Skip to content
  • industrial

Phosphite

CAS 14901-63-4

Concern score

Not assessed — no hazard data yet.

Phosphite in plain language

What it is

Also known as Orthophosphite · Phosphite ions · Phosphito(3-), ion(3-) · Phosphorous acid, ion(3-)

What it does

Used in consumer products as an antioxidant.

  • Antioxidant
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Phosphite appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 3 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Heat stabilizer, Catalyst, Antioxidant.
    • EPA CPDat observed this chemical in 3 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Heat stabilizer, Catalyst, Antioxidant.Source →

Evidence & sources

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

2 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated 2021-06-08

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

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 Phosphite in a product composition. These are source records, not Greenveil catalog products.

Source records

3

Named organisations

5

Typical roles

Antioxidant
See products using Phosphite →

Catalog

Found in these products

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