How to Judge Whether Magnesium Hydroxide Expires
In industry, magnesium hydroxide is widely used, the quality of magnesium oxide industry some reaction quality, but magnesium oxide beyond the shelf life will not lose activity?
In industry,Magnesium hydroxideWidely used, the quality of magnesium oxide industry some reaction quality, but magnesium oxide beyond the shelf life will not lose activity? So how do we check whether magnesium hydroxide expired?
The first is a preliminary examination. Under normal circumstances, magnesium oxide should be white powder. If the magnesium oxide deteriorates, the color will change. In addition, the whiteness of magnesium oxide is reduced, which also indicates that the activity of magnesium oxide has changed. In addition, if the shape of magnesium oxide can be observed obvious changes (agglomeration, etc.), the properties are not uniform, it is generally not recommended to use.
Then look at the storage conditions of magnesium oxide: magnesium oxide is a very easy to absorb water and damp material, if in the storage or transportation process did not do a good job of moisture, it is likely to cause magnesium oxide denaturation, loss of use value. In daily work, the following ways can be used to protect magnesium oxide from water deterioration. 1. Cover the plastic film and spread the plastic film on the ground. If you are not willing to change the bag for packaging, you can use this method to prevent moisture. 2. Place lime blocks after palletizing to prevent moisture absorption of magnesium oxide and reduce activity. 3. Because calcium oxide has stronger moisture absorption, calcium oxide is placed in the warehouse to reduce the humidity of the warehouse, which is very effective;
Analysis of the activity of magnesium hydroxide
The last is to understand how long the shelf life of magnesium oxide is: how long is the storage time of magnesium oxide? More than the shelf life of one or two months, and more than the shelf life of one or two years must be very different. The second is where magnesium oxide is used? Is it important to use magnesium oxide products? If there is a failure, will it cause a large loss? Generally speaking, if there is no obvious change in the appearance of magnesium oxide, we suggest that it is best to re-test the activity of magnesium oxide. Magnesium oxide detection can quantitatively and accurately determine the activity of magnesium oxide through professional detection equipment. Ensure that it will not be placed for too long, resulting in reduced activity and misuse, thereby affecting the quality of the produced product.
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Everyone knows that there are two common flame retardants. Today we are going to talk about only one of them. Aluminum hydroxide flame retardant is an environmentally friendly halogen-free flame retardant, which can be widely used in fabrics, wood, plastics, and rubber., Polyurethane and other industries have ideal flame retardant effect. In the process of industrial application, it is found that flame retardant failure occurs when aluminum hydroxide flame retardant is added. The following are the reasons for the failure of aluminum hydroxide flame retardant, how to prevent it, how to deal with the operation, and restore the original function.
As a flame retardant, magnesium hydroxide also need to improve what aspects?
When it comes to flame retardants, everyone is familiar with them. Although we usually have less contact with them, we can know what they are used for from the name. Have to talk about magnesium hydroxide, we all know that its main presentation state is a granular, at present, the market sales of magnesium hydroxide particle size is larger, part of the commodity particle size up to tens of microns, immediately used as a flame retardant, poor dispersion, the physical properties of raw materials greater harm. In industrial production, physical grinding methods are generally used to reduce the particle size to 1 micron. The surface of magnesium hydroxide has high polarity and is easy to agglomerate. As the compatibility of refractory materials and polymer substrates, it not only reduces its flame retardant grade, but also causes more serious harm to the physical properties of raw materials.
Hefei Zhongke Flame Retardant New Material Co., Ltd
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