Sodium persulfate is a chemical reagent with oxidizing and bleaching properties. When using sodium persulfate, the following points should be noted:

1. Avoid contact with skin and eyes: Sodium persulfate is irritating and may cause burns or irritation if in contact with skin or eyes. During the operation, protective gloves and goggles should be worn to avoid direct contact.

2. Avoid mixing with other substances: Sodium persulfate has strong oxidizing properties and may react violently with organic matter, reducing agents, etc., even causing fires or explosions. During use, it should be stored separately from other chemicals to avoid mixing.

3. Pay attention to storage conditions: Sodium persulfate should be stored in a dry, cool, ventilated place, away from sources of fire and combustibles. Avoid direct sunlight and high temperature environments.

4. Use with caution: When using sodium persulfate, follow the correct operating method to avoid generating dust and splashes. To dilute sodium persulfate, it should be added to water first, rather than pouring water into sodium persulfate.

5. Disposal of waste: Used sodium persulfate should be properly disposed of. It can be diluted and discharged into the sewer, but attention should be paid to the degree of dilution to avoid polluting the environment.

In short, when using sodium persulfate, safety should be taken into account, direct contact and mixing should be avoided, and waste should be stored and disposed of correctly to ensure the safety and environmental friendliness of the operation.