What is the molar mass of Sodium Aluminate 1302 - 42 - 7?
Aug 19, 2025
Sodium aluminate, identified by the CAS number 1302 - 42 - 7, is a compound with significant industrial applications. As a supplier of 1302 - 42 - 7 Sodium Aluminate, I am often asked about its molar mass, which is a fundamental concept in chemistry that has implications for both scientific research and industrial production.
Understanding Molar Mass
Before delving into the molar mass of sodium aluminate, it is essential to understand what molar mass is. Molar mass is defined as the mass of one mole of a substance, expressed in grams per mole (g/mol). A mole is a unit that represents a specific number of particles (atoms, molecules, or ions), specifically 6.022×10²³ particles, known as Avogadro's number. The molar mass of a compound is calculated by adding up the atomic masses of all the atoms in its chemical formula.
Chemical Formula of Sodium Aluminate
The chemical formula of sodium aluminate can vary depending on its composition. The most common form of sodium aluminate has the formula NaAlO₂. To calculate the molar mass of NaAlO₂, we need to know the atomic masses of sodium (Na), aluminum (Al), and oxygen (O).
The atomic mass of sodium (Na) is approximately 22.99 g/mol, the atomic mass of aluminum (Al) is about 26.98 g/mol, and the atomic mass of oxygen (O) is around 16.00 g/mol.
Calculating the Molar Mass of NaAlO₂
In the formula NaAlO₂, there is one sodium atom, one aluminum atom, and two oxygen atoms. We calculate the molar mass as follows:
- Contribution from sodium: 1 × 22.99 g/mol = 22.99 g/mol
- Contribution from aluminum: 1 × 26.98 g/mol = 26.98 g/mol
- Contribution from oxygen: 2 × 16.00 g/mol = 32.00 g/mol
The molar mass of NaAlO₂ is the sum of these contributions:
Molar mass of NaAlO₂ = 22.99 g/mol + 26.98 g/mol+ 32.00 g/mol = 81.97 g/mol
Significance of Molar Mass in Industrial Applications
The molar mass of sodium aluminate is crucial in various industrial processes. For example, in the production of Sodium Aluminate for Decorative Base Paper, accurate knowledge of the molar mass is necessary for precise formulation. When formulating the chemical mixtures for decorative base paper, the amount of sodium aluminate needed is determined based on its molar mass. This ensures that the desired chemical reactions occur and that the final product meets the required quality standards.
In the case of 1302 - 42 - 7 Sodium Aluminate, which is used in multiple industries, molar mass calculations are essential for determining the correct dosage in water treatment processes. Sodium aluminate is often used as a coagulant aid in water treatment to remove impurities. By knowing the molar mass, water treatment professionals can calculate the exact amount of sodium aluminate required to achieve the desired level of purification.
Another important application is in the production of Molecular Sieve Specific Sodium Aluminate. Molecular sieves are used for gas separation and purification. The molar mass of sodium aluminate affects the synthesis process of molecular sieves, as it determines the stoichiometry of the reaction. Precise control of the molar mass ensures the formation of molecular sieves with the correct pore size and structure, which are critical for their performance.


Quality Control and Molar Mass
As a supplier of 1302 - 42 - 7 Sodium Aluminate, quality control is of utmost importance. The molar mass of the product is one of the key parameters that we monitor during the manufacturing process. We use advanced analytical techniques such as mass spectrometry to accurately determine the molar mass of our sodium aluminate products. This ensures that our customers receive a consistent and high - quality product that meets their specific requirements.
Factors Affecting Molar Mass
It is important to note that the molar mass of sodium aluminate can be affected by factors such as impurities and the presence of different hydrates. Some forms of sodium aluminate may exist as hydrates, such as NaAlO₂·xH₂O, where x represents the number of water molecules associated with each formula unit. The presence of water molecules will increase the molar mass of the compound.
Impurities in the sodium aluminate sample can also affect the measured molar mass. These impurities may be introduced during the manufacturing process or due to environmental factors. To ensure the accuracy of the molar mass determination, we take steps to minimize impurities and conduct thorough quality checks.
Applications in Different Industries
Sodium aluminate has a wide range of applications in various industries. In the paper industry, as mentioned earlier, it is used in the production of decorative base paper. It helps improve the paper's strength, brightness, and printability. In the water treatment industry, it is used to remove suspended solids, heavy metals, and other contaminants from water.
In the construction industry, sodium aluminate is used as a cement accelerator. It speeds up the setting time of cement, which is beneficial in cold weather conditions or when rapid construction is required. In the chemical industry, it is used as a raw material for the production of other aluminum compounds.
Conclusion
The molar mass of sodium aluminate (NaAlO₂) is 81.97 g/mol, which is calculated by adding the atomic masses of sodium, aluminum, and oxygen in its chemical formula. This value is significant in many industrial applications, including water treatment, paper production, and the synthesis of molecular sieves. As a supplier of 1302 - 42 - 7 Sodium Aluminate, we understand the importance of accurate molar mass determination for quality control and customer satisfaction.
If you are interested in purchasing high - quality 1302 - 42 - 7 Sodium Aluminate for your industrial needs, we invite you to contact us for a detailed discussion. Our team of experts can provide you with more information about our products and help you find the best solution for your specific requirements.
References
- Chang, R. (2010). Chemistry (10th ed.). McGraw - Hill.
- Petrucci, R. H., Herring, F. G., Madura, J. D., & Bissonnette, C. (2011). General Chemistry: Principles and Modern Applications (10th ed.). Pearson.
