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| CAS No.: | 7447-40-7 |
| Formula: | Kcl |
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Potassium Chloride, Red is a variant of the metal halide salt, composed of potassium and chloride, colored red with iron oxide additives. It is odorless and appears as reddish granular crystals. The solid is readily soluble in water, and its solutions retain a salt-like taste. Red KCl is primarily used as an agricultural fertilizer for its potassium content and distinct color, which aids in even application and identification. It occurs naturally as the mineral sylvite but is typically dyed for specific agricultural and industrial uses.
Chemical Name: Potassium Chloride, Red
Molecular Formula: KCl
Molecular Weight: 74.55
CAS: 7447-40-7
Character: Reddish granular crystals or powder, odorless, with a salty taste.
Chemical & Physical Properties of Red Potassium Chloride
| Property | Value / Description |
|---|---|
| Appearance | Reddish Granular Crystals or Powder |
| Density | ≈1.98 g/cm³ at 25°C (lit.) |
| Boiling Point | ≈1420°C |
| Melting Point | ≈770°C (lit.) |
| Molecular Formula | KCl |
| Molecular Weight | 74.55 |
| Flash Point | Not Applicable (Non-flammable) |
| Exact Mass | 73.932564 |
| Index of Refraction | n20/D ≈1.334 |
| Storage Condition | Cool, dry place. No specific temperature sensitivity. |
| Water Solubility | ≈340 g/L (20°C) |
| Key Additive | Iron Oxide Pigment (Provides red color) |

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