Sodium Carbonate

Store in a sealed and dry manner. It should be placed in a cool and well-ventilated warehouse, far away from ignition sources and heat.

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1. Product Information

Sodium carbonate is an inorganic compound, also known as soda ash or soda. It belongs to the category of strong-base weak-acid salts. At room temperature, it appears as a white crystalline powder, which is easily soluble in water and forms an alkaline aqueous solution.

Chemical formula of sodium carbonate: NaCO₃

Molecular weight: 105.99

CAS NO.: 497-19-8

Common specifications: For industrial-grade sodium carbonate, the common purity specifications include 99.2%, 99.5%, 99.8%, etc. For food-grade sodium carbonate, it must comply with national standards, with a purity of not less than 99.2% generally.

Soda Ash Lights Soda Ash Dense

PARAMETER	SPECIFICATION	TEST RESULTS
Total Alkali Content	99.2%MIN	99.46%
Chlorides (NaCl)	0.7% MAX	0.3%
Sulphate (SO₄)	0.03% MAX	0.02%
Iron (Fe₂O₃)	0.004% MAX	0.0008%
Water Insoluble Matter	0.04% MAX	0.0007%

SPECIFICATION	STANDARD	RESULTS
Total Alkali Content	99.2%MIN	99.59%
Chlorides (NaCl)	0.7% MAX	0.47%
Sulphate (SO₄)	0.03% MAX	0.007%
Iron (Fe₂O₃)	0.004% MAX	0.0005%
Water Insoluble Matter	0.04% MAX	0.02%
Ignition Loss	0.80% MAX	0.46%
Bulk Density	0.9G/ML MIN	1.1G/ML
Particle Size 180um Sieve Remaining	70%MIN	86.2%

Storage conditions

Store in a sealed and dry manner. It should be placed in a cool and well-ventilated warehouse, far away from ignition sources and heat. Avoid mixed storage with acids and deliquescent substances to prevent caking due to moisture absorption, which may affect its usability.

2.Physical Properties

At room temperature, sodium carbonate is a white, odorless powder or granule with hygroscopicity. When exposed to air, it will gradually absorb moisture and form hydrates.

The melting point of sodium carbonate is 851℃, and it decomposes at boiling point.

It is easily soluble in water, releasing heat during dissolution, and insoluble in organic solvents such as ethanol and ether.

Its aqueous solution is strongly alkaline, which can turn phenolphthalein indicator red.

3. Main Applications

● In the industrial field

Sodium carbonate is an important basic chemical raw material, widely used in glass manufacturing for producing flat glass, optical glass, etc.

● In the textile industry, it is applied to fiber scouring, bleaching and dyeing processes

In the papermaking industry, it is used in the pulping process to improve the whiteness and strength of paper. In the detergent industry, it serves as a builder to enhance the decontamination effect. In addition, it is also used in metallurgy, water treatment, tanning and other industries.

● Food-grade sodium carbonate can be used as a food additive

Applied in the fermentation adjustment of flour products and the acidity neutralization of food, etc.

4. Packaging Specifications

The common packaging of sodium carbonate includes plastic woven bags of 25kg, 50kg and 1000kg. Some food-grade products adopt double-layer packaging, with an inner layer of food-grade plastic bags and an outer layer of woven bags. Customized packaging specifications are also available according to customer requirements. The package should be clearly labeled with product name, specification, purity, manufacturer, production date, shelf life, as well as warning signs such as "Moisture Proof" and "Sealed".

5. Core Advantages

● As a basic chemical raw material

Sodium carbonate has a wide source of raw materials, low production cost and strong supply stability.

● It has stable chemical properties

Making it easy to store and transport.

● It has an extremely wide range of applications and is an indispensable raw material for many industries.

● Food-grade sodium carbonate has high safety performance

Complies with relevant national standards, and can be safely used in food processing.

● The purity of industrial-grade sodium carbonate can be adjusted according to needs to meet the production process requirements of different industries.

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