Product Details
| Product Name: Potassium Chloride | CAS No.: 7447-40-7 |
| EC-No.: 231-211-8 | Min. Order: 1ton |
| Purity: 99% | Supply Ability: 1000T/M |
| Release date: 2025/11/04 |
1. Product Identification
Chemical Name: Potassium Chloride
Synonyms: Muriate of Potash, KCl
CAS Number: 7447-40-7
Molecular Formula: KCl
Molecular Weight: 74.55 g/mol
2. Description
Potassium Chloride is a white crystalline powder or granules, odorless, with a saline taste. It is freely soluble in water, slightly soluble in glycerol, and insoluble in alcohol.
3. Typical Chemical Properties
| Parameter | Industrial Grade | Food Grade (FCC / E508) |
|---|---|---|
| Assay (as KCl, dry basis) | ≥ 98.0 – 99.5 % | ≥ 99.0 % |
| Appearance | White to off-white crystals or powder | White, free-flowing crystals or granules |
| Loss on Drying (105 °C) | ≤ 0.5 % | ≤ 1.0 % |
| Water Insoluble Matter | ≤ 0.2 – 0.5 % | ≤ 0.1 % |
| Sodium (Na) | ≤ 0.5 % | ≤ 0.5 % |
| Calcium (Ca) | ≤ 0.02 % | ≤ 0.01 % |
| Magnesium (Mg) | ≤ 0.01 % | ≤ 0.01 % |
| Sulfate (SO₄²⁻) | ≤ 0.1 % | ≤ 0.1 % |
| Bromide (Br⁻) | Typically ≤ 0.3 % | Passes FCC limit |
| Acidity / Alkalinity | Slightly acidic to neutral | Passes FCC test (neutral to slightly alkaline) |
| 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) | ~ 6.5 – 7.5 | 6.5 – 7.5 |
4. Physical Properties
Melting Point: ~ 770 – 775 °C
Boiling Point: > 1,400 °C (decomposes)
Bulk Density: ~ 1.98 – 2.0 g/cm³
Solubility in Water (20 °C): approx. 34 g / 100 g water
Appearance: Crystalline solid, non-hygroscopic when stored properly
5. Applications
Industrial Grade: Fertilizer production, chemical manufacturing, oilfield fluids, metal processing, water treatment, fluxes, laboratory reagent.
Food Grade: Food additive (E508), salt substitute, flavor enhancer, electrolyte replenisher, nutritional supplement, pH control agent.
6. Packaging
Industrial Grade: 25 kg bags, 50 kg bags, or bulk big-bags; moisture-protected packaging.
Food Grade: Food-contact compliant polyethylene or multi-layer paper bags, 25 kg net; sealed and labeled with batch number and production date.
7. Storage & Shelf Life
Store in a cool, dry, well-ventilated place.
Keep container tightly closed to avoid moisture absorption and caking.
Shelf life under proper storage: typically 24–36 months.
8. Safety & Handling
Non-flammable, stable under normal conditions.
Avoid inhalation of dust; use appropriate PPE (gloves, goggles, dust mask).
Refer to Safety Data Sheet (SDS) for detailed information on hazards, first aid, and disposal.
For more information, please visit this website:https://www.khonorchem.com
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- Since: 2025-04-07
- Address: C-309, No. 12 Yuzhou S. Rd, Haizhou, Lianyungang, Jiangsu, China

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