Potassium triphosphate

Description

Potassium triphosphate · CAS 13845-36-8 · K5O10P3. UNII NCS08RO8PB.

Identification

CAS Registry Number	13845-36-8
PubChem CID	61695
Molecular formula	K5O10P3
IUPAC name	pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate
UNII (FDA)	NCS08RO8PB

Computed Descriptors

Molecular Weight	448.41
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	10
Rotatable Bond Count	2
Exact Mass	447.6889646
Monoisotopic Mass	447.6889646
Topological Polar Surface Area	185
Heavy Atom Count	18
Formal Charge	0
Complexity	241

Physical description & handling notes

• Dry Powder
• White, very hygroscopic powder or granules
• White hygroscopic solid; [JECFA] White odorless powder; Hygroscopic; [Brenntag Canada MSDS]
• Very soluble in water
• Between 9,2 and 10,5 (1 % solution)

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: NUTRIENT SUPPLEMENT, TEXTURIZER FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS TEXTURIZER; THICKENER: Food Additives Group MTDI for phosphorus from all sources, expressed as P TRS 683-JECFA 26/25
GHS notification summary	73.4% (174 / 237)

GHS Hazard Classification

GHS notification summary	73.4% (174 / 237)
Reported hazard statements	H302 (16%), H315 (10.5%), H319 (10.5%)

Documented Uses

• CIR ingredient: Pentapotassium Triphosphate
• Using Disinfectants or Biocides [Category: Clean]
• Sewer and Wastewater Treatment [Category: Industry]
• Food Additives -> TEXTURIZER; THICKENER -> JECFA Functional Classes
• Cosmetics -> Buffering; Chelating
• Not Known or Reasonably Ascertainable

Synonyms

Pentapotassium triphosphate; 13845-36-8; potassium triphosphate; KTPP; Triphosphoric acid, potassium salt (1:5); Triphosphoric acid, pentapotassium salt; NCS08RO8PB; Potassium triphosphate (K5P3O10); DTXSID2047482; RefChem:171461; DTXCID0027482; 237-574-9; MFCD00054129; EINECS 237-574-9; pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate; K5O10P3

Frequently Asked Questions

What are the CAS number and molecular formula of Potassium triphosphate?

CAS 13845-36-8; molecular formula K5O10P3; molecular weight — g/mol.

What other names is Potassium triphosphate known by?

Pentapotassium triphosphate, 13845-36-8, potassium triphosphate, KTPP, Triphosphoric acid, potassium salt (1:5), Triphosphoric acid, pentapotassium salt.

What is the regulatory status of Potassium triphosphate?

Documented regulatory listings: FDA Substance added to food: NUTRIENT SUPPLEMENT, TEXTURIZER; FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Potassium triphosphate classified as hazardous?

73.4% of GHS notifications report no hazard classification (174 of 237).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.