Sodium hydroxide (NaOH)
Sodium hydroxide:
Sodium hydroxide, also known as caustic soda or caustic acid (soda), with the chemical formula NaOH, is a white solid with a melting point of 318 °C and a density of 2.13 g/cm3. This substance quickly absorbs moisture from the air and must be covered during transportation. The largest amount of sodium hydroxide produced is obtained through the electrolysis process of sodium chloride solutions in one of the types of electrolytic containers.
Applications
This material is used in the oil and petrochemical industries, steel and aluminum industries, detergent and soap industries, textile industries, and chemical industries, including in the production of chemicals, rayon, pulp and paper, in the production of paints, aluminum, fabrics, soaps, and detergents.
Maintenance Risk
- This compound is corrosive in contact with the skin and care must be taken when using it to avoid its burning effects. It is also very toxic and dangerous if swallowed.
- If not stored at a certain temperature, it will turn into a crystalline solid or melted flakes.
- Liquid soda is slippery and easily leaks from cracks.
Maintenance method in plastonic tanks
- By using plastic tanks, the risks of storing this dangerous chemical liquid can be reduced. The key to storage is to store it in safe and strong tanks.
- Since this substance is highly corrosive, the use of a secondary tank is recommended.
- Sodium hydroxide can be stored in polyethylene tanks at a concentration of 30 to 50 percent.
- The storage temperature should not exceed 37 degrees Celsius and should not be less than 10 degrees Celsius.
- Pipes and fittings should have a resistance appropriate to your intended use. The material of the fittings used in tanks to store this substance can be: polyethylene, polyvinyl chloride or Teflon. Gaskets made of ethylene propylene diene monomer or Viton are also recommended for sealing.