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Soda Ash

Soda Ash

Soda Ash

What is Soda Ash?

Sodium carbonate (Soda Ash), also known as soda ash is available in two forms, heavy / Dense and Light.

Sodium carbonate (Soda Ash) consists of two sodium atoms, one carbon atom and three oxygen atoms. It is a white, alkaline and odorless powder that is soluble in water and has a salty taste. In our company, Pars Bitumen), Sodium carbonate, also known as Washing Soda, Soda Ash, or Soda Crystals, is an inorganic compound with the chemical formula Na2CO3.

Sodium carbonate (Soda Ash) is a naturally occurring mineral found in various forms in nature, such as Trona rock, Nacolite and Thermonatite. Trona ore, also known as Trisodium Hydrogen carbonate dihydrate, is the most common natural source of sodium carbonate.

Sodium carbonate (Soda Ash) plays an essential role in various industries such as soap and detergents production, glass and paper. It is also used in water purification, food production and as a laboratory reagent. This compound has countless properties that make it useful in various applications. Its properties include its ability to act as a buffer and as a flux, as well as its alkaline nature and unique chemical properties.

​In addition to its natural sources, sodium carbonate (Soda Ash) can also be synthesized industrially through the Solvay process. The Solvay process involves the reaction of sodium chloride, ammonia and Carbon Dioxide to produce sodium carbonate and calcium chloride.


Sodium Carbonate (Soda Ash) Properties:

The properties of Sodium Carbonate (Soda Ash) are divided in to Physical and Chemical Characteristics. Physical characteristics includes Appearance, Melting Point, Density, Solubility, Odor, and Taste. Chemical characteristics are classified as Acidity or basicity, pH, Reactivity, Decomposition, Hygroscopic


Physical properties of Sodium Carbonate (Soda Ash):

Appearance: What is sodium carbonate? Sodium carbonate appears as a white crystalline powder. It is hygroscopic, meaning it readily absorbs moisture from the atmosphere and forms an aqueous solution.

Melting point: The melting point of sodium carbonate is 851 degrees Celsius. It decomposes before boiling.

Density: The density of sodium carbonate is 2.53 grams per cubic centimeter.

Solubility: Sodium carbonate is soluble in water. Solubility increases with increasing temperature.

Odor: Sodium carbonate is odorless.

Taste: Sodium carbonate has a slightly alkaline taste.


chemical properties of Sodium Carbonate (Soda Ash):

 Acidity or basicity: Sodium carbonate (Soda Ash) is a weak base. It reacts with acids and forms neutral salts.

pH: The pH of sodium carbonate (Soda Ash) solution is about 11, which makes it alkaline.

Reactivity: Sodium carbonate (Soda Ash) reacts with many acids and produces carbon dioxide gas.

Decomposition: At high temperatures, sodium carbonate (Soda Ash) decomposes and releases carbon dioxide and sodium oxide.

Hygroscopic: Sodium carbonate (Soda Ash) readily absorbs atmospheric moisture and forms an aqueous solution.

Soda Ash

Soda Ash

What are Applications of sodium carbonate?

Sodium carbonate (Soda Ash) is a very versatile compound used in a variety of industrial, commercial and household applications. It has a wide range of properties that make it suitable for use in various industries. In this part, we discuss the uses of sodium carbonate in detail.


  • Glass Production:

Soda Ash is a vital component in glass making. It is used as a fluxing agent to lower the melting temperature of silica, which is the main component of glass. Sodium carbonate also helps control the pH level during the glass making process, thus improving the clarity and quality of the glass produced.


  • Detergents Production:

Sodium carbonate (Soda Ash) is used as a key ingredient in the production of detergents. It acts as a water softener and helps reduce water hardness, which makes cleaning clothes and other materials more efficient. In addition, sodium carbonate combines with other detergents to form a necessary cleaning agent that can easily remove dirt, grease, and stains.


