What is Sodium Carbonate CAS 497-19-8?

Sodium carbonate, commonly called soda ash, is an anhydrous sodium salt of carbonic acid with the formula Na2CO3. It is supplied as a white powder or granular solid and used as an alkaline process chemical, glassmaking flux, water softener and cleaning ingredient.

What is the difference between heavy and light soda ash?

Heavy soda ash has higher bulk density and larger particle size, which reduces dusting and improves handling in glass furnaces. Light soda ash has lower bulk density and dissolves more readily, making it common in detergents and chemical processes where a lighter powder is preferred.

Why is heavy soda ash preferred for glass manufacturing?

Heavy soda ash supplies sodium oxide to the glass batch and lowers the melting temperature of silica. Its higher density and coarser particles mix more uniformly with silica sand, reduce dusting and help improve furnace efficiency and glass quality.

What are the main applications of Sodium Carbonate CAS 497-19-8?

Typical uses include flat and container glass, detergents and cleaners, water softening, pH adjustment, chemical manufacturing, pulp and paper, textiles and metallurgy. Food-grade applications require a grade that meets the applicable food or pharmacopeia requirements.

Sodium Carbonate CAS 497-19-8

Sodium Carbonate (soda ash, Na₂CO₃), CAS 497-19-8, is an alkaline industrial chemical supplied in heavy and light grades for glassmaking, detergents, water softening, chemical synthesis, pulp and paper and metallurgy. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 497-19-8
Synonyms: Disodium carbonate, Calcined soda, Carbonic acid disodium salt, Soda ash
Einecs: 207-838-8
Molecular Formula: Na₂CO₃
Grade: Industrial Grade (Heavy & Light)
Package: 25kg/50kg PP bags with PE liner, 1000kg/1200kg Jumbo bags.

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Product Description

Sodium Carbonate, CAS 497-19-8, also known as soda ash or disodium carbonate, is the anhydrous sodium salt of carbonic acid; the EC/EINECS number is 207-838-8.

Synonyms: disodium carbonate; calcined soda; carbonic acid disodium salt; soda ash.

CAS: 497-19-8.

Molecular formula: Na₂CO₃.

Molecular weight: 105.99 g/mol.

EC number: 207-838-8.

It is a white, odorless powder or granular crystal with a strong alkaline reaction.

Heavy soda ash has higher bulk density (about 0.90–1.20 g/cm³) and coarser particles, while light soda ash has lower bulk density (about 0.50–0.80 g/cm³).

It typically meets a total alkali content of at least 99.2% as Na₂CO₃.

Heavy soda ash is the main glassmaking flux, lowering the melting point of silica in flat, container and fiber glass.

Light soda ash is used in detergents, cleaners, water softening, chemical synthesis, pulp and paper and metallurgy.

It is used as a raw material for sodium silicate, sodium bicarbonate, sodium dichromate and sodium tripolyphosphate.

It is used in water treatment as a pH adjuster and water softener, and in steelmaking as a desulfurizer and dephosphorizer.

Confirm total alkali content, bulk density, particle size or sieve residue, chloride, iron, sulfate and water-insoluble matter.

Store in tightly sealed bags in a dry, ventilated area away from acids, as sodium carbonate is hygroscopic and reacts with acids to release carbon dioxide.

Keep bags on pallets to avoid contact with damp floors and prevent caking.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required grade, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Sodium Carbonate CAS 497-19-8?

A: Sodium carbonate, commonly called soda ash, is an anhydrous sodium salt of carbonic acid with the formula Na2CO3. It is supplied as a white powder or granular solid and used as an alkaline process chemical, glassmaking flux, water softener and cleaning ingredient.
Q:
What is the difference between heavy and light soda ash?

A: Heavy soda ash has higher bulk density and larger particle size, which reduces dusting and improves handling in glass furnaces. Light soda ash has lower bulk density and dissolves more readily, making it common in detergents and chemical processes where a lighter powder is preferred.
Q:
Why is heavy soda ash preferred for glass manufacturing?

A: Heavy soda ash supplies sodium oxide to the glass batch and lowers the melting temperature of silica. Its higher density and coarser particles mix more uniformly with silica sand, reduce dusting and help improve furnace efficiency and glass quality.
Q:
What are the main applications of Sodium Carbonate CAS 497-19-8?

A: Typical uses include flat and container glass, detergents and cleaners, water softening, pH adjustment, chemical manufacturing, pulp and paper, textiles and metallurgy. Food-grade applications require a grade that meets the applicable food or pharmacopeia requirements.
Q:
Which specifications should I check before ordering soda ash?

A: Confirm total alkali content as Na2CO3, bulk density, particle size or sieve residue, chloride, iron, sulfate and water-insoluble matter. Also state whether heavy or light grade is required for the intended process.

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