POTASSIUM CITRATE- ▸ Acidity regulation: Food-additive buffer and pH adjuster
- ▸ Sequestrant/chelating: Binds metal ions to stabilize formulations
- ▸ Emulsifying salt: Stabilizer and emulsifying salt in food systems
- ▸ Intermediate: Chemical intermediate
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.
Request SDS →Potassium citrate (CAS 866-84-2) is anhydrous tripotassium citrate, the potassium salt of citric acid. Established uses include acidity regulation and buffering, sequestrant and chelating duty, and stabilizer and emulsifying-salt function in food and beverage applications. It also serves as a chemical intermediate.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 212-755-5
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Solutions Using This Product
Process-solution guides on this site that specify this chemistry:
Frequently Asked Questions
What is potassium citrate USP FCC K used for?
This grade is anhydrous tripotassium citrate (CAS 866-84-2), the potassium salt of citric acid. In food, beverage, and industrial formulation it serves as an acidity regulator/buffer, a sequestrant and chelating agent for metal ions, and a stabilizer/emulsifying salt. It is also used as a chemical intermediate.
Is this anhydrous or monohydrate potassium citrate?
This is the anhydrous form (CAS 866-84-2, formula C6H5K3O7). It differs from tripotassium citrate monohydrate (CAS 6100-05-6), which contains water of crystallization. Confirm the CAS you need so we ship the correct grade.
What is the molecular weight of tripotassium citrate?
Anhydrous tripotassium citrate (C6H5K3O7) has a molecular weight of approximately 306.4 g/mol. The monohydrate (C6H7K3O8) is approximately 324.4 g/mol. We provide full identity data on the CoA and SDS.
What grades and packaging are available in bulk?
We supply USP/FCC-compliant anhydrous potassium citrate in industrial packaging including bags, drums, and totes, with a Certificate of Analysis per lot. Specify your required grade and volume for a quote.
What is the cost of bulk potassium citrate USP FCC K?
Bulk pricing varies by volume, packaging, and grade. Submit a quote request with your target quantity and we will return current pricing along with supporting CoA and SDS documentation; we do not list fixed retail prices.
What is the REACH and TSCA regulatory status of Potassium Citrate (Tripotassium Citrate, Anhydrous)?
Potassium Citrate (Tripotassium Citrate, Anhydrous) (CAS 866-84-2) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 212-755-5).