![]() Of the two, the □-K 2 SO 4 is the common form and it converts into the □-K 2 SO 4 form above the temperature of 583℃. It exists in two crystalline forms - □-K 2 SO 4 and □-K 2 SO 4. The crystal structure of the potassium sulphate mineral is orthorhombic. It is a relatively rare mineral and hence more potassium sulphate can be found in the cocrystallization of potassium sulphate with magnesium sulphate, calcium sulphate or sodium sulphate. Potassium sulphate is naturally available in the mineral form of arcanite. The structural formula of potassium sulphate shows the two potassium ions around the sulphate ions as depicted by the molecular formula of potassium sulphate. Structural Characterisation of Potassium Sulphate The crystals of potassium sulphate are transparent, very hard and are bitter and salty in taste. It is a non-flammable inorganic compound. The ionic compound is highly soluble in water, sparingly soluble in glycerol solution and insoluble in solutions made up of acetone, alcohol, and cesium sulphide. The boiling point and the melting point of potassium sulphate are high. The density of the compound is 2.7 g/cm 3. Some of the other physical properties that cannot be obtained from potassium sulfate formula are noted below: The molar mass of potassium sulphate as determined by the potassium sulphate formula is 174.26 /mol. It serves as a good source of potassium and sulfur for the plants as is depicted by the formula for potassium sulphate.įrom the potassium sulphate formula or the potassium sulfate formula (whichever you are comfortable with), it is easy to calculate one of the physical properties of the compound - the molar mass. Potassium sulphate is a white and odourless solid and is more commonly known for its useful properties as a fertilizer. Thus, K 2 SO 4 is the answer to be given when asked what is the chemical formula of potassium sulphate or what is the potassium sulphate chemical formula. Hence, the chemical formula of potassium sulphate is given as K 2 SO 4. Hence, from these facts, you can easily determine that the neutral potassium sulfate formula will have two cations of potassium and one anion of sulphate. On the other hand, Potassium can lose only one electron for attaining stable valence electronic configuration. By definition, a sulfate or sulphate ion is a polyatomic anion with an overall electrical charge of -2. It is an ionic compound which when dissolved in water dissociates into two ions - potassium cation and sulphate anion. Potassium sulphate (UK) or potassium sulfate (US) is an inorganic chemical compound which is also known as sulfate of potash, arcanite or was previously also known as potash of sulfur.
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