  • Food Industry:

Sodium carbonate (Soda Ash) is sometimes used as a food additive, mainly as an acidity regulator. It helps regulate pH levels in various food products such as canned fruits and vegetables, beer, and wine. In addition, sodium carbonate is also used to modify the texture and taste of some food products such as noodle products, soft drinks and baked goods.


  • Paper Production:

Sodium carbonate (Soda Ash) plays an important role in paper production. It is used to break down cellulose fibers and make a pulp that can be made into paper. Sodium carbonate also helps control pH levels during paper production, resulting in stronger, whiter, and more durable paper.


  • Water Refinery:

Sodium carbonate (Soda Ash) is used as a pH stabilizer in wastewater treatment. It helps to maintain the pH level of the purified water, which removes various impurities and harmful substances. It also helps remove calcium and magnesium ions from water, reducing water hardness that can lead to scaling and corrosion of equipment and plumbing fixtures.


  • Textile Production:

Sodium carbonate (Soda Ash) is also used as a key component in textile production. It is used to modify the pH level during textile dying and printing processes, which helps to produce fast dyed textiles with vivid colors. Sodium carbonate is also used as a weight-reducing agent that helps remove starch and other sizing materials from fabric to achieve better dye penetration.


  • Metallurgy:

Sodium carbonate (Soda Ash) is widely used in metallurgy. It is used to strengthen aluminum alloys, to remove sulfur and other impurities from iron ore before melting, and to produce several useful metallurgical compounds such as sodium chromate, which is used in electroplating.


  • Oil Industry:

Sodium carbonate (Soda Ash) is highly used in the oil industry. Crude oil is used to neutralize and remove acidic contaminants, which improves its quality and reduces corrosion in pipelines and refineries. Additionally, sodium carbonate (Soda Ash) is used to treat drilling muds, which are essential fluids used in drilling wells.


Due to the unique properties of sodium carbonate (Soda Ash), it is also used in other applications, such as:

– Batteries: Sodium carbonate (Soda Ash)is used as an electrolyte in several types of batteries.

– Health and personal care products: Sodium carbonate (Soda Ash) is used as a pH balancer in toothpaste, mouthwash, and hair care products.

– Cleaning products: Sodium carbonate (Soda Ash) is used in cleaning materials such as cleaning powder and oven cleaner to effectively remove grease and stains.

– Photography: Sodium carbonate (Soda Ash) is used in photography as a developing agent to create black and white images.

What are Hazards of Sodium Carbonate (Soda Ash)?

During application of Sodium carbonate (Soda Ash) certain cautions must be taken otherwise hazards may happen if not used correctly. In this section, we explain the possible hazards of using sodium carbonate (Soda Ash).


Irritation: Sodium carbonate (Soda Ash) can cause skin and eye irritation on contact, especially when used in solid form. It is recommended to use gloves and protective glasses when working with soda ash to avoid such side effects. In case of contact, immediately wash the affected area with water.

Corrosive: Sodium carbonate (Soda Ash) is highly corrosive and can damage metals including aluminum, copper, and brass if left in contact for long periods of time. It can also corrode concrete and other building materials.

Toxicity: Consuming large amounts of sodium carbonate (Soda Ash) can cause acute poisoning. Sodium carbonate is a strong alkali and can cause burning and irritation of the mouth, throat and digestive tract. Symptoms of acute poisoning may include abdominal pain, nausea, vomiting, diarrhea, and respiratory distress. In severe cases, consuming large amounts of sodium carbonate can cause metabolic alkalosis, a life-threatening condition caused by an excessive build-up of alkalinity in the blood.

Inhalation of sodium carbonate (Soda Ash) dust or mist can also lead to acute toxicity. Sodium carbonate is a respiratory stimulant and can cause coughing, wheezing and shortness of breath. Long-term exposure to sodium carbonate dust or mist can cause chronic respiratory problems such as bronchitis, asthma, and emphysema.

Environmental effects: Sodium Carbonate (Soda Ash) can harm aquatic life and vegetation if disposed of carelessly. It raises the pH level of the water and affects the natural balance of aquatic habitats. It is important to dispose of sodium carbonate responsibly in accordance with local regulations.

