Ferrous Sulfate Crystallization

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In summary, ferrous sulfate crystallization is the process of forming solid crystals of ferrous sulfate, a chemical compound used in various industries. Its purpose is to produce a pure and concentrated form of ferrous sulfate by removing impurities. The steps involved include dissolving, adjusting pH and temperature, and separating and drying the crystals. The rate of crystallization can be affected by factors such as temperature, pH, concentration, and impurities. Ferrous sulfate crystals are used in water treatment, agriculture, and pharmaceuticals, as well as in the production of pigments and dyes.
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Thermo
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I am trying to obtain ferrous sulfate heptahydrate crystal from a liquor which is rich in Fe2+ and Fe3+ sulfate and sulfuric acid. However I can only achieve crystal (more likely powder) form of FeSO4.7H2O (37%) mixed with 58% Rhomboclase (H5O2)+Fe+++(SO4)2•2(H2O) with minor impurities. How can I achieve pure FeSO4.7H2O under these conditions? The liquor is too acidic and the pH is -0,2. I tried to reduce iron (III) ions to iron (II) with reducing agents but that didn't work well.
 
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Any ideas?
 

FAQ: Ferrous Sulfate Crystallization

What is ferrous sulfate crystallization?

Ferrous sulfate crystallization is the process of forming solid crystals of ferrous sulfate, a chemical compound composed of iron, sulfur, and oxygen. It is commonly used in industries such as water treatment, agriculture, and pharmaceuticals.

What is the purpose of ferrous sulfate crystallization?

The purpose of ferrous sulfate crystallization is to produce a pure and concentrated form of ferrous sulfate that can be used for various applications. This process helps to remove impurities and create a more stable and usable product.

What are the steps involved in ferrous sulfate crystallization?

The steps involved in ferrous sulfate crystallization include dissolving ferrous sulfate in water, adjusting the pH and temperature of the solution, and allowing the crystals to form and grow over time. The crystals are then separated from the liquid and dried to obtain the final product.

What factors affect the rate of ferrous sulfate crystallization?

The rate of ferrous sulfate crystallization can be affected by various factors such as temperature, pH, concentration of the solution, and the presence of impurities. Higher temperatures and more acidic conditions generally result in faster crystallization, while impurities can slow down the process.

What are the main uses of ferrous sulfate crystals?

Ferrous sulfate crystals have many uses, including water treatment to remove impurities and reduce algae growth, as a soil amendment in agriculture to provide iron and sulfur for plants, and as a supplement in animal feed. It is also used in the production of pigments, dyes, and pharmaceuticals.

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