Product Name: Potassium Citrate (Tribasic) – Food Grade & Industrial Grade
Chemical Name: Tripotassium 2‑hydroxy‑1,2,3‑propane‑1,2,3‑tricarboxylate
CAS Number: 6100‑05‑6
EINECS Number: 212‑755‑5
Molecular Formula: K₃C₆H₅O₇·H₂O
Molecular Weight: 324.41 g/mol
1. Product Description
Potassium Citrate is the tripotassium salt of citric acid. It appears as a white crystalline powder or granules, readily soluble in water, and almost insoluble in alcohol. It is widely used as a buffering agent, sequestrant, electrolyte replenisher, and intermediate in both food and industrial applications.
Food Grade: Meets FCC/E332 standards, suitable for beverage, dairy, and pharmaceutical use.
Industrial Grade: Used in chemical synthesis, electroplating, detergents, and other non‑food applications.
2. Typical Properties
Food Grade (FCC / E332)
| Item | Specification |
|---|
| Appearance | White crystalline powder or granules |
| Assay (as K₃C₆H₅O₇) | 99.0 – 100.5 % |
| pH (5% solution) | 7.5 – 9.0 |
| Moisture | ≤ 4.0 % |
| Heavy Metals (as Pb) | ≤ 10 ppm |
| Arsenic (As) | ≤ 1 ppm |
| Chloride (Cl⁻) | ≤ 50 ppm |
| Sulfate (SO₄²⁻) | ≤ 150 ppm |
| Oxalate | ≤ 300 ppm |
| Lead (Pb) | ≤ 2 ppm |
| Bacterial Count | ≤ 100 CFU/g |
| Yeast & Mold | ≤ 10 CFU/g |
| Pathogens | Negative |
| Item | Specification |
|---|
| Appearance | White to off‑white crystalline powder |
| Assay (as K₃C₆H₅O₇) | ≥ 98.0 % |
| pH (5% solution) | 7.0 – 9.5 |
| Moisture | ≤ 5.0 % |
| Heavy Metals (as Pb) | ≤ 20 ppm |
| Chloride (Cl⁻) | ≤ 100 ppm |
| Sulfate (SO₄²⁻) | ≤ 300 ppm |
| Oxalate | ≤ 500 ppm |
3. Applications
Food Grade:
Acidulant, buffering agent, and flavor enhancer in beverages and dairy products
Electrolyte replenisher in nutritional supplements and oral rehydration solutions
Sequestrant to stabilize color, flavor, and vitamins in processed food
Used in pharmaceutical formulations to control urinary pH
Industrial Grade:
Chelating agent and pH regulator in detergents and cleaners
Additive in electroplating and metal finishing
Used in specialty chemical synthesis and as an intermediate
4. Packaging
5. Storage & Shelf Life
Store in a cool, dry, and well‑ventilated area away from moisture and direct sunlight
Shelf life: 24 months in unopened original packaging
6. Safety & Regulatory Information
7. Quality Assurance
Each batch is manufactured under strict quality control and accompanied by a Certificate of Analysis (COA).
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