Anhydrous Sodium Sulfate Preparation and Its Various Applications

January 24, 2022

You might have heard of anhydrous sodium sulfate, but understanding what it actually is always a good call to address. Sodium Sulfate Anhydrous is one sodium salt form of sulfuric acid. It is also stated to be an electrolyte replenisher whose usage can be seen in isosmotic solutions. It ensures that the administration will not disturb the normal electrolyte balance and won’t lead to any form of excretion or water absorption and ions.

It is also known as Thenardite, and it has a white crystal-like solid appearance. It is quite stable in its chemical terms. Here, the density will be around 2.664 g/cm3. Then you have a boiling point of 1429 degrees C and a melting point of 884 degrees C. When it comes to normal temperature, it is fairly unresponsive to most oxidation reactions or any organic solvents.If you want, it can be well transformed by carbo-thermal reduction at a higher temperature to that of sodium sulfide.

How Is Anhydrous Sodium Sulfate Formed?

There are some steps that can result in the formation of sodium sulfate anhydrous. It is going to be the result of the direct reaction between concentrated sulfuric acid and sodium chloride. There are a few steps added to end up with the best anhydrous sodium sulfate you could possibly find, so let’s get into the points straight away.

  • • It will start off by crushing and then sieving the industrial salt.

  • • There will be a higher reaction in the temperature of salt with that of concentrating sulfuric acid within a weight ratio of 1 to 0.7. It helps in producing HCI gas and sodium sulfate.

  • • Then, the last step will be the cooling and crushing process of the sodium sulfate. Here, the technical aspect is pretty short and will produce higher quality items in its pure version of 99 to 99.3%.

  • • It might even end up producing 1.55 tonnes of around 31% concentrated HCI alongside one tonne of sodium sulfate.

Common Usage

You can see this anhydrous sodium sulfate in making detergents for washing clothes. It helps in bulking up the substance, making the detergent producers the largest consumers of anhydrous sodium sulfate. It won’t help with the cleaning but will pass through the system as an inexpensive pH-neutral material dissolving in warm water well. This material will primarily work as a desiccant and can attach multiple water molecules to form hydrates.

Application in Various Industries

  • TextileAnhydrous Sodium Sulfate is the retarding agent to lower the negative fiber charge. So, that makes it easier for dyes to enter textiles in a uniform manner and effectively. It won’t corrode the stainless steel vessels used for the purpose of dying.

  • Glass With anhydrous sodium sulfate by your side, you can avoid creating air bubbles in molten glass. It will act as an organic compound dryer and extract water from the organic compound.

  • Paper You can see the use of anhydrous sodium sulfate for paper pulp in the kraft process. The experts will heat up the wood chips first and then fill them with anhydrous sodium sulfate. It will reduce the sodium sulfate into sodium sulfide and split the cellulose bond of the wood.

  • Detergent The sodium sulfate anhydrous manufacturers have to mostly work with the detergent sector to get their products added into detergents as fillers. As a result, some people are gravitating toward this side.

No matter what the situation might be, Anhydrous Sodium Sulfate has its own benefits to address. So, understanding these application areas will make you understand them a bit more.

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