What is the molecular weight of iron free aluminum sulfate?
Jul 28, 2025
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Hey there! As a supplier of iron free aluminum sulfate, I often get asked about the molecular weight of this stuff. So, let's dive right into it and break it down in a way that's easy to understand.
First off, let's talk about what iron free aluminum sulfate actually is. It's a chemical compound that's used in a bunch of different industries, like water treatment, paper manufacturing, and even in some cosmetics. The "iron free" part is important because iron can sometimes cause unwanted reactions or color changes in certain applications. So, having an iron free version ensures better quality and performance.


Now, to figure out the molecular weight of iron free aluminum sulfate, we need to know its chemical formula. The formula for aluminum sulfate is Al₂(SO₄)₃. To calculate the molecular weight, we add up the atomic weights of all the atoms in the formula.
The atomic weight of aluminum (Al) is about 26.98 g/mol. Since there are 2 aluminum atoms in the formula, that gives us 2 x 26.98 = 53.96 g/mol.
The atomic weight of sulfur (S) is around 32.06 g/mol. There are 3 sulfur atoms in the formula, so 3 x 32.06 = 96.18 g/mol.
The atomic weight of oxygen (O) is approximately 16.00 g/mol. And there are 12 oxygen atoms in the formula (4 oxygen atoms in each sulfate group, and there are 3 sulfate groups), so 12 x 16.00 = 192.00 g/mol.
To find the total molecular weight, we add these values together: 53.96 + 96.18 + 192.00 = 342.14 g/mol. So, the molecular weight of iron free aluminum sulfate is about 342.14 g/mol.
But why does the molecular weight matter? Well, it's crucial in a lot of chemical calculations. For example, in water treatment, knowing the molecular weight helps in determining the right dosage of iron free aluminum sulfate to use. If you're trying to remove impurities from water, you need to add the correct amount of the compound based on its molecular weight to get the best results.
In paper manufacturing, the molecular weight affects the properties of the paper. It can influence things like the paper's strength, smoothness, and brightness. So, having a good understanding of the molecular weight allows manufacturers to produce high - quality paper.
As a supplier, I've seen firsthand how important it is to have a reliable source of iron free aluminum sulfate. That's why we offer different forms of it, like Iron Free Aluminum Sulphate Flakes. These flakes are easy to handle and dissolve, making them a popular choice for many applications.
We also have Aluminium Sulphate 17. This particular product has a specific concentration that's well - suited for certain industrial processes. And our Non Ferric 17% Aluminum Sulphate Flakes are great for applications where a low - iron content is essential.
When you're looking for an iron free aluminum sulfate supplier, you want someone who can provide consistent quality. We make sure that our products meet the highest standards. We use advanced manufacturing processes to ensure that the molecular weight is accurate and that there are no unwanted impurities.
If you're in the market for iron free aluminum sulfate, whether it's for water treatment, paper manufacturing, or any other application, we'd love to talk to you. We can offer you the best products at competitive prices. Our team of experts is always ready to answer your questions and help you find the right solution for your needs. So, don't hesitate to reach out and start a conversation about your procurement requirements.
References
- Atkins, P., & de Paula, J. (2006). Physical Chemistry. Oxford University Press.
- Chang, R. (2010). Chemistry. McGraw - Hill Education.
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