Product Details
| Product Name: Potassium Citrate | CAS No.: 866-84-2 |
| EC-No.: 212-755-5 | Min. Order: 1ton |
| Purity: 99% | Supply Ability: 1000T/M |
| Release date: 2025/11/04 |
1. Product Identification
Chemical Name: Potassium Citrate Monohydrate
Synonyms: Tripotassium Citrate, Potassium Citrate Monohydrate
CAS Number: 866-84-2
Molecular Formula: K?C?H?O?·H?O
Molecular Weight: 324.41 g/mol
2. Description
Potassium Citrate is a white, granular, or crystalline powder, odorless, with a saline taste, freely soluble in water, practically insoluble in alcohol.
3. Typical Chemical Properties
| Parameter | Industrial Grade | Food / Pharma Grade (FCC / USP / E332) |
|---|---|---|
| Assay (as K?C?H?O?·H?O) | ≥ 98.0 % | 99.0 – 101.0 % (on dry basis) |
| Appearance | White to off-white crystals or granules | White, free-flowing crystals or granules |
| Loss on Drying (180 °C) | ≤ 4.0 % | 3.0 – 4.0 % (monohydrate spec) |
| Water Insoluble Matter | ≤ 0.1 – 0.2 % | ≤ 0.1 % |
| Chloride (Cl?) | ≤ 0.05 % | ≤ 0.005 % |
| Sulfate (SO?2?) | ≤ 0.05 % | ≤ 0.015 % |
| Oxalate (C?O?2?) | ≤ 0.03 % | ≤ 0.03 % |
| Heavy Metals (as Pb) | ≤ 20 ppm (typical) | ≤ 5 ppm |
| Lead (Pb) | — | ≤ 2 ppm |
| Arsenic (As) | — | ≤ 3 ppm |
| Cadmium (Cd) | — | ≤ 1 ppm |
| Mercury (Hg) | — | ≤ 1 ppm |
| pH (5% solution at 25 °C) | 7.5 – 9.0 | 7.5 – 9.0 |
4. Physical Properties
Melting Point: Decomposes above 230 °C
Bulk Density: 0.8 – 1.0 g/cm3
Solubility in Water (20 °C): Freely soluble (~200 g/L)
Hygroscopicity: Slightly hygroscopic; absorbs moisture from air if exposed
5. Applications
Industrial Grade: Detergents, cleaners, water softeners, plating solutions, buffering agent in industrial processes.
Food / Pharma Grade: Food additive (E332), buffering agent, emulsifier, sequestrant, pH control agent, potassium supplement, used in pharmaceuticals for management of kidney stones and metabolic acidosis.
6. Packaging
Industrial Grade: 25 kg multi-ply bags or big bags, moisture-protected.
Food / Pharma Grade: 25 kg net food-grade polyethylene bags with inner liner, labeled with lot number and production date, compliant with food contact regulations.
7. Storage & Shelf Life
Store in a cool, dry place, away from moisture and strong acids.
Keep containers tightly closed to prevent caking and contamination.
Typical shelf life: 24 months under proper storage conditions.
8. Safety & Handling
Stable, non-combustible under normal conditions.
Avoid inhalation of dust and contact with eyes.
Use PPE (dust mask, goggles, gloves) when handling bulk material.
Refer to Safety Data Sheet (SDS) for first aid measures, accidental release, and disposal guidelines.
For more information, please visit this website：https://www.khonorchem.com
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