Important Physical and Chemical Properties of Potassium Chloride and Calcium Nitrate
Physical & Chemical Properties of Potassium Chloride and Calcium Nitrate
Potassium chloride and calcium nitrate are both ionic compounds. Potassium chloride molecules are made up of one potassium cation and one chloride anion. The chemical formula of potassium chloride can, therefore, be denoted by KCl. Calcium nitrate molecules, on the other hand, are made up of one calcium cation and two nitrate anions.
The chemical formula of calcium nitrate can, therefore, be written as Ca (NO3)2. Some important physical and chemical properties of potassium chloride and calcium nitrate are provided in this article.
Important Physical and Chemical Properties of Potassium Chloride :
- The molar mass of potassium chloride is equal to 74.55 grams per mole.
- Under standard conditions for temperature and pressure (often abbreviated to STP), potassium chloride exists as a white crystalline solid. It is important to note that potassium chloride does not have any characteristic odour.
- The melting point of this ionic solid is roughly equal to 770 degrees Celsius. On the Kelvin scale, this value can be represented as 1040 K (roughly).
- The boiling point of potassium chloride is approximately equal to 1420 degrees Celsius. This value can be converted to the Kelvin scale to yield a temperature of 1690 Kelvin.
- Potassium chloride is fairly soluble in water. At a temperature of 20 degrees Celsius, the solubility of potassium chloride in water is roughly equal to 339.7 grams per litre. As the temperature is increased, the solubility of this compound in water also increases. For example, the solubility of potassium chloride in water at a temperature of 100 degrees Celsius is equal to 540.2 grams per litre.
- Potassium chloride is also soluble in glycerol and alkali/basic substances. It is insoluble in ethers. It can also be noted that this compound is somewhat soluble in alcohols such as methanol and ethanol.
- The crystals of the potassium chloride are made from the face-centered and cubic unit cells.
- The density of potassium chloride in the solids and crystalline form is 1.984 grams per cubic centimetre.
- This is achieved after performing a complete process of heating the KCI with the metallic sodium at a temperature of 850 degrees.
Important Physical and Chemical Properties of Calcium Nitrate :
- The molar mass of calcium nitrate is equal to 164.088 grams per mole in its anhydrous state. In its tetrahydrate form, the molar mass of calcium nitrate is equal to 236.15 grams per mole.
- Under standard conditions for temperature and pressure (often abbreviated to STP), calcium nitrate exists as a colourless solid. It is important to note that calcium nitrate is hygroscopic in nature.
- The melting point of this ionic compound is approximately equal to 561 degrees Celsius in its anhydrous state. The tetrahydrate form of this compound begins to lose water when heated to temperatures above 42.7 degrees Celsius.
- The boiling point of this ionic compound is difficult to gauge since it begins undergoing a decomposition reaction when heated to 132 degrees Celsius in its anhydrous state.
- Calcium nitrate is highly soluble in water. In its anhydrous state, the solubility of calcium nitrate in water at a temperature of 20 degrees Celsius is roughly equal to 1212 grams per litre. Furthermore, the solubility of calcium nitrate in water at a temperature of 40 degrees Celsius is roughly equal to 2710 grams per litre.
- The colour and appearance of calcium nitrate is colourless or pure white. It can also be light grey granular powder. It is in the form of hygroscopic crystals.
- The density of calcium nitrate is 2.5 g cm raised to power -3 (3,5).
- The state of matter of calcium nitrate is solid at the room temperature.
- The crystal structure is cubic and monoclinic.
- The pH level of calcium nitrate is 5-7 (7).
- The calcium nitrate can be used as the agricultural fertilizer because of the properties which it has.
- The magnetic susceptibility of calcium nitrate is -45.9 into 10-6 cm cube/mol.