1. Risks when working with chemicals

Industrial chemicals such as HCl, NaOH, CAP… are often highly corrosive and oxidizing, causing many risks:

• Chemical burns: Direct contact causes deep burns and necrosis.
• Respiratory irritation: Inhalation of concentrated acid/alkali vapors can cause lung damage.
• Environmental pollution: Spills and leaks affect water, soil and air resources.

2. Chemical safety measures

2.1. Personal protective equipment (PPE)

• Chemical resistant gloves, goggles, respirator, anti-corrosion clothing.
• Use non-slip, waterproof shoes when working in wet areas.

2.2. Management & storage matter

• Label clearly, with full MSDS (Material Safety Data Sheet) information.
• Store chemicals in HDPE plastic drums, cool warehouse, away from sunlight and heat sources.
• Separate acid – alkali – organic solvent to prevent dangerous reactions.
  

  

2.3. Technical controls

• With ventilation system, leak sensor, safe dosing pump.
• Implement standard operating procedures (SOP); provide regular training to employees.

3. First aid procedures for chemical exposure

• Skin burns: Rinse under clean running water for at least 15–20 minutes, remove contaminated clothing.
• Acid burns: Can be rinsed further with dilute NaHCO₃ solution.
• Alkali burns: Wash with diluted vinegar or lemon solution.
• Eye contact: Rinse immediately with clean water for ≥15 minutes and seek medical attention.
• Inhalation of toxic gases: Take the victim to a fresh air place, give oxygen if needed and go to the emergency room:contentReference[oaicite:2]{index=2}.

4. Chemical safety regulations & standards

In Vietnam, businesses need to comply Law on Chemicals 2007, Decree 113 / 2017 / ND-CP and the guiding circulars on the management of hazardous chemicals. At the same time, international standards such as ISO, ANSI, OSHA also commonly applied in chemical system design & operation:contentReference[oaicite:3]{index=3}.

• Have safety data sheets (SDS) at the workplace.
• Periodic chemical safety training for workers.
• Develop a spill and explosion response plan.

5. Chemical safety in water treatment

In water treatment, chemicals such as HCl, NaOH, CAP, NaOCl (Javen) are commonly used. To ensure safety:

• Dilute chemicals according to instructions, do not pour water into acid, but pour acid into water.
• Combine PAC to reduce chlorine dosage, limit the risk of toxic gas generation.
• Control of residual chlorine in domestic water: 0,2–0,5 mg/L (according to TCVN 01:2009/BYT).

7. Contact Loc Thien Company