Supplier of Dence Soda Ash (sodium bicarbonate) from Dubai UAE

Dense Soda Ash

DESCRIPTION OF DENSE SODA ASH

The chemical formula of sodium carbonate is Na2CO3, the common name is soda ash, soda and washing soda. Under normal circumstances, it is a white powder and a strong electrolyte. Sodium carbonate is a weak acid and strong base salt (soda ash is a salt, not an alkali, but the solution is strongly alkaline). Chemically produced Na2CO3 is purer than trona, so people call it “soda ash”. Soda ash has a density of 2.532g/cm3 and a melting point of 851°C. It is easily soluble in water and has the properties of a salt. It is a weak acid salt, slightly soluble in absolute ethanol, insoluble in propanol, and will be hydrolyzed after being dissolved in water. The reaction makes the solution alkaline and corrosive. It can neutralize with acid to generate corresponding salt and release carbon dioxide. It can be decomposed at high temperature to produce sodium oxide and carbon dioxide. Long-term exposure to the air can absorb moisture and carbon dioxide in the air, generate sodium bicarbonate, and form hard lumps. Sodium carbonate is very hygroscopic, it is easy to form hard lumps, and does not decompose under high temperature. Sodium carbonate and water generate three hydrates: Na2CO3·10H2O, Na2CO3·7H2O, and Na2CO3·H2O. Among them, Na2CO3·Chemicalbook10H2O is the most stable and has a very small heat of dissolution in water. It is mostly used in the photographic industry, and its trade name is Carbon Oxygen. Na2CO3·10H2O is also called crystalline alkali, which is easy to weather in dry air. Previously, crystalline alkali was often used for household washing and wool washing, so it is also called “washing alkali”.

Soda ash dense is the trade name for sodium carbonate (Na₂CO₃). It is synthetically produced in large quantities from salt (sodium chloride) and limestone by a method known as the Solvay process. The pure product appears as a while, odorless powder with a strong alkaline taste. It has high hygroscopicity. It can be easily dissolved in water to form an aqueous solution with moderate alkalinity. Sodium carbonate has wide applications in various kinds of fields around the world. One of most important applications of sodium carbonate is for the manufacturing of glass. Based on statistics information, about half of the total production of sodium carbonate is used for the manufacturing of glass. During the production of glass, sodium carbonate acts as a flux in the melting of silica. In addition, as a strong chemical base, it is used in the manufacturing of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner. In addition, it can also be used for tissue digestion, dissolving amphoteric metals and compounds, food preparation as well as acting as a cleaning agent.

USAGE OF DENSE SODA ASH

Soda Ash Dense or sodium carbonate dense (also known as washing soda), Na2CO3 is a sodium salt of carbonic acid. It most commonly occurs as a crystalline heptahydrate, which readily effloresces to form a white powder, the monohydrate. Soda Ash Dense is domestically well known for its everyday use as a water softener. It has a cooling alkaline taste, and can be extracted from the ashes of many plants. It is synthetically produced in large quantities from table salt and limestone in a process known as the Solvay process. The manufacture of glass is one of the most important uses of Soda Ash Dense. When it is combined with silica (SiO2) and calcium carbonate (CaCO3) and heated to very high temperatures, then cooled very rapidly, glass is produced. This type of glass is known as soda lime glass.

Soda Ash Dense is also used as a relatively strong base in various settings. For example, Soda Ash Dense is used as a pH regulator to maintain stable alkaline conditions necessary for the action of the majority of developing agents. It is a common additive in municipal pools used to neutralize the acidic effects of chlorine and raise pH. In cooking, it is sometimes used in place of sodium hydroxide for lying, especially with German pretzels and lye rolls. These dishes are treated with a solution of an alkaline substance in order to change the pH of the surface of the food and thus improve browning. In taxidermy, Soda Ash Dense added to boiling water will remove flesh from the skull or bones of trophies to create the “European skull mount” or for educational display in biological and historical studies. In chemistry, it is often used as an electrolyte. This is because electrolytes are usually salt-based, and Soda Ash Dense acts as a very good conductor in the process of electrolysis. Additionally, unlike chloride ions which form chlorine gas, carbonate ions are not corrosive to the anodes. 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. In domestic use, it is used as a water softener during laundry. It competes with the ions magnesium and calcium in hard water and prevents them from bonding with the detergent being used. Without using washing soda, additional detergent is needed to soak up the magnesium and calcium ions. Called Washing Soda, Soda crystals or Sal Soda in the detergent section of stores, it effectively removes oil, grease, and alcohol stains. Sodium carbonate is also used as a descaling agent in boilers such as found in coffee pots, espresso machines, etc.

