What are the raw materials for producing Calcium Formate E238?

Aug 04, 2025

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Hey there! As a supplier of Calcium Formate E238, I often get asked about the raw materials used in its production. So, I thought I'd write this blog to share some insights on that.

Calcium Formate E238 is a versatile compound with various applications, especially in the feed industry. It's used as a Feed Grade Calcium Formate, Formic Acid Supplement, and Antibacterial Agent. But what goes into making it? Let's dive in.

The Key Raw Materials

1. Formic Acid

Formic acid is one of the primary raw materials for producing Calcium Formate E238. It's a colorless, pungent-smelling liquid with the chemical formula HCOOH. Formic acid occurs naturally in some insects, like ants, and is also produced synthetically on an industrial scale.

In the production process, formic acid reacts with a calcium source to form Calcium Formate. The reaction is a simple acid-base neutralization reaction. Here's the chemical equation:

2HCOOH + Ca(OH)₂ → Ca(HCOO)₂ + 2H₂O

This reaction shows that two moles of formic acid react with one mole of calcium hydroxide to produce one mole of Calcium Formate and two moles of water. The quality of formic acid used is crucial as it directly affects the purity and quality of the final Calcium Formate product.

2. Calcium Hydroxide

Calcium hydroxide, also known as slaked lime, is another essential raw material. It has the chemical formula Ca(OH)₂ and is a white powder. Calcium hydroxide is commonly obtained by adding water to calcium oxide (quicklime).

The reaction between calcium hydroxide and formic acid is exothermic, which means it releases heat. This heat can be used to speed up the reaction and improve the efficiency of the production process. The purity of calcium hydroxide is also important to ensure that the final Calcium Formate product meets the required quality standards.

3. Water

Water plays a vital role in the production of Calcium Formate E238. It's used as a solvent to dissolve the reactants and facilitate the chemical reaction. Water also helps in controlling the temperature of the reaction mixture and preventing the formation of unwanted by-products.

During the production process, water is added in a controlled manner to ensure that the reaction proceeds smoothly. After the reaction is complete, the water is removed from the product through evaporation or other separation techniques.

The Production Process

The production of Calcium Formate E238 typically involves the following steps:

  1. Mixing the Reactants: Formic acid and calcium hydroxide are mixed in a reactor vessel. The ratio of formic acid to calcium hydroxide is carefully controlled to ensure complete reaction.
  2. Reaction: The mixture is heated to a specific temperature to initiate the reaction. The reaction is exothermic, so the temperature needs to be monitored and controlled to prevent overheating.
  3. Neutralization: The reaction continues until the pH of the mixture reaches a neutral value. This indicates that the formic acid has completely reacted with the calcium hydroxide.
  4. Filtration: The reaction mixture is then filtered to remove any impurities or unreacted solids.
  5. Evaporation: The filtrate, which contains Calcium Formate and water, is heated to evaporate the water. This results in the formation of a concentrated solution of Calcium Formate.
  6. Crystallization: The concentrated solution is cooled to allow the Calcium Formate to crystallize. The crystals are then separated from the mother liquor by filtration or centrifugation.
  7. Drying: The Calcium Formate crystals are dried to remove any remaining moisture. The dried product is then ready for packaging and distribution.

Quality Control

As a supplier, we take quality control very seriously. We ensure that all the raw materials used in the production of Calcium Formate E238 meet the highest quality standards. We also have strict quality control measures in place during the production process to ensure that the final product is of consistent quality.

Some of the quality control tests we perform include:

Antibacterial AgentFeed Grade Calcium Formate

  • Purity Analysis: We use various analytical techniques, such as high-performance liquid chromatography (HPLC) and titration, to determine the purity of the Calcium Formate product.
  • Particle Size Analysis: The particle size of the Calcium Formate crystals can affect its solubility and performance. We use laser diffraction or sieve analysis to measure the particle size distribution.
  • Moisture Content Analysis: The moisture content of the product is important as it can affect its stability and shelf life. We use a moisture analyzer to measure the moisture content.

Applications of Calcium Formate E238

Calcium Formate E238 has a wide range of applications, especially in the feed industry. Here are some of its main applications:

  • Feed Additive: As a Feed Grade Calcium Formate, it can improve the digestibility of feed and enhance the growth performance of animals. It also has antibacterial properties, which can help prevent the growth of harmful bacteria in the animal's digestive system.
  • Concrete Accelerator: Calcium Formate can be used as an accelerator in concrete to speed up the setting and hardening process. This is especially useful in cold weather conditions.
  • Textile Industry: It's used in the textile industry as a mordant in dyeing processes. A mordant helps the dye to adhere to the fabric and improves the color fastness.
  • Leather Industry: Calcium Formate is used in the leather industry to neutralize the lime in the leather tanning process.

Why Choose Our Calcium Formate E238

As a supplier, we offer high-quality Calcium Formate E238 at competitive prices. Here are some reasons why you should choose our product:

  • Quality Assurance: We have a strict quality control system in place to ensure that our products meet the highest quality standards.
  • Reliable Supply: We have a large production capacity and a stable supply chain, which ensures that we can meet your demand on time.
  • Technical Support: Our team of experts can provide you with technical support and advice on the use of our products.
  • Customized Solutions: We can customize our products according to your specific requirements.

If you're interested in purchasing Calcium Formate E238, please don't hesitate to contact us for more information and to start a procurement negotiation. We're looking forward to working with you!

References

  • Kirk-Othmer Encyclopedia of Chemical Technology
  • Ullmann's Encyclopedia of Industrial Chemistry
  • Journal of Agricultural and Food Chemistry

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