1. **Chemical Properties**: Potassium acetate is a salt composed of potassium cations (K⁺) and acetate anions (CH3COO⁻). It has a molecular weight of approximately 98.14 g/mol.

2. **Preparation**: Potassium acetate can be produced by the neutralization reaction between acetic acid (CH3COOH) and potassium hydroxide (KOH):

CH3COOH + KOH → CH3COOK + H2O

3. **Uses**:
– **Deicing Agent**: Potassium acetate is commonly used as a deicer, particularly in aviation and on airport runways where environmental concerns are important. It is effective at melting ice and snow at temperatures as low as -60°C (-76°F).
– **Chemical Industry**: It is used as a catalyst in various organic synthesis reactions and as a precursor for the production of other chemicals.
– **Food Industry**: Potassium acetate is sometimes used in the food industry as a preservative or acidity regulator. It can be found in certain processed foods and is generally recognized as safe (GRAS) when used in accordance with good manufacturing practices.

4. **Environmental Impact**: Potassium acetate is less corrosive and less harmful to vegetation and aquatic life compared to chloride-based deicers like sodium chloride (rock salt) or calcium chloride. It is also less likely to cause damage to infrastructure such as concrete.

5. **Safety**: While potassium acetate is generally considered safe for its intended uses, it is important to handle it with care as it is still a chemical compound. Inhalation or ingestion of large quantities can be harmful, and prolonged exposure to skin or eyes may cause irritation.

Overall, potassium acetate serves various practical purposes across different industries, with its effectiveness as a deicing agent and relatively lower environmental impact being notable features.

extended reading：

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