Potassium hydrogen persulfate (KHSO ₅) is a strong oxidant with functions such as disinfection, oxidation, and bottom improvement. It is widely used in aquaculture, sewage treatment, medical and health care, agriculture, and other fields. The following are common problems and solutions during its use:

1、 Poor disinfection/oxidation effect

Common reasons

Insufficient concentration: Improper dilution ratio, or excessive organic matter (such as feces, residual bait, oil pollution) in the water/environment, consuming oxidants.

Short action time: insufficient contact or insufficient reaction time.

Influence of pH value: The oxidation ability decreases in alkaline environment (potassium hydrogen persulfate is more effective under acidic conditions).

Low temperature: Low temperature will reduce the rate of chemical reactions.

solution

Accurate calculation of dosage: Adjust the concentration according to water quality, area, or disinfection target (refer to the product manual), and increase the dosage appropriately when there is a high amount of organic matter.

Pre cleaning the environment: Before disinfection, remove organic matter such as feces and residual bait, or choose "potassium hydrogen persulfate composite salt" (containing enhancing ingredients) to enhance anti-interference ability.

Adjust pH value: If used in an alkaline environment, acidic substances (such as acetic acid) can be used to adjust the pH to neutral or weakly acidic.

Choose appropriate temperature: avoid using at low temperatures (such as below 10 ℃), or extend the action time appropriately.

2、 Safety risks (corrosion, irritation, accidental contact)

Frequently Asked Questions

Skin/mucosal irritation: Contact with high concentration solution on the skin or eyes can cause burns or redness.

Accidental ingestion or inhalation: Powder or solution accidentally enters the mouth and nose, causing gastrointestinal burns or respiratory irritation.

Flammable and explosive risks: Mixing with organic substances (such as alcohol and oil) may cause combustion, or react violently with metal powder.

solution

Wear protective equipment: Wear rubber gloves, goggles, and a mask during operation to avoid direct contact.

Standardized operating procedures:

Add water before diluting to avoid splashing caused by reverse order.

Keep away from open flames and avoid extensive use in enclosed spaces.

Emergency Management:

Skin contact: Immediately rinse with plenty of water for 15 minutes and seek medical attention if necessary.

Eye contact: Rinse with flowing water or saline solution and seek medical attention.

Accidental ingestion: Rinse mouth immediately, do not induce vomiting, drink milk or egg white, seek medical attention (do not neutralize with alkaline substances).

Inhalation: Move to a place with fresh air, keep breathing unobstructed, and seek medical attention.

3、 Compatibility taboos lead to failure or danger

Frequently Asked Questions

Mixing with alkaline substances such as quicklime, sodium hydroxide, etc. will neutralize the acidity of potassium hydrogen persulfate and reduce its effectiveness.

Mixing with reducing substances such as sulfite, thiosulfate, vitamin C, etc. can cause redox reactions, leading to failure or release of toxic gases (such as SO ₂).

Contact with metals: corrodes metals such as iron and aluminum, or triggers violent reactions (may explode if exposed to magnesium powder).

solution

Separate use: Use at least 24 hours apart from alkaline or reducing drugs (such as changing the bottom with quicklime first and disinfecting with potassium persulfate the next day).

Avoid metal containers: Dissolve and store in plastic, ceramic, or glass containers, and metal utensils are prohibited.

Read the instruction manual carefully: Confirm whether the product is a "composite salt" (which may contain other ingredients) and avoid mixing with prohibited substances.

summary suggestions

Ready to use: The solution is prone to failure if left for a long time. It is recommended to use it up within 24 hours after dispensing.

Follow the principle of "trial before use": conduct small-scale testing before using new scenarios or products.

Consulting professionals: For special scenarios such as aquaculture and medical disinfection, it is recommended to develop plans based on specific needs.

Reasonable use of potassium persulfate can not only leverage its advantages in efficient oxidation disinfection, but also minimize risks, extend product shelf life, and improve cost-effectiveness.