Definition
US FDA substance register · UNII NCS08RO8PB · registered name PENTAPOTASSIUM TRIPHOSPHATE · single chemical substance
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
Reviewed by CIR: Safety Assessment of Phosphoric Acid and Its Salts as Used in Cosmetics
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 13845-36-8
- EC No.EU chemical inventory number
- 237-574-9
- DTXSIDUS EPA chemical ID
- DTXSID2047482
- DTXCIDUS EPA compound ID
- DTXCID0027482
- IUPAC
- Pentapotassium triphosphate
- Molecular formula
- K5O10P3
- Molecular weight
- 448.403 g/mol
Measured properties
- Appearance
- Dry Powder · White, very hygroscopic powder or granules
- Solubility
- Very soluble in water
- pH
- Between 9,2 and 10,5 (1 % solution) · 10.5 ()
- Colour
- white
- Odour
- odourless
- Melting/freezing point
- 620~640 ℃
- Initial boiling point and range
- &, gt, 1482 ℃
- Water solubility
- (66%)
- Relative density
- 2.54 ()
- Molecular weight
- 448.5
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 18 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.
- Processing aids not otherwise specified5
- Biocide4
- No specific technical function4
- Other1
- Thickening agent1
- Chelating agent1
- Flavouring and nutrient1
- pH regulating agent1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
1 skin studies and 1 eye studies are on record.
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 2 studies
- Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: FMC Non-Definitive Primary Skin Irritation Protocol (Number 10) according to OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to - Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to
Source: US EPA CompTox dashboard
Linked databases 15
- Australian Industrial Chemicals Inventory (AICIS)
- EU CosIng ingredient list 2
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- PubChem
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · Chinese