Fire Hazard: Sodium carbonate (Soda Ash) is not flammable but can release carbon dioxide when exposed to heat, which can act as a fire retardant. However, it can increase the risk of fire by extinguishing flames and reducing oxygen levels in the vicinity.

Explosion hazard: Sodium carbonate (Soda Ash) reacts easily with other chemicals such as strong acids and oxidizing agents, which can lead to an exothermic reaction that produces significant amounts of heat. The heat can then cause a thermal explosion.


​ Production Method of Sodium carbonate (Soda Ash):

There are energy methods for producing sodium carbonate, including the Solvay process, trona mining, and synthetic production. These methods all involve complex chemical reactions and require specialized equipment and skills. However, with the increasing use of sodium carbonates in various industries, it is expected that new and more efficient methods will be developed to respond to these methods.

Here we (Pars Bitumen) explain some methods of sodium carbonate production as below:


The Solvay method is a widely used method for the production of sodium carbonate. It involves converting sodium chloride to sodium bicarbonate using ammonia and carbon dioxide. The bicarbonate is then heated to produce sodium carbonate. This process has been used since the 19th century and is still used today.

The Solvay Process is a complex chemical reaction that involves steps. First, calcium carbonate (limestone) is heated to produce lime (calcium) and carbon dioxide. The lime is then mixed with ammonia and carbon dioxide, which produces a solution of ammonium carbonate. Then this solution is treated with calcium chloride to produce solid calcium carbon and ammonium chloride. Ammonium chloride is recycled back into the process, and calcium carbonate is heated to produce oxygen and carbon dioxide, which are used in the first step of the reaction.

Then sodium bicarbonate (Soda Ash) is produced by the reaction of ammonium carbonate solution with sodium chloride. The solution is then heated, which produces bicarbonate, sodium carbonate, and carbon dioxide.


 Trona Mining Method:

Trona is a natural mineral that contains sodium carbonate (Soda Ash). Trona mining in Pars Bitumen involves crushing the mineral and then heating it to produce sodium carbonate. This process has energy similar to the Solvay process and is less applied in areas where high energies can be obtained.


Artificial production Method:

Sodium carbonate can be produced artificially through practical methods including Hou process, Leblanc process and ammonia process. In response to the question, what is sodium carbonate? He said that this substance includes the reaction of various chemicals such as sodium chloride, sulfuric acid and ammonia in a series of chemical reactions. In the production of low sodium synthetic carbons, the Solvay process or, if common, the Trona process, uses it to produce high purity sodium carbonate.

  • HOu process:

Sodium bicarbonate is produced from the reaction of sodium chloride, sulfuric acid and ammonia. The bicarbonate is then heated to produce sodium carbonate and water. This process is less energy intensive than the Solvay process but requires high quality sulfuric acid.

  • The Leblanc process:
    This involves the reaction of sodium chloride with sulfuric acid and calcium sulfide to produce sodium sulfate and hydrochloric acid. Sodium sulfate is then reacted with limestone and coal to produce calcium sulfide and carbon dioxide. Carbon dioxide is used to convert calcium sulfide to calcium carbonate, which is used to produce carbon and then carbon oxide. Then lime reacts with sodium sulfate and produces sodium carbonate and calcium sulfate.
  • Ammonium Soda Process:

This method involves the reaction of sodium chloride and dioxydonium for ammonium carbonate to produce ammonium bicarbonate. Ammonium bicarbonate is then heated to produce sodium carbonate, and Dicarbonate Oxide.



Sodium carbonate (Soda Ash) is an essential mineral chemical compound that has many uses in industries such as glassmaking, papermaking, and laundry detergent production. It has physical and chemical properties that make it very versatile and useful for different purposes. Its alkaline nature and solubility properties make it an excellent cleaning agent and a key ingredient in many products used daily in homes and industries. Also considering the growing industries, it is unavoidable for the industries to use this substance. With this aim Pars Bitumen started the supply of (Sodium carbonate) Soda Ash and export it to many countries all over the world.