Acids & Salts Available — Bulk Only

Dipotassium Phosphate (DKP)

CAS 7758-11-4 · Formula HK2O4P · MW 174.176 g/mol

A high-solubility potassium phosphate salt serving as buffer, sequestrant, and emulsifying salt in process systems. It is used as a buffering agent, sequestrant, and emulsifying salt, as a corrosion inhibitor in antifreeze systems, and as a nutrient in fermentation and culture media.

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HS Code
2835.24
At a Glance
Material Family
Acids & Salts
Record Type
Pure compound
Primary Role
pH Adjustment · Chelation / Sequestration
Functional Roles
DIPOTASSIUM PHOSPHATE
ANTICORROSIVEBUFFERING
Applications & Use Cases
  • Buffering agent: pH buffer and acidity regulator.
  • Sequestrant: Chelates metal ions in formulated systems.
  • Emulsifying salt: Emulsifier in processed-cheese systems.
  • Corrosion inhibitor: Component of antifreeze corrosion-inhibitor systems.
  • Fermentation nutrient: Potassium/phosphate nutrient in culture media.
Physical Properties
Melting Point
Decomp
Solubility
Freely soluble in water. Insoluble in ethanol
pH
Between 8,7 and 9,4 (1 % solution)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2835 . 24
Chapter 28
Inorganic chemicals; compounds of precious metals and rare-earth metals
Heading 28.35
Internationally harmonized (WCO HS)
Subheading 2835.24
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
7758-11-4
Molecular Formula
HK2O4P
Molecular Weight
174.176 g/mol
IUPAC Name
dipotassium;hydrogen phosphate
INCI Name
DIPOTASSIUM PHOSPHATE
PubChem CID
InChI Key
ZPWVASYFFYYZEW-UHFFFAOYSA-L
Synonyms & Trade Names
Dipotassium hydrogen phosphate DIPOTASSIUM PHOSPHATE Potassium phosphate dibasic Dipotassium hydrogenphosphate Dibasic potassium phosphate Potassium phosphate, dibasic Phosphoric acid, dipotassium salt Potassium dibasic phosphate Dipotassium monophosphate Potassium monophosphate Dipotassium orthophosphate Dipotassium monohydrogen phosphate Hydrogen dipotassium phosphate Potassium phosphate (dibasic) di-potassium hydrogen phosphate Dipotassium hydrogenorthophosphate Dipotassium acid phosphate Dipotassium hydrogen orthophosphate Kali phosphoricum
Full Description

Dipotassium phosphate (CAS 7758-11-4), dipotassium hydrogen phosphate, is an inorganic potassium phosphate salt. It is used as a buffering agent, sequestrant, and emulsifying salt, as a corrosion inhibitor in antifreeze systems, and as a nutrient in fermentation and culture media.

Frequently Asked Questions

What is dipotassium phosphate used for?

Dipotassium phosphate (dipotassium hydrogen phosphate) is an inorganic potassium phosphate salt used as a buffering agent and acidity regulator, a sequestrant, an emulsifying salt in processed-cheese systems, a corrosion inhibitor in antifreeze systems, and a potassium/phosphate nutrient in fermentation and culture media.

What is the difference between dipotassium phosphate and monopotassium phosphate?

Dipotassium phosphate (K2HPO4, CAS 7758-11-4) carries two potassium ions and is more alkaline; monopotassium phosphate (KH2PO4) carries one and is more acidic. They are paired to make pH buffers. Confirm the CAS on the CoA for the grade you need.

What is the CAS number and formula of dipotassium phosphate?

CAS 7758-11-4; the anhydrous form is K2HPO4 (listed as HK2O4P). It is the dibasic potassium orthophosphate. Each shipment is supplied with a CoA confirming identity and assay and a current SDS.

What is the HS code for dipotassium phosphate?

Dipotassium phosphate classifies under HS 2835.24 — phosphates of potassium. The CAS is 7758-11-4. Customs documentation and CoA accompany each bulk order.

How is dipotassium phosphate supplied in bulk?

It is typically supplied as a crystalline or granular solid in bags, supersacks, or drums to food, fermentation, and industrial buyers. Available grades and pricing are quote-dependent; submit a bulk RFQ with your quantity for a quote, CoA, and SDS.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.