Emulsifier
Surfactant
Chelating agent
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Sodium metaphosphate appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Cleaning
Industrial

EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 26 composition records across product categories including Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Chelating agent, pH regulating agent, oral care.
- EPA CPDat observed this chemical in 26 composition records across product categories including Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Chelating agent, pH regulating agent, oral care.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Sodium metaphosphate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Sodium metaphosphate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated September 2018
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Reference links (3)

Openfda substance

chem.sis.nlm.nih.gov

Read →

Openfda substance

pubchem.ncbi.nlm.nih.gov

Read →

Openfda substance

nikkajiweb.jst.go.jp

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Sodium metaphosphate in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Laboratory suppliesPersonal care

Typical roles

Oral careBufferingChelatingEmulsifierSurfactantChelating agent

See products using Sodium metaphosphate →

Catalog

Found in these products

Their ingredient lists include Sodium metaphosphate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 42 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Sodium metaphosphate in the catalog.