Write the name, method of production, properties and uses of following: ) NaOH) NaHCO
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NaOH - sodium hydroxide or caustic soda
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NaOH
- Caustic soda is an alkali salt which is also called Lye. It is the common name of sodium hydroxide (NaOH)
Sodium hydroxide can be prepared by various methods like:
- Castner-Kellner process
- Loewig’s process
Properties of Caustic Soda
- It is a white solid which has a melting point of 591K
- It is a stable compound.
- NaOH is bitter and has a soapy feel to it.
- It is highly soluble in water and moderately soluble in alcohol.
- Sodium hydroxide is strongly alkaline in nature.
Caustic Soda Uses
- It is used as a cleansing agent and in the manufacturing of washing soda.
- Some times, sodium hydroxide is also used as a reagent in the laboratories.
- It is used in the preparation of soda lime.
- It is used in the extraction of aluminium by purifying bauxite.
NaHCO
- Baking Soda is also defined as Sodium Bicarbonate.Solvay process is used for the production of sodium bicarbonate and sodium carbonate industrially.
Properties of Sodium Bicarbonate
- It is non-flammable.
- Powder dust is not as explosive.
- It has a melting point of 500
- NaHCO3 is a white crystalline solid which is odourless.
- It is basic in nature.
Uses of Baking Soda
- Reduces the acidity in the stomach.
- Acts as an antacid which is used to treat stomach upset and indigestion
- Used in the process of washing as a water softener
- Due to the formation of soapy foam, it is used in fire extinguishers
- Removes the dirt off materials without damaging the properties of the material
- Acts as a pesticide
- Used in baking industries as carbon dioxide is generated (due to the decomposition of NaHCO3) which helps in the raising of the dough
- It is used in ear drops, cosmetics and personal care products
- It is used as a neutralizer to neutralize the effect of acid
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