Soda Ash

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Sodium Carbonate / Na₂CO₃

CAS Number:497‑19‑8

Synonyms:Soda ash; Washing soda (when hydrated); Sal soda; Calcined soda; Sodium carbonate

Chemical Formula:Na₂CO₃

Molecular Weight:105.99 g/mol

Product Introduction

A white, odorless, water-soluble powder; strongly alkaline in aqueous solution. Produced via the Solvay process or mined from trona deposits, soda ash is used in large volumes for glassmaking and detergent manufacturing

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Physical & Chemical Properties

Property Value
Appearance White crystalline/ powder
Density (anhydrous) ~2.54 g/cm³
Melting Point ~851 °C
Solubility in Water Highly soluble; forms alkaline solution
pH (1 % solution) ~11.5
Hydrates Available Decahydrate, heptahydrate, monohydrate; calcined (anhydrous)

Applications

  • Glass manufacture :dense soda ash is preferred
  • Detergents & soaps : water softening and cleaning
  • pH control :water treatment, environmental alkalinization
  • Chemical intermediate :sodium salts, sodium bicarbonate
  • Other uses :enameling, petroleum, cleaning, pool maintenance

Safety & Handling:

  • Irritant to skin/eyes; NFPA Health 2. Handle with gloves/eye protection; store dry to avoid caking.

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