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POTASSIUM BORATE

Molecular structure

Definition

US FDA substance register · UNII ZV5114S322 · registered name POTASSIUM BORATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Potassium Borate is the inorganic salt that conforms to the formula:

Cosmetic roles

Keeps pH steadyBUFFERING

Safety & regulatory references

Restricted or banned
European Union

Source: MFDS (Korea) cosmetic regulatory information

Argentina · Brazil

  • Field of application and/or use : (a)Talc (b) Products for oral hygiene (c) Other products (excluding bath products and hair undulation)
  • Maximum concentration permitted at final product : (a) 5% (m/m calculated as boric acid) (b) 0,1% (m/m calculated as boric acid) (c) 3% (m/m calculated as boric acid)
  • Other limitations and requirements : a) No use in products for children under 3 years. Do not use on broken or irritated skin if the tenor of soluble free borates exceed 1,5% (calculated as boric acid, m / m) b) No use in products for children under 3 years. c) No use in products for children under 3 years. Do not use on broken or irritated skin if the concentration of soluble borates exceed 1,5% (calculated as boric acid, m / m)
  • Use conditions and warnings that must appear on the label : a), b) and c) For products for adult use: "Do not use in children" For products aimed at children: "Do not use in children under 3 years" a) Do not use on broken or irritated skin b) Do not ingest c) Do not use on broken or irritated skin
  • Field of application and/or use : (a) Products for bath (b) Products for waving of hair
  • Maximum concentration permitted at final product : (a) 18% (m/m calculated as boric acid) (b) 8% (m/m calculated as boric acid)
  • Other limitations and requirements : a) No use in products for children under 3 years.
  • Use conditions and warnings that must appear on the label : a), b) and c) For products for adult use: "Do not use in children" For products aimed at children: "Do not use in children under 3 years" b) Rinse thoroughly

ASEAN

  • Field of application and/or use : (a) Talc (b) Products for oral hygiene (c) Other products (excluding bath products and hair waving products)
  • Maximum authorised concentration in the finished cosmetic product : (a) 5% (by mass/mass as boric acid) (b) 0.1% (by mass/mass as boric acid) (c) 3% (by mass/mass as boric acid)
  • Other limitations and requirements : (a) 1. Not to be used in products for children under 3 years of age 2. Not to be used on peeling or irritated skin if the concentration of free soluble borates exceeds 1.5% (by mass/mass as boric acid) (b) Not to be used in products for children under 3 years of age (c) 1. Not to be used in products for children under 3 years of age 2. Not to be used on peeling or irritated skin if the concentration of free soluble borates exceeds 1.5% (by mass/mass as boric acid)
  • Conditions of use and warning which must be printed on the labels : (a) 1. Not to be used in products for children under 3 years of age 2. Not to be used on peeling or irritated skin (b) 1. Not to be swallowed 2. Not to be used in products for children under 3 years of age (c) 1. Not to be used in products for children under 3 years of age 2. Not to be used on peeling or irritated skin
  • Field of application :
  • Other limitations and requirements :

Canada

  • Conditions of Use by product type : (a) As a pH adjuster (b) Other cosmetics
  • Maximum Concentration Permitted : ((a) 0.1% (b) 5%
  • Warnings and Cautionary Statements: (to the effect of) : (b) "Do not use on broken or abraded skin, not to be used by children under three years of age."

Source: MFDS (Korea) cosmetic regulatory information

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Restriction II/1396 · SCCS opinion: Opinion on Boric acid, Borates and Tetraborates; Opinion on Sodium Perborate and Perboric Acid

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

POTASSIUM BORATEINCI포타슘보레이트Korean label name (MFDS standard)Boric acid (H2B4O7), dipotassium saltSynonym
CAS No.chemical registry number
1332-77-0
EC No.EU chemical inventory number
215-575-5
DTXSIDUS EPA chemical ID
DTXSID2052782
DTXCIDUS EPA compound ID
DTXCID801476771
IUPAC
Dipotassium bicyclo[3.3.1]tetraboroxane-3,7-bis(olate)
Molecular formula
B4K2O7
Molecular weight
233.43 g/mol

Measured properties

Appearance
Liquid, Dry Powder · Pentahydrate: White solid, [Merck Index] White crystalline solid, Odorless, [U.S. Borax MSDS]
Colour
white
Water solubility
(16.32 w/w % @ 20 ℃)
Vapour density
8.06
Relative density
1.911 (@ 20 ℃)
Molecular weight
233.44

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 8 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

  • Intermediate3
  • Flux agent2
  • pH regulating agent1
  • Cleaning agent1
  • Lubricating agent1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 6 eye studies are on record.

Classed as low4

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 10 studies
  • Studies Indicate No Significant Irritation
    skin irritation: in vivo · Screening · other guideline: This study was carried out to comply with US EPA-FIFRA guidelines at the time and carried out by the US Food and Drug Laboratories to GLP. according to
  • Not likely to be sensitizing
    skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
  • Ambiguous
    skin irritation: in vivo · Screening · other guideline: Section 173.240 under Title 49 of the code of Federal Regulations (Federal Register, 1973). according to
  • Studies Indicate No Significant Irritation
    skin irritation: in vivo · Screening · other guideline: This study was carried out to comply with US EPA-FIFRA guidelines at the time and carried out by the US Food and Drug Laboratories to GLP. equivalent or similar to
  • Severe Irritation
    eye irritation: in vivo · Screening · other guideline: EPA, 40 CFR 160 Pesticide Assessment Guidelines, Subdivision F Hazard Evaluation: Human and Domestic Animals, November 1982 according to
  • Studies Indicate No Significant Irritation
    eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
  • Severe Irritation
    eye irritation: in vivo · Screening · other guideline: EPA, 40 CFR 160 Pesticide Assessment Guidelines, Subdivision F Hazard Evaluation: Human and Domestic Animals, November 1982 . according to
  • Studies Indicate No Significant Irritation
    eye irritation: in vivo · Screening · other guideline: FIFRA (40 CFR 158, 162) according to other guideline: TSCA (40 CFR 798) according to OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
  • Moderate or Mild Irritation
    eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
  • Studies Indicate No Significant Irritation
    eye irritation: in vivo · Screening · EPA OPPTS 870.2400 (Acute Eye Irritation) according to OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to

Source: US EPA CompTox dashboard

Linked databases 15

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