Talcum powder is a very important chemical material. It is not only a high-quality filler in the cosmetics industry but also an additive in the pharmaceutical and food industries. The requirement for moisture is extremely strict. Only when it is within an appropriate range can it be used for production and processing. Otherwise, the quality of its derivative products will be seriously affected. So we need to detect the moisture of the product. But how should we conduct this detection?

Now, let the editor take you to understand:

Specific surface area: It can be determined by a laser granularity analyzer.

Average particle size: Use a laser particle size analyzer to measure the intermediate value of the cumulative weight percentage of the particle size distribution.

Residue at 325 mesh: Filter a 1000g/m3 sample by wet method in a 325-mesh standard sieve and calculate the residual ratio.

Specific gravity: Place a 5g sample in a 20cc graduated measuring cylinder for measurement. The measured value is obtained after naturally dropping it 100 times from a height of 5 cm.

Whiteness: Measure with an automatic whiteness meter.

Oil absorption: Add linseed oil for titration until it becomes lumpy to determine the measured value.

The above is the relevant knowledge content that the editor shares with you on how talcum powder is determined. When purchasing, verify the technical capabilities and after-sales service capabilities of the manufacturer.