Hey there! I’m a supplier of ferrous sulfate, and today I wanna talk about one of the most common questions I get: What is the density of ferrous sulfate? Ferrous Sulfate

First off, let’s get a bit of background. Ferrous sulfate, also known as iron(II) sulfate, is a chemical compound with the formula FeSO₄. It comes in different forms, like the heptahydrate (FeSO₄·7H₂O), monohydrate (FeSO₄·H₂O), and anhydrous (FeSO₄). Each form has its own unique properties, and density is one of them.
Density of Different Forms of Ferrous Sulfate
Heptahydrate (FeSO₄·7H₂O)
The heptahydrate form of ferrous sulfate is the most common one you’ll come across. It’s a bright blue – green crystal. The density of ferrous sulfate heptahydrate is approximately 1.898 g/cm³. This form is often used in agriculture as a fertilizer to correct iron deficiency in plants. It’s also used in water treatment to remove phosphorus and in the production of ink and pigments.
The reason it has this density is because of its molecular structure and the water molecules that are part of the crystal lattice. The water molecules add to the overall mass and volume of the compound, which affects the density.
Monohydrate (FeSO₄·H₂O)
The monohydrate form has a density of around 2.97 g/cm³. It’s less common than the heptahydrate but still has its uses. When the heptahydrate loses some of its water molecules through a process called dehydration, it can turn into the monohydrate. This form is more stable in certain conditions and is sometimes used in the pharmaceutical industry for iron supplements.
Anhydrous (FeSO₄)
The anhydrous form of ferrous sulfate, which has no water molecules in its structure, has a density of about 3.4 g/cm³. This is the densest form because there are no water molecules taking up extra space. Anhydrous ferrous sulfate is used in some industrial processes where the presence of water could be a problem, like in the production of certain types of steel.
Why Density Matters
The density of ferrous sulfate is important for several reasons. For us suppliers, it helps in packaging and shipping. We need to know how much space a certain amount of ferrous sulfate will take up so we can plan our storage and transportation.
In the agricultural industry, farmers need to know the density when they’re applying ferrous sulfate as a fertilizer. They need to measure the right amount to ensure they’re providing the correct dosage to their crops.
In the water treatment industry, density affects how the ferrous sulfate dissolves in water. A denser form might take longer to dissolve, which could impact the efficiency of the treatment process.
Our Ferrous Sulfate Offerings
As a supplier, we offer high – quality ferrous sulfate in all its forms. Whether you need the heptahydrate for your farm, the monohydrate for pharmaceutical use, or the anhydrous form for industrial applications, we’ve got you covered.
We source our ferrous sulfate from reliable manufacturers and conduct strict quality control checks. Our products meet all the relevant industry standards, so you can be confident in their quality.
How We Ensure Quality
We have a team of experts who are constantly monitoring the production process. They check the purity of the ferrous sulfate, making sure there are no impurities that could affect its performance. We also test the density of each batch to ensure it meets the expected values.
Our packaging is designed to keep the ferrous sulfate in good condition during storage and transportation. We use air – tight containers to prevent moisture from getting in, especially for the anhydrous form.
Customer Stories
We’ve had many satisfied customers over the years. One of our agricultural customers was struggling with iron deficiency in their crops. They tried different fertilizers, but nothing seemed to work. When they switched to our ferrous sulfate heptahydrate, they noticed a significant improvement in the health of their plants within a few weeks.
Another customer in the water treatment industry was having issues with the dissolution rate of the ferrous sulfate they were using. After switching to our product, they found that the density was just right, and the dissolution was much faster, improving the overall efficiency of their treatment process.
Contact Us for Your Ferrous Sulfate Needs

If you’re in the market for ferrous sulfate, whether it’s for agriculture, water treatment, pharmaceuticals, or any other application, we’d love to hear from you. We can provide you with detailed information about our products, including their density, purity, and pricing.
Potassium Nitrate We understand that every customer has different needs, and we’re committed to providing you with the best solution. So, don’t hesitate to reach out and start a conversation with us. We’re here to help you get the right ferrous sulfate for your specific requirements.
References
- CRC Handbook of Chemistry and Physics.
- Kirk – Othmer Encyclopedia of Chemical Technology.
Tianjin Topfert Agrochemical Co., Ltd
We’re well-known as one of the leading ferrous sulfate manufacturers and suppliers in China. Be free to wholesale high quality ferrous sulfate at competitive price from our factory. For quotation, contact us now.
Address: A-2-405, GuoXin Office, No.27, 2nd Street, TEDA Tianjin, China 300457
E-mail: sales@topfert.net
WebSite: https://www.topfert.net/