Sodium Carbonate CAS 497-19-8

Sodium Carbonate is a white, odorless powder or granular crystal with a strong alkaline taste. In the global market, it is categorized into two main types based on bulk density:

1. Heavy Soda Ash (Granular): Specifically designed for the glass industry. Its higher density and larger particle size minimize dust during transport and ensure better mixing with silica sand in furnaces.
2. Light Soda Ash (Powder): Primarily used in the detergent, chemical, and food industries where rapid solubility is required.

Our Soda Ash meets or exceeds the GB/T 210.1-2004 (Chinese National Standard), ensuring a total alkali content of ≥99.2%. It serves as a vital pH regulator, fluxing agent, and cleaning component across diverse industrial sectors.

Physicochemical Properties

Applications

1. Glass Manufacturing: The largest consumer of Heavy Soda Ash. It acts as a flux to lower the melting point of silica, used in flat glass, container glass, and fiberglass.
2. Detergents & Soaps: Used as a builder to emulsify oil stains and soften water by precipitating magnesium and calcium ions.
3. Chemical Synthesis: A key raw material for producing Sodium Silicates, Sodium Bicarbonate, Sodium Dichromate, and Sodium Tripolyphosphate.
4. Metallurgy: Used as a desulfurizer and dephosphorizer in steel and iron production, and as a flux in non-ferrous metal smelting.
5. Water Treatment: Acts as a cost-effective pH adjuster and water softener for industrial boilers and municipal wastewater.
6. Pulp & Paper: Used in the cooking process of wood pulp and as a bleaching agent regulator.

Storage Conditions

• Dryness is Critical: Sodium Carbonate is hygroscopic. It must be stored in a dry, well-ventilated warehouse to prevent caking and absorption of atmospheric moisture/CO2.
• Packaging Integrity: Ensure bags remain sealed. Do not store alongside acids, as a neutralizing reaction will occur, releasing carbon dioxide gas.
• Stacking: Keep bags on pallets to avoid direct contact with damp floors.

Safety Precautions

• Eye Protection: Sodium Carbonate is a strong alkaline irritant. Wear safety goggles. In case of contact, flush with water for at least 15 minutes.
• Respiratory Protection: During handling, especially with Light Soda Ash, wear a dust mask (N95/P2) to avoid irritation of the respiratory tract.
• Skin Care: Prolonged contact may cause dryness or irritation. Wear protective gloves and wash thoroughly after handling.
• Environmental: Avoid large-scale discharge into water sources as it will significantly raise the pH level, potentially harming aquatic life.