Description
Caustic soda, also known as sodium hydroxide, is a highly caustic and strong alkaline substance.
- Chemical Formula: NaOH
- CAS Number: 1310-73-2
Properties
- Appearance: Colorless liquid; can be viscous depending on concentration.
- pH: Strongly alkaline; typically, a pH of 13-14 in concentrated solutions.
- Solubility: Highly soluble in water, releasing heat upon dissolution.
- Density: Varies with concentration, generally around 1.5 g/cm³ for concentrated solutions.
Applications
- Chemical Manufacturing: Used in the production of various chemicals, including soap, detergents, and solvents.
- Food Industry: Employed in food processing, particularly for peeling fruits and vegetables, as well as in the production of certain food additives.
- Water Treatment: Used to adjust pH levels in water treatment processes.
- Cleaning Agents: It is commonly found in drain cleaners and industrial cleaning agents due to its ability to dissolve grease and organic matter.
- Pulp and Paper: Utilize in the pulping process and produce sodium sulfide in the kraft process.
- Textile Industry: Used in the processing of textiles, such as bleaching and dyeing.
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Industry Solvents 