APPLICATION OF DENCE SODA ASH

Dense soda ash is an anhydrous substance mostly used in the manufacturing of industrial chemicals. Soda Ash Dense is a stable powder used in alkaline powder blends where a heavier bulk density is required. Soda Ash Dense is the grade preferred for glass manufacture because its granular properties make it dust free and reduce the risks of segregation during transport and handling. Soda Ash Dense is an industrially manufactured chemical product that is commonly and widely used in the processes of manufacturing high-quality flat glass, glass containers, and detergents, raw material for melting; production of sodium derivatives; desulfurization of pig iron and removal of acidic components. Dense soda ash products, in their purest and highest-quality form, are made by the combination of a consistently high sodium carbonate content with very low impurity levels of iron and most chlorides. Due to their typically high levels of chemical purity, soda ash dense can be used to make higher quantities of manufactured glass and detergent products, making them a highly efficient and time- and cost-reducing chemical applicant. Dense soda ash’s high suitability and efficiency as a chemical applicant is largely thanks to three key qualities: its particle size uniformity, its few issues with soda ash fines, and its lower levels of chlorides and iron. Dense soda ash can be used in water treatment formulations as a water softener, as a reagent in glass manufacturing, or as a pre-treatment of textile fibres for dyeing or any chemical process requiring alkaline pH condition.

Used to make water glass, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, trisodium phosphate, etc.
In the metallurgical industry, it is used as a smelting flux and a flotation agent for ore dressing, and as a desulfurizing agent in steelmaking and antimony smelting.
Used as a water softener in the printing and dyeing industry.
In the tanning industry, it is used for degreasing raw leather, neutralizing chrome tanned leather and improving the alkalinity of chrome tanning liquid.
Used for float glass, kinescope glass bulb, optical glass, etc.
As a buffer, neutralizer and dough improver, it can be used in cakes and pasta foods, and used in appropriate amounts according to production needs.
Used as detergent for wool rinsing, bath salt and medicine, alkali agent in tanning leather.
Used in the food industry as a neutralizer and leavening agent, such as the manufacture of amino acids, soy sauce and pasta foods such as steamed bread and bread. It can also be mixed with alkaline water and added to pasta to increase elasticity and ductility.
Color TV special reagents
Used as analytical reagent, also used in the pharmaceutical industry and photographic plate making.

APPLICATION OF SODA ASH DENCE IN THE GLASS INDUSTRY

A version of sodium carbonate is known as an important ingredient in the glass industry. This material lowers the glass formation temperature from 1700°C to 1500-1450°C. This reduction in temperature means saving energy and increasing the fireproof life of the glass.

In the glassmaking process, other materials such as feldspar or nepheline syenite can be added to the original mixture to lower the temperature to a desired level and produce glass that dissolves in water. In order to increase the stability of the glass, other materials such as CaO and MgO may also be added to the mixture.

Less than 20% of the total volume of glass is made of soda-lime, but this type of glass accounts for the most expense, which is allocated to flat glass, window glass, and glassware. There are other types of glasses that use less sodium carbonate. These types of glass include borosilicate glass, Pyrex, TV glass, laboratory equipment, fiberglass, and monitors.

Sodium carbonate is widely used in the glass industry, and in this industry it can help improve the glass production processes and improve the final quality of glass products. Some of its applications in the glass industry are:

1- Preventing the accumulation of sediments: It is used as a floating material in the glass production process. This feature helps to prevent the accumulation and sedimentation of minerals in the molten glass reservoirs.

2- pH adjustment: pH balance of the environment is one of the important factors in glass production. It is used as a pH adjusting agent to create the right pH environment for glass making processes.

3- Reducing the melting temperature: it can reduce the melting temperature of glass. This can lead to a reduction in energy consumption in the glass melting and production process.

4- Preventing the formation of bubbles: It is also used as a foamer in the production of glass. These bubbles can remove pollutants from the glass and help improve its quality.

5- Combating the effects of organic salts: It can prevent the effects of organic salts in the glass production process and help improve the quality of glass.

These applications are used in the production of various types of glass, from flat glass and window glass to borosilicate glass, Pyrex, TV glass, laboratory equipment, etc.

PHYSICAL PROPERTIES AND HYDRATES OF DENCE SODIUM CARBONATE

The three known hydrates exist in addition to anhydrous sodium carbonate, Na2CO3.

Sodium carbonate monohydrate (Na2CO3.H2O), which contains 85.48 % Na2CO3 and 14.52 % water of crystallization. It separates as small crystals from saturated aqueous solutions above 35.4 °C, or it may be formed simply by wetting soda ash with the calculated quantity of water at or above this temperature. It loses water on heating, and its solubility decreases slightly with increasing temperature. In contact with its saturated solution it is converted to Na2CO3 at 109 °C.

Sodium carbonate heptahydrate (Na2CO3.7H2O), which contains 45.7 % Na2CO3 and 54.3 % water of crystallization. It is of no commercial interest because of its narrow range of stability, which extends from 32 °C to 35.4 °C.

