Generally, calcium chloride produced by calcium chloride manufacturers often contains some amount of hydrated crystals. However, under certain special circumstances, anhydrous calcium chloride is required. How can one distinguish between hydrated and anhydrous calcium chloride? The calcium chloride manufacturer will introduce this to you below.
Physical observation alone cannot determine if calcium chloride contains water. Typically, a simple method is to use the weighing technique, as the weight of water differs from that of calcium chloride. By weighing the saturated calcium chloride solution, if the weights are the same, it indicates that the calcium chloride is anhydrous.
Calcium chloride manufacturers can also heat a small amount of calcium chloride in a test tube. If water droplets appear on the test tube wall, it indicates that the calcium chloride contains water crystals. The absence of water droplets confirms it is anhydrous calcium chloride.