Potassium bicarbonate is soluble in water, and is often found added to bottled water to affect taste; however, it is not soluble in alcohol. Decomposition of the substance occurs between 100 °C and 120 °C into K₂CO₃ (potassium carbonate), H₂O (water), and CO₂ (carbon dioxide). In concentrations greater than 0.5%, KHCO₃ can have toxic effects on plants^{[citation needed]} (potassium bicarbonate has widespread use in crops, especially for neutralizing acidic soil, and is also under consideration as an organic fungicide^[3]), although there is no evidence of human carcinogenicity, no adverse effects of overexposure, and an undetermined LD₅₀.