Ammonium formate is an organic ammonium salt produced by the neutralization reaction of formic acid and ammonia. It is a white crystalline powder with strong hygroscopicity and should be stored sealed and dry. It is stable at room temperature, but easily decomposes into ammonia, carbon monoxide and hydrogen at high temperatures (about 180℃). Its aqueous solution is weakly acidic.

1. Organic synthesis: Used as a reducing agent, hydrogen source, catalyst, dehalogenation reagent and reaction medium, replacing highly toxic reducing agents in catalytic hydrogenation.

2. Analytical chemistry: Mobile phase additive for liquid chromatography (LC-MS), buffer, analytical reagent.

3. Pharmaceutical industry: Intermediate for drug synthesis, pharmaceutical raw material.

4. Textile industry: Color fixing agent for fabric dyeing, stripping agent for unfixed color.

5. Electronics and metal: Cleaning agent for electronic components, metal surface treatment agent.

6. Others: Additive for water-based coatings, preservative, leather tanning agent.