Lesson 22 Uses of common salt

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Lesson 22 Uses of common salt

• How is common salt used in industry ?
• What are the uses of the products from
  electrolysis of brine ?

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How is common salt used in industry ?

• Common salt (sodium chloride) has limited use in
  industry.
• However, it can be used to make many different
  industrial products by electrolysis of brine
  (concentrated sodium chloride solution)
• This industry is called chlor-alkali industry.

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How is common salt used in industry ?
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What are the uses of the products from
electrolysis of brine ?
Brine
electrolysis
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What are the uses of the products from
electrolysis of brine ?

• Hydrogen margarine, hydrochloric acid, ammonia,
  rocket fuel
• Chlorine hydrochloric acid, sterilizing water,
  PVC plastic, solvent, bleaches
• Sodium hydroxide sewage treatment, paper
  making, aluminium extraction, soap

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Classwork

• pg83 Q12,13