The Method of Cleaning Graphite Powder

Nowadays, as the world's industry is developing by leaps and bounds, the application of graphite powder in the industry is becoming more and more extensive, and it has become one of the important industrial mineral raw materials for various enterprises. And if our clothes are accidentally stuck with graphite powder, it is particularly difficult to clean, so how to clean graphite powder?

Ⅰ. What are the methods of cleaning graphite powder?

Properties of graphite powder: The specific gravity of graphite is 1.9 to 2.3. Under the condition of isolating oxygen, the melting point is above 3000 °C, and the boiling point is 4250 °C. The strength of graphite will increase with the increase in temperature. When the temperature reaches 2000℃, the strength of graphite will double. Flake graphite powder also has the following characteristics: electrical conductivity, thermal conductivity, lubricity, chemical stability, plasticity, and thermal shock resistance. Graphite is soft, dark grey, greasy, and can stain paper clothes.

At room temperature, the performance of graphite is stable, insoluble in water, organic solvents, dilute alkalis and dilute acids, and is not eroded by any strong acids, strong alkalis and organic solvents. At high temperatures, flake graphite powder can react with the metal to form metal carbide; under heating, graphite can be easily oxidized by acid; react with oxygen at different high temperatures to generate carbon monoxide or carbon dioxide; among halogens, only fluorine can react with Elemental carbon reacts directly.

Graphite powder is mainly oily. In order to better wash off those oily substances, we can wash clothes with detergent or toothpaste. Because toothpaste or detergent has the effect of removing greasy and stains after the clothes are stuck with the flake graphite powder, you can squeeze a little toothpaste and rub it back and forth a few times, and then wash it with water.

Ⅱ. What is the resistivity of graphite powder related to?

Bulk graphite powder for sale has the irreplaceable role of other materials, and it has the advantages of wear resistance, thermal shock resistance and high-temperature resistance. What are the reasons that affect the resistivity of graphite powder?

1. True porosity and bulk density, positive value: above 900K; negative value: below 700 to 900K. As one of the professional graphite products suppliers in China, WH Graphite can easily calculate the resistivity of graphite powder at a certain temperature according to the temperature coefficient of resistance.

2. Raw materials. The smaller the resistivity of the raw material after calcination, the smaller the resistivity of the finished product.

3. Temperature: negative value: when the temperature rises, the resistance of the graphite powder will decrease; positive value: when the temperature rises, the resistance of the graphite powder conductor will increase.