Sodium Carbonate (Dence/Light) │ Na2CO3

washing soda | soda ash |soda crystals

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FCA, FOB, CIF, CFR, CPT Based on customer’s inquiry

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25 MT / 1 × 20 ft FCL


50 KG bags in Jumbo Bag 1MT



Sodium Carbonate Dence

Sodium Carbonate Light


Sodium carbonate is an inorganic intense alkaline compound with the formula Na2CO3. Sodium carbonate is also known as soda ash or Soda Crystals or washing soda.

Na2CO3 exists naturally and artificially. Ashes of trees grown in sodium-rich fields are excellent sources of Sodium carbonate. The natural method produces a limited amount; hence it is commonly produced through Synthetic processes including the Solvay process. To produce Sodium carbonate with the Solvay method, raw materials such as pure salt and limestone are necessary. All forms are white solid humidity absorbent powder.

Sodium carbonate has a varied range of applications in different industries, including cleaning and hygiene products, glass making and some cosmetics and personal care products.

Dence Soda Ash powder has the particle size about 250-450 microns with average particle size of 350 micrometers. Dence Sodium Carbonate is used in glass industry, pH adjustment, Soda production, detergent production, water hardness prevention and paper and pulp industries. This powder is soluble in water and its solubility increases with increasing of water temperature.

From the combination of Dence Sodium Carbonate with water, a strong alkaline solution with a pH of about 11.5 is formed. This is due to the presence of Sodium and the Alkaline composition of the powder, especially Sodium Hydroxide. The resulting aqueous solution of Dence Sodium Carbonate is a very strong base. This solution reacts very strongly with a large number of acids. This base solution decomposes in presence of heat and emit Disodium Oxide (Na2O), which is extremely harmful to the respiratory tract.


Production Method:


The invention relates to a production method of soda ash, in particular to a production method of heavy soda ash.

At present, heavy soda ash replaces light soda ash as an industrial raw material in many places, and the heavy soda ash has the advantages that certain particles can still keep satisfactory fluidity, dust flying and environmental pollution are reduced, and the heavy soda ash is convenient to unload, convey and automatically measure. However, the solid phase hydration method is mostly adopted for producing the heavy soda ash at present, the solid phase hydration method is used for producing the heavy soda ash, because of the limitation of the process, the particle size of the heavy soda ash is not uniform, the manufacturing cost is higher, in addition, the salt content and other impurities of the soda are not easy to control, while the common liquid phase hydration method is used for producing the heavy soda ash, although the heavy soda ash with uniform particle size and low salt content can be obtained, the particle size distribution of the sodium carbonate monohydrate is difficult to adjust, and because the agglomeration and caking phenomena of the sodium carbonate monohydrate crystals are difficult to eliminate, the crystallizer is easy to scar in the production process of the common liquid phase hydration method, and the service cycle of the crystallizer is short and is generally 6-.

Difference between Soda Ash Light Vs Dense


Soda Ash Light and Soda Ash Dence are both chemically identical compounds. With the only difference being their densities and size. Soda Ash has a finer density of 0.7 g/cc, while Soda Ash Dence is about 0.9g/cc. Meanwhile, they also have different applications in different industries.

The difference between Heavy and Soda Ash Light is in their density, particle size and application. These two substances are not chemically different from each other. Soda Ash Heavy has a bulk density of about 1000 kg/m3 and particles with a size of 300 to 500 microns. The density of Light Soda Ash is about 500 kg/m3 with particle size about 100 microns.


Soda ash is a vital raw material in the glass industry, but glass manufacturing is not the only use. Nevertheless, you cannot neglect the vast application of soda ash dense in glassmaking. In 2018, 53% of the 60 million tons of produced Na2CO3 consumed in the glassmaking industry.

Here you can see some of the application:

Both light and dense types are useful for the chemical industry. ‌Various chemicals such as sodium bicarbonate, sodium Silicate, etc. need Na2CO3 in their production procedures.

Furthermore, in paper and pulp production, it acts as a type of pH regulator. Moreover, it decolorizes waste paper.

Cleaning products, precisely environmentally-friendly types, contain sodium carbonate due to its antiseptic and fats permeability and breakdown. You may find it in laundry detergents, dishwasher detergents, multi-purpose cleaners, glass cleaners, stain removers, and laundry conditioners.

Sodium carbonate is a profound stain remover and bleacher; consequently, it is popular in the textile industry. It adjusts the pH of the procedure, additionally, in silk production, performs as an anti-acid.

Since the Soda Ash and Caustic Soda Application are similar to each, these 2 products have differences, if you are interested in finding out the differences, read the caustic soda flake page.

Usages:    Sodium carbonate is one of the basic materials for chemical industries, mainly used for
  • Metallurgy
  • Glass Manufacturing
  • Textile
  • Dye printing
  • Medicine
  • Synthetic detergent
  • Petroleum
  • Food industries
  • Chemical Industry
  • Environmental Application


Light Sodium Carbonate │ Na2CO3

Anhydrous sodium carbonate, which is also called soda ash, is formed by heating hydrates, sodium carbonate is an anhydrous white powder and a high purity humectant, and it is a strong alkaline compound and has melting point of 851 degrees Celsius. Which decomposes when heated. Light sodium carbonate is in the range of 90 to 150 μm. And it is among the materials that have various applications in different industries.


Light Soda Ash application in drilling industry

Light Soda Ash 99% Purity is used primarily to reduce soluble Calcium in water-base drilling muds and makeup waters. This chemical effectively and economically reduces calcium ions by reducing them as the insoluble carbonate, thus CaSO4 +Na2CO3 -> Na2CO3 + CaCo3 It is not recommended for treatment of cement contamination due to the increase in pH which occurs. It is particularly used for anhydrite contamination. Other uses include increasing pH and flocculating spud muds. Soda Ash Light have the following advantages for drilling industry:

  • Widely available and economical source of carbonate ions to precipitate Calcium while increase pH
  • Concentrate chemical, effectively removes Calcium in most drilling fluids at small treatments levels.
  • Effective flocculants for spud muds.

Applications of Light Soda Ash:


  • Detergent Manufacturing
  • Textile industry
  • Toothpaste production
  • Drilling industry
  • Used in making soap and detergents
  • Food industry
  • Paper industry
  • Production of fabrics
  • Salt refining
  • Water softening and dyeing

Safety tips

Inhalation of Heavy Soda can lead to side effects such as inflammation of the respiratory tract and lung damage. In case of dust inhalation, fresh air should be inhaled or artificial respiration should be used. Eye contact can cause permanent corneal damage or possible burns. Therefore, in case of eye contact with Soda Ash, eyes should be rinsed with water. When working with Soda safety clothing and accessories such as gloves, glasses and safety masks must be used.

Storage space for storing Heavy Soda Ash must be well ventilated and strong. This chemical should be stored in closed containers without contact with the outside environment and away from moisture. Heavy Washing Soda is stored in polyethylene bags.

For more information regarding handling, transport and first aid please refer to our Safety Data   Sheet (SDS).

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