Physical and chemical properties Physical state: solid Color: white Odor: odorless Ph: not available. Vapor pressure: not applicable. Viscosity: not applicable. Boiling point: not applicable. Freezing/melting point: 356 deg c Autoignition temperature: not applicable. Flash point: not applicable. Explosion limits, lower: not available. Explosion limits, upper: not available. Decomposition temperature: 400 deg c Solubility in water: not available. Specific gravity/density: 2.52 Molecular formula: kclo3 Molecular weight: 122.5495 Stability and reactivity Chemical stability: Stable under normal temperatures and pressures. Conditions to avoid: Incompatible materials, ignition sources, dust generation, combustible materials, reducing agents. Incompatibilities with other materials: Reducing agents. Hazardous decomposition products: Chlorine, irritating and toxic fumes and gases, oxygen, oxides of potassium. Hazardous polymerization: will not occur.