What is Na2W2O7? Important knowledge about Na2W2O7.

1.1.1 The common name of Na₂W₂O₇ is Sodium Tungstate Oxide, also known as Sodium Tungstate Dihydrate in English.

1.2, 1.3 The molecule Na₂W₂O₇ consists of 2 sodium atoms (Na), 2 tungsten atoms (W), and 7 oxygen atoms (O). The molecular mass of Na₂W₂O₇ in Daltons is approximately 489.92 Daltons.

1.4 In Na₂W₂O₇, Na+ and W₂O₇₂- are the two main ions.

2.1 Physically, Na₂W₂O₇ typically exists as a white, odorless powder. This substance has a neutral pH when dissolved in water.

2.2 Chemically, Na₂W₂O₇ has the properties of a salt, and it can react with acids to form new compounds.

3. Na₂W₂O₇ is commonly used in chemical reactions such as determining the concentration of phosphate in solutions, transforming organic substances, and creating other tungsten compounds.

4. The preparation of Na₂W₂O₇ is usually performed through the reaction between Tungsten trioxide (WO₃) and Sodium hydroxide (NaOH) at high temperatures. In industry, Na₂W₂O₇ is produced from tungsten ore through a series of refining and purification processes.