Dry ice and ice are two very different substances, and their physical and chemical properties are different. For customers who make and use dry ice, the huge difference between dry ice and ice is especially important. As the year’s dry ice machine manufacturer, we Shuliy machinery can not only provide you the best dry ice pellet machine and dry ice block machine but also can provide you with detailed dry ice basics.
The main difference between dry ice and ice
干冰的温度一般为-78℃，冰的温度为0℃。干冰是固态二氧化碳CO2，遇热会升华成二氧化碳气体。这个过程不经过固态，直接变成气态。冰是固态的水，受热时会融化成液态水。即使在100℃的沸水中煮沸，也不会直接汽化，必须是液体。当温度达到沸点时，液态水才会蒸发成水蒸气。
将干冰和水放入两个装满水的杯子中。干冰出来时有浓浓的白烟，普通水冰没有明显变化。如果用手摸的话，只有水冰放在手上1-2分钟才会感觉冷，而干冰则保持不到5秒，你肯定会因为太冷而扔掉它它会直接刺痛你的手！通过这个实验，我们可以简单直观的区分干冰和水冰。
How to properly preserve dry ice pellets and dry ice blocks?
干冰是固体二氧化碳，挥发后没有水，但由于干冰的温度很低，约为-78度。因此，在购买干冰粒或干冰块时，应注意。如果没有特殊的保温设备和适当的储存方法，干冰会不断挥发并很快被消耗掉。
Before purchasing dry ice products, you need to prepare an incubator. The glass liner insulation equipment is not recommended. The glass liner may not be able to withstand the severe temperature changes caused by dry ice and will break. You can prepare a foam plastic box, which will have a good thermal insulation effect after adding enough cotton inside. It is also possible to use a special dry ice incubator, but it is important to note that after putting dry ice in it, you cannot tightly seal the lid of the box, otherwise the interior will explode because the sublimation pressure of dry ice continues to rise.
干冰的使用方法与普通冰块大致相同，但其温度却比普通冰块低得多。用手触摸时必须戴非纤维手套。由于干冰具有挥发性，剩余的干冰必须用保温材料包裹起来，存放在冰箱中。这会减慢干冰的蒸发速度。