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Potassium borate

CAS 13764-84-6

Also registered as 6 other CAS numbers

115372-66-2 · 163701-95-9 · 193906-27-3 · 248939-62-0 · 1189141-74-9 · 1332-77-0

Potassium borate chemical structure

Concern score

Not assessed — no hazard data yet.

Potassium borate in plain language

What it is

Also known as Potassium tetraborate · Boron potassium oxide (B4K2O7) · Boric acid (H2B4O7), dipotassium salt · Potassium borate (K2B4O7) · Potassium tetraborate (K2B4O7) · dipotassium salt Boric acid

Show all 14 names

Dipotassium tetraborate · Ec 215-575-5 · Fzqslxqphpothg-uhfffaoysa-n · K2B4O7 · Q15627938 · UNII-ZV5114S322 · potassium borate (potassium tetraborate as borates) · potassium borate/tetraborate

What it does

Used in cosmetics as a pH buffer. Potassium Borate is the inorganic salt.

  • Buffering
  • pH adjuster
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. Potassium borate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Pharma
  • Food
  • Industrial
  • EUCosIngActivePotassium Borate is the inorganic salt that conforms to the formula: Restriction: II/1396
    • Potassium Borate is the inorganic salt that conforms to the formula: Restriction: II/1396Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 118 composition records across product categories including Specialty occupational products, Laboratory supplies, Raw materials. EPA CPDat classifies this chemical for functional uses including pH regulating agent.
    • EPA CPDat observed this chemical in 118 composition records across product categories including Specialty occupational products, Laboratory supplies, Raw materials. EPA CPDat classifies this chemical for functional uses including pH regulating agent.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 Potassium borate. 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 Potassium borate 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 February 8, 2019

    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 →

Suitability

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

Food use

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.

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

Source records

118

Named organisations

2

Specialty occupational productsLaboratory suppliesRaw materialsIndustrial productsFood and drugConstruction

Typical roles

BufferingpH adjuster
See products using Potassium borate →

Catalog

Found in these products

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