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Soda Ash Light 99.2% (China Origin)

Soda Ash Light 99.2% (China Origin)
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Country Origin : China Appearence : White Crystal Powder
CAS No. : 497-19-8 H.S. Code : 2836.20.00
Formula : Na2CO3 Common Names : Soda Ash Light
IUPAC Name : Disodium carbonate
Packaging : 840 @ 25 kg PP/PE Bags, 21 MT / 20'FCL
  • Description
  • Application
Brief Overview

 

Soda ash light, also known as anhydrous sodium carbonate, has a formula of Na2CO3. It is a white, odorless granular powder and is soluble in water, giving a strong alkaline aqueous solution. It is also hygroscopic and absorbs moisture from the atmosphere, causing it to clump together. It exists mainly in its monohydrated form but there are decahydrated and heptahydrated forms. 

Soda ash light is naturally formed from sodium deposits, which have been through periods of long geological processes such as erosion of igneous rocks, transportation of sodium deposits and chemical reactions. Sodium deposits are first released from the igneous rocks upon weathering. They are then being washed off, carried down streams and collected in basins. Upon contact with carbon dioxide, it yields a soda ash light.

 

Manufacturing Process

Solvay Process

In 1861, Belgian chemist Ernest Solvay developed Solvay process, a more efficient method to convert sodium chloride to soda ash light. In Solvay process, ammonia reacts with sodium chloride with the aid of calcium carbonate. Sodium bicarbonate is produced and it is then heated and converted to soda ash light. 

 

Hou Process

In 1930, Chinese chemist Hou Debang developed the Hou process. Using carbon dioxide, it is pumped through a saturated solution of sodium chloride and ammonia to form sodium bicarbonate. The precipitated sodium bicarbonate is then heated, yielding pure soda ash. The Hou process is clearly a modified version of the Solvay process and the commonly used method is still Solvay process.

 



Intermediate Chemical

Soda ash light serves as a crucial reactant and is used to manufacture other sodium containing chemicals, such as sodium hydroxide, sodium bicarbonate and sodium silicate. Soda ash light is also added to boiling water to aid in the removal of flesh from skulls and bones effectively. This serves as an alternative method as compared to the use of insects for bone cleansing.

 

Detergent Industry

Soda ash light is used as a water softener in laundering. It competes with magnesium and calcium ions in hard water and prevents them from bonding with the detergent used. In addition, it aids in the removal of grease and wine stains. It is also used as a filter and pH adjuster when control of pH is crucial in manufacturing processes.

 

Textile Industry

Soda ash light is used in dyeing and is added to ensure proper bonding of dye with cellulose fibers. This can be done before dyeing, after dyeing or to be mixed with the dye. It also aids in bleaching and is used during de-acidification of spun rayon, tencel or hemp. In addition, it is used to increase the pH of the reaction because an ideal pH is required for the dyeing process.

 

Paper Industry

Soda ash light is used as a pH adjuster in the pulping process as an accurate and constant control over pH is required for efficiency. It also serves to neutralize the effluent streams and to process waste paper. In addition, it softens the wood chips and controls the pH conditions in the pulp cooking process.