Liquid caustic soda (Sodium hydroxide NaOH) is a solution of Sodium hydroxide (NaOH). Depending on the needs, NaOH circulating in the market has many products with many different concentrations. This is a strong alkaline substance and this solution is widely used in many industrial and household applications.
Properties of caustic soda
- It is a white liquid.
- Neutralizes with acids to form salts.
- NaOH falling on cotton, fabric, paper… will rot. Leaving it open to air will absorb CO2, forming Na2CO3 . NaOH is a strong base.
- NaOH solution is greasy, causes fabric to break, and is corrosive to hand skin.
- Reacts with acids and acid oxides to form salt and water.
- Reacts with organic acids to form its salts and hydrolyze esters.
- Reactions with strong metals form new bases and new metals.
- Reaction with salt forms new bases and new salts.
Packaging, storage:
Sodium hydroxide easily absorbs CO2 in the air so it is often stored in a tightly sealed container.
Store in a sealed container, tank, or plastic can.
NaOH soda is often widely used in many different industries. We can see that NaOH is used as a chemical to increase pH in wastewater treatment, used in pH neutralization reactions, created hydroxides to remove heavy metals, and increase pH in cyanide treatment reactions. , Nitrogen Stripping Tower…
The commonly used NAOH applications are:
- Used in paper, soap, and textile industries
- Added to water, hot water, and then used to clean technological equipment and tanks
- It can dissolve grease, oil, fat, and protein-based deposits
- A common ingredient in oven cleaners
- Wastewater from centralized industrial treatment station
- Wastewater from electronic components manufacturing industries, etc.
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