Sodium carbonate decahydrate (Na2CO3.10H2O), commonly called “sal soda” or “washing soda” which usually forms large transparent crystals containing 37.06 % Na2CO3 and 62.94 % water of crystallization. It may be crystallized from saturated aqueous solutions below 32.0 °C and above -2.1°C or by wetting soda ash with the calculated quantity of water in this temperature range. The crystals readily effloresce in dry air, forming a residue of lower hydrates, principally the monohydrate.

CHEMICAL PROPERTIES OF DENCE SODIUM CARBONATE

Sodium carbonate is hygroscopic. In air at 96 % R.H. (relative humidity) its weight can increase by 1.5 % within 30 minutes. If sodium carbonate is stored under moist conditions, its alkalinity decreases due to absorption of moisture and carbon dioxide from the atmosphere. Water vapor reacts with sodium carbonate above 400 °C to form sodium hydroxide and carbon dioxide. Sodium 8 carbonate is readily soluble in water and the resulting solutions are alkaline, as expected a salt formed from a strong base and weak acid. At 25 °C the pH of 1, 5 and 10 wt % solutions are 11.37, 11.58 and 11.70 respectively (Eggman, 2001). Sodium carbonate reacts exothermically with chlorine above 150 °C to form NaCl, CO2, O2 and NaClO4.

THE DIFFERENCE BETWEEN SODA ASH LIGH AND DENCE

The main difference between light and heavy sodium carbonate is related to their density and physical properties. Below are the main differences between these two types of carbonates:

It is well known that there are two main types of soda ash: dense and light.

Physical property: there is no difference in chemical formula between the two. The difference in size mainly lies in physical properties, such as loose density, particle size and shape, and resting Angle. Generally, the density of soda ash light is 500-600kg/m3, the density of soda ash dense is 1000-1200kg/m3.
Price difference: soda ash dense is higher than light
Production method: It is mainly produced by the ammonia-alkali method, which uses raw salt and limestone as raw materials to produce soda ash light by chemical synthesis method, and soda ash dense is produced by solid-phase water method.
Soda ash dense is mainly produced by natural alkali method, with natural alkali as raw material, and by evaporation method or carbonization method.

Density:

Light sodium carbonate: It has a lower density and is also known as “Light Sodium Carbonate” or “Light Soda Ash”.
Heavy sodium carbonate: It has a higher density and is also known as “Dense Sodium Carbonate” or “Soda Ash Dense”.

Applications:

Light sodium carbonate: commonly used in the detergent manufacturing, water and wastewater treatment, and glass manufacturing industries.
Heavy sodium carbonate: mostly used in concentrated industries such as glass production, water treatment, metal treatment, and various industrial industries.

Physical characteristics:

Light sodium carbonate: It is in the form of white to colorless and odorless powder.
Heavy Sodium Carbonate: Also produced in powder form, but has a higher density and a slightly more concentrated appearance.

The higher density difference of heavy sodium carbonate makes it a more suitable choice for some industries that require larger amounts of this compound. The choice between light and heavy type is related to the specific characteristics and needs of each industry and process.

STORAGE GUIDE OF DENCE SODA ASH

Light sodium carbonate should be stored in dry and cool environments and away from moisture. Also, the proximity of this compound with acidic and combustible materials should be avoided. In case of contact with air, this substance loses its powder form and becomes lumpy. It is recommended to stay away from materials such as aluminum, acids, fluorine, lithium, etc. It should be kept to prevent the mixing of these materials with its soda.

PACKING OF DENCE SODIUM CARBONATE

Bulk shipload up to approximately 15,000 MT per vessel
One-ton block bottomed woven polypropylene bags
50 kg woven polypropylene bags with inner polythene liner
(bags 50-KG which repacked on 1000 or 1200 kg) and 1200 KG Jumbo bags

TECHNICAL DATA SHEET OF DENCE SODA ASH

CHEMICAL COMPOSITION	UNIT	Min	Max
Sodium Carbonate(Na2Co3)	%wt	99.2	99.6
Sodium Chliride(NaCl)	%wt	0.5	0.7
Sodium Bicarbonate(NaHCo3)	%wt	-	0.1
Sodium Solfate(Na2So4)	%wt	-	0.05
Iron(Fe)	ppm	-	50
Loss on heating	%wt	-	0.2
Moistore	%wt	-	0.2
Ni	ppm	-	30
Cr	ppm		10
Mn	ppm	-	10
Cu	ppm	-	30
Characteristics
Total Alkalinity	%wt	58.12	58.42
Pouring Density	g/cm3	0.45	0.6
Mesh <40	%wt		40
Mesh 40-140	%wt		59
Mesh >140	%wt		1