Soda Ash Dense

Soda Ash Dense

Ingredient: sodium carbonate
CAS number: 497-19-8
Other names: Sodium carbonate anhydrous; Sodium carbonate solution; soda ash; disodium carbonate; Sodium carbonate-12C, 13C-depleted; calcined soda; Carbonic acid disodium salt; Sodium carbonate,high-purity; Sodium carbonate,dense; SODA ASH LIGHT; Anhydrous Sodium carbonate
Molecular formula: Na2CO3
Molar mass: 105.9784 g/mol (anhydrous)
Appearance: white solid, hygroscopic
Density: 2.54g/cm3 (anhydrous), 2.25g/cm3(monohydrate), 1.51g/cm3 (heptahydrate), 1.46g/cm3 (decahydrate)
Solubility in water: 7 g/100 mL (0 °C), 21.6 g/100 mL (20 °C), 450 g/L (100 °C)
Solubility: insoluble in ethanol, acetone
Bulk density of soda ash dense: 900kg/m³

Soda ash, also known as washing soda and soda crystals, is named sodium carbonate in chemistry. Soda ash dense is made from soda ash light. Get monohydrate sodium carbonate by dissolving soda ash light in water. Then soda ash dense is produced by heating the monohydrate. It is especially suitable for manufacturing top-grade glass such as float glass. Because it has a higher bulk density than soda ash light, thus it is easily controlled at high temperature.

Sodium carbonate is very widely used in many kinds of areas. In glass manufacture, when combined it with silica and calcium carbonate and heated to high temperatures, then cooled rapidly, glass is produced. Sodium carbonate is also used as a relatively strong base in various settings. For example, sodium carbonate is used as a pH regulator to maintain stable alkaline conditions necessary for the action of the majority of photographic developing agents. It acts as a very good conductor in the process of electrolysis. It is also used as a primary standard for acid-base titrations because it is solid and air-stable, making it easy to weigh accurately.

As a food additive (E500), sodium carbonate is used as an acidity regulator, anti-caking agent, raising agent, and stabilizer. As a bonding agent in casting, it is used to allow wet alginate to adhere to gelled alginate. As a foaming agent and an abrasive, sodium carbonate is used in toothpastes, where it acts and to temporarily increase mouth pH. As a water softener, it is used in water treatment formulations. In textile industry, it is used as a pre-treatment of textile fibers for dyeing. In daily life, sodium carbonate could effectively remove oil, grease, and alcohol stains. It is also used as a descaling agent in boilers such as those found in coffee pots, espresso machines, etc.

We produce sodium carbonate in large quantities from salt (sodium chloride) and limestone according to the Solvay process. At the bottom of the tower, calcium carbonate (limestone) was heated to release carbon dioxide:
CaCO3 → CaO + CO2
At the top, a concentrated solution of sodium chloride and ammonia entered the tower. As the carbon dioxide bubbled up through it, sodium bicarbonate precipitated:
NaCl + NH3 + CO2 + H2O → NaHCO3 + NH4Cl
The sodium bicarbonate was then converted to sodium carbonate by heating it, releasing water and carbon dioxide:
2 NaHCO3 → Na2CO3 + H2O + CO2
Meanwhile, the ammonia was regenerated from the ammonium chloride byproduct by treating it with the lime (calcium hydroxide) left over from carbon dioxide generation:
CaO + H2O → Ca(OH)2
Ca(OH)2 + 2 NH4Cl → CaCl2 + 2 NH3 + 2 H2O
This way recycles its ammonia, so the process consumes only brine and limestone, and has calcium chloride as only waste product.

Soda ash dense is available in 25kg bags or other packages according to the client. Full-time quality control departments are utilized at each of our plants. Perfect production system and complete quality monitor and control system are provided, thus ensures best quality of each product. Offering you lower operating costs, improved reliability, better environmental compliance and increased process efficiency, we are your choice.

Related Names
Heavy Soda Ash | Na2CO3 | Chemical Compound | Industrial Raw Material

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Our company is a specialized soda ash dense manufacturer based in China. We also provide bentonite, choline chloride, vitamin B2, riboflavin, betaine anhydrous, feed grade yeast powder, and much more.