Molekula
Potassium dihydrogen citrate 96-102%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Potassium dihydrogen citrate (CAS 866-83-1) is a potassium salt of citric acid used primarily as a buffering agent, pH regulator, and chelating agent in pharmaceuticals, food, and cosmetics. It maintains acidity in formulations, enhances solubility, and stabilizes metal ions. This high-purity grade (96–102%) has the molecular formula KH₂C₆H₅O₇ and a molecular weight of 230.21 g/mol. It is non-hazardous (no signal word) and stores safely at ambient conditions. Molekula supplies Potassium dihydrogen citrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
| Water | ≤0.5% |
| Chloride (Cl-) | ≤0.1% |
| Purity | ≥99% |
| Heavy Metals (Pb) | ≤0.01% |
| Lead (Pb) | ≤0.01% |
| Arsenic (As) | ≤0.01% |
| Sulphates (SO4)(2-) | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90034390 |
| CAS Number | 866-83-1 |
| IUPAC Name | potassium 3-carboxy-3,5-dihydroxy-5-oxopentanoate |
| EC Number | 212-753-4 |
| Molecular Formula | KH2C6H5O7 |
| Molecular Weight | 230.21 |
| Exact Mass | 229.9829 |
| SMILES | C(C(=O)O)C(CC(=O)[O-])(C(=O)O)O.[K+] |
| InChIKey | WKZJASQVARUVAW-UHFFFAOYSA-M |
| InChI | InChI=1S/C6H8O7.K/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);/q;+1/p-1 |
| PubChem CID | 23678371 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29181550 |
| Tariff Code | 2918150090 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is potassium dihydrogen citrate primarily used for?
Potassium dihydrogen citrate is commonly used as a buffering agent, pH adjuster, and chelating agent in pharmaceuticals, food, and cosmetics, as well as in analytical chemistry for titrations.
What is the chemical formula and molecular weight of potassium dihydrogen citrate?
The chemical formula is **KH₂C₆H₅O₇**, and the molecular weight is **230.21 g/mol**.
How should potassium dihydrogen citrate be stored?
Store in a tightly sealed container at **ambient temperature** in a dry, well-ventilated area, away from moisture and incompatible substances.
What purity grades of potassium dihydrogen citrate does Molekula supply?
Molekula supplies potassium dihydrogen citrate at **96–102% purity** (technical/food-grade).
Can Molekula supply potassium dihydrogen citrate in bulk quantities?
Yes, we offer bulk packaging options (e.g., 25 kg drums, 1 MT big bags) for industrial and commercial customers—please contact us for pricing and lead times.
What documentation is provided with each order of potassium dihydrogen citrate?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a packing list. Additional documentation (e.g., batch-specific reports) is available upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.