[Measurement Example] Quantifying Lot Differences

Calculated from BET specific surface area and relaxation time! Introducing the differences in wettability of powders with different lots.

We would like to introduce a case study conducted by Majerika Japan Co., Ltd., where six types of powders with different lots were dispersed in distilled water, and relaxation time measurements were performed. The six types of powders were dispersed in water at the same concentration (10 wt%) and subjected to ultrasonic dispersion for 10 minutes, followed by relaxation time measurements. When the relationship between the BET specific surface area and the calculated specific surface area from the relaxation time was graphed, it was represented by two straight lines rather than a single correlation line. This suggests the presence of two types of powders with different chemical properties. 【Case Summary】 ■ Experiment - Six types of powders were dispersed in water at the same concentration (10 wt%). - Ultrasonic dispersion was performed for 10 minutes, followed by relaxation time measurements. ■ Results - The presence of two types of powders with different chemical properties was suggested. *For more details, please refer to the PDF document or feel free to contact us.

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