What are the chemical properties of Sodium Metaaluminate Liquid?

Oct 07, 2025

Hey there! As a supplier of Sodium Metaaluminate Liquid, I'm super stoked to dive into the chemical properties of this cool stuff with you. Sodium Metaaluminate Liquid, also known as sodium aluminate liquid, is a key player in various industries, and understanding its chemical properties can give you a better idea of why it's so widely used.

Basic Chemical Composition

First off, let's talk about what's in it. Sodium Metaaluminate Liquid is basically a solution that contains sodium metaaluminate (NaAlO₂). It's formed when aluminum hydroxide reacts with sodium hydroxide. This reaction is pretty straightforward:

Al(OH)₃ + NaOH → NaAlO₂ + 2H₂O

The resulting liquid has a clear to slightly yellowish appearance, depending on the purity and concentration.

Solubility and pH

One of the most important chemical properties of Sodium Metaaluminate Liquid is its solubility. It's highly soluble in water, which makes it really easy to work with in aqueous solutions. When you dissolve it in water, it dissociates into sodium ions (Na⁺) and metaaluminate ions (AlO₂⁻).

NaAlO₂ → Na⁺ + AlO₂⁻

This dissociation has a big impact on the pH of the solution. Sodium Metaaluminate Liquid is a strong alkaline substance, and when dissolved in water, it can significantly increase the pH. The pH of a typical Sodium Metaaluminate Liquid solution can range from 11 to 13, depending on the concentration.

The high pH is due to the hydrolysis of the metaaluminate ions in water:

AlO₂⁻ + 2H₂O ⇌ Al(OH)₃ + OH⁻

The hydroxide ions (OH⁻) released in this reaction make the solution alkaline. This alkaline nature is what makes Sodium Metaaluminate Liquid useful in many applications, especially in industries where a high pH is required.

Reactivity with Acids

Sodium Metaaluminate Liquid is highly reactive with acids. When it reacts with an acid, it forms aluminum salts and water. For example, when it reacts with hydrochloric acid (HCl), the following reaction occurs:

NaAlO₂ + 4HCl → AlCl₃ + NaCl + 2H₂O

This reaction is exothermic, which means it releases heat. The reaction rate depends on the concentration of the acid and the temperature. In industrial processes, this reactivity is often used to neutralize acidic waste streams or to adjust the pH of solutions.

Precipitation Reactions

Another important chemical property of Sodium Metaaluminate Liquid is its ability to form precipitates. When it reacts with certain metal ions, it can form insoluble metal aluminates. For example, when it reacts with calcium ions (Ca²⁺), it forms calcium aluminate precipitate:

Liquid Sodium MetaaluminateSodium Metaaluminate For Water Treatment

2NaAlO₂ + Ca²⁺ → Ca(AlO₂)₂↓ + 2Na⁺

This precipitation reaction is used in water treatment processes to remove metal ions from water. By adding Sodium Metaaluminate Liquid to water containing metal ions, the metal ions are precipitated out as metal aluminates, which can then be easily removed by filtration.

Applications Based on Chemical Properties

The unique chemical properties of Sodium Metaaluminate Liquid make it suitable for a wide range of applications. Here are some of the most common ones:

Water Treatment

In water treatment, the high pH and precipitation properties of Sodium Metaaluminate Liquid are used to remove impurities from water. It can be used to coagulate and flocculate suspended solids, remove heavy metals, and adjust the pH of water. You can learn more about its use in water treatment here.

White Carbon Black Production

Sodium Metaaluminate Liquid is also used in the production of white carbon black. In this process, it reacts with silica to form a gel-like substance, which is then processed to produce white carbon black. The high pH and reactivity of Sodium Metaaluminate Liquid are crucial for this reaction. Check out more details about its use in white carbon black production here.

Other Applications

There are many other applications of Sodium Metaaluminate Liquid, such as in the production of refractory materials, ceramics, and catalysts. Its alkaline nature and reactivity make it a versatile chemical in various industries. You can find more information about Liquid Sodium Metaaluminate on our website.

Quality and Safety

As a supplier, we take quality and safety very seriously. Our Sodium Metaaluminate Liquid is produced under strict quality control measures to ensure its purity and consistency. We also provide detailed safety data sheets (SDS) to help you handle and use the product safely.

Contact Us for Procurement

If you're interested in purchasing Sodium Metaaluminate Liquid for your business, we'd love to hear from you. Our team of experts can provide you with more information about the product, its applications, and pricing. Whether you need a small quantity for testing or a large-scale supply for your production, we can meet your needs. Just reach out to us, and let's start a conversation about how Sodium Metaaluminate Liquid can benefit your operations.

References

  • "Handbook of Inorganic Chemicals" by George W. C. Kaye
  • "Industrial Chemistry" by Warren F. Langes