White carbon black is a kind of special carbon black product widely used in rubber, plastic, paint, ink, cosmetics and other industrial and daily necessities. In order to ensure the quality of white carbon black, it is necessary to carry out quality inspection. The following introduces several common white carbon black product quality testing methods.

1. Ash determination method: Ash refers to the content of non-combustible residues in the sample. White carbon black often contains impurities or impurities, through the determination of ash content, you can judge the content of non-combustible residues in white carbon black samples. The ash determination method requires the sample to be burned at high temperatures to determine the residue mass and thus calculate the ash content.

2. Specific surface area measurement method: The specific surface area of white carbon black is an important index of its quality. The commonly used measurement method is BET specific surface area method, which determines the adsorption amount of carbon black sample by adsorbing gas (such as nitrogen), so as to calculate the specific surface area.

3. Particle size analysis: The particle size of white carbon black is also an important indicator of its quality. The commonly used measurement method is laser particle size analysis, which calculates the particle size and particle size distribution by measuring the scattered light of the particles in the sample.

4. Thermogravimetric analysis: Thermogravimetric analysis refers to the phenomenon that the sample loses weight at high temperature, and the impurity or impurities in white carbon black will decompose or volatilization at high temperature, resulting in the sample losing weight. Thermogravimetric analysis (TGA) can detect the content of impurity or impurity in the white carbon black sample by measuring the weight loss of the sample under high temperature conditions.

The above method is a common method for the quality detection of white carbon black products, but different detection methods are suitable for different quality indicators. In the quality inspection, it is necessary to choose the appropriate detection method to ensure accurate and reliable detection results.