How to properly use acidic cleaning agents to avoid danger?

To avoid danger when using acidic cleaning agents, a series of correct measures must be taken before, during, and after use, as follows:

Before Use

Understand product information: Carefully read the product instructions of the acidic cleaning agent, understand its composition, concentration, scope of application, safety precautions, etc., and clarify whether the cleaning agent is suitable for the object to be cleaned to avoid damage or danger due to improper selection.

Prepare protective equipment: Prepare complete personal protective equipment in advance, such as acid-resistant gloves, goggles, aprons, or protective clothing. If used in a poorly ventilated environment, a gas mask should also be prepared to prevent acid mist from harming the respiratory tract.

Prepare the environment: Ensure that the use environment is well-ventilated, open doors and windows or start ventilation equipment, such as exhaust fans. Properly place other items around the items to be cleaned to avoid acidic cleaning agents splashing onto other items and causing damage. For flammable, explosive, or other hazardous materials that may react with acidic cleaning agents, move them to a safe distance in advance.

During Use

Correct dilution: Dilute according to the product instructions. Generally, slowly pour the acidic cleaning agent into the water and stir constantly. Do not pour water into the acidic cleaning agent to avoid a violent reaction causing the acid to splash. For example, when diluting concentrated sulfuric acid, the concentrated sulfuric acid must be slowly poured into the water along the wall of the container, and constantly stirred with a glass rod.

Control the dosage and acting time: According to the degree and area of soiling of the cleaning object, reasonably control the amount of acidic cleaning agent used, and do not overuse it. At the same time, strictly control the acting time of the cleaning agent on the surface of the object to avoid corrosion of the cleaning object due to prolonged contact. After reaching the specified acting time, rinse thoroughly with water.

Avoid mixing: Do not mix acidic cleaning agents with other types of cleaning agents or chemicals, especially alkaline cleaning agents, chlorine disinfectants, etc., to avoid chemical reactions producing toxic gases or causing other dangers. For example, mixing hydrochloric acid and bleaching powder will produce toxic chlorine gas.

Pay attention to operational safety: Be cautious during use and avoid contact of acid with skin, eyes, or mouth. If accidental contact occurs, rinse immediately with plenty of water and seek medical attention promptly. When cleaning large equipment or performing large-area cleaning, it is best to have someone else present to obtain timely assistance in case of accidents.

After Use

Thorough cleaning: After cleaning with an acidic cleaning agent, rinse the cleaning object thoroughly with plenty of water to ensure that there is no residual acidic cleaning agent on the surface. Pay special attention to rinsing crevices, holes, and other parts where acid may remain to prevent residual acid from causing subsequent corrosion.

Proper disposal of waste liquid: Used acidic cleaning waste liquid cannot be discharged arbitrarily and should be properly disposed of according to the requirements of the local environmental protection department. If it is a small amount of waste liquid, it can be neutralized with an alkaline substance (such as baking soda, lime, etc.) and then poured into the sewer; if it is a large amount of waste liquid, contact a professional environmental protection agency for disposal.

Clean and store tools: Wash and dry used cleaning tools such as rags and brushes with water. Store the acidic cleaning agent in a cool, dry, and well-ventilated place, avoiding direct sunlight and high temperatures. At the same time, keep it out of the reach of children and pets, and label it clearly to prevent accidental use.