Its other name is sodium acid sulfite

CHARECTERISTICS

  • It is present in the form of white shinning crystals

TASTE

  • It has sulfur like taste and smell

DENSITY

  • 1.48

HAZARDS

  • It is dangerous to add it in meat
  • Harmful for skin and nail
  • Non flammable

SOLUBILITY

  • Soluble in water
  • Insoluble in alcohol

PREPARATION

It is obtained by the reaction of sodium carbonate and sulfur dioxide

GRADES

  • U-S-P, regent, commercial dry.

USES

  • Used in preparation of sodium salts and cream of tartar.
  • Used in textile industry
  • Preservation of food
  • Acts as an antiseptic, reducing agent.
  • Also used for copper and brass plating

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