Topics: Animal Refresher, Poultry Science

Water Glass Used for Egg Preservation

Water glass used for egg preservation is:

Sodium carbonate
Sodium sulphate
Sodium Chloride
Sodium Silicate

Water Glass Used for Egg Preservation

Water glass used for egg preservation is:

Options

Sodium carbonate
Sodium sulphate
Sodium Chloride
Sodium Silicate ✓

Correct Answer: D

Explanation in English

Correct Answer: Sodium Silicate

Water glass is the common name for Sodium Silicate (Na₂SiO₃). It is used in the water glass method of home egg preservation by sealing the pores of the eggshell.

How It Works

Eggs are immersed in a solution of 1 part sodium silicate in 10 parts water.
Silica from sodium silicate seals the pores of the eggshell, preventing entry of air and microorganisms, and loss of moisture and CO₂.
Eggs can be preserved for approximately 1 month at room temperature by this method.

Comparison of Home Egg Preservation Methods

Method	Chemical	Mechanism	Duration
Water glass method	Sodium Silicate (Na₂SiO₃)	Silica seals pores	1 month (room temperature)
Lime water method	Ca(OH)₂ → CaCO₃	CaCO₃ seals pores	1 month (room temperature)
Cold storage (oil-coated)	Oil + refrigeration at 14°C	Oil seals pores + cold	8 months
Cold storage (non-oil-coated)	Refrigeration at 14°C	Cold only	6 months

📚 About this Topic — Animal Refresher

This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.

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