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Is potassium formate (CAS 590-29-4) a base or acid?

Nov 12, 2025 Leave a message

CAS 590-29-4 Potassium formate (CHKO₂) is the potassium salt of formic acid. It is a white, crystalline solid that is highly soluble in water. This high solubility is one of the key properties that makes potassium formate so effective in many applications. When dissolved in water, it forms a clear, colourless liquid known as potassium formate brine or solution. Potassium formate solution has a very low freezing point and a high density - two critical characteristics for its major uses.

 

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Is potassium formate (CAS 590-29-4) a base or acid?

Potassium formate (HCOOK) is basic. HCOOK is a salt formed from a strong base (KOH) and a weak acid (formic acid).

It is a salt that produces a slightly alkaline solution when dissolved in water. This is because it is formed from a weak acid (formic acid) and a strong base (potassium hydroxide).

 

How is potassium formate (CAS 590-29-4) made?

Potassium formate is generally prepared in the following ways:

Formic acid reacts with potassium hydroxide to produce potassium formate:

2HCOOH + KOH → HCOOK + H2O

Formic acid reacts with potassium oxide to produce potassium formate:

2HCOOH + K2O → 2HCOOK

 

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Packaging 

Galvanized iron drum packing : 180kgs per drum,14.4tons per 20'FCL
 

Storage condistion

Store in a cool, ventilated and dry place, avoid sunlight, and do not get close to the fire source. Pay attention to handle with care when handling, and transport according to the provisions of toxic substances

 

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