Sodium Carbonate 99.5%

Molecular formula: Na₂CO₃

Available in 200g, 400g, 1000g, 2000g, 3000g.

Sodium carbonate, also known as soda ash, is a white, anhydrous and hygroscopic powder with a purity> 99%. There are two forms of sodium carbonate, light soda and thick (granular) soda. Sodium carbonate has a melting point of 85 ° C, it decomposes when heated and therefore the boiling point cannot be determined. Sodium carbonate is an inorganic salt and therefore the vapour pressure can be considered negligible. It is soluble in water and its solubility increases with temperature. The average particle diameter (d50) of the light sodium carbonate is in the range 90 to 150 Pm and the dense sodium carbonate is in the range 250 to 500 Pm. Sodium carbonate is a strongly alkaline compound. The pKa of CO3 2- is 10.33, which means that at pH 10.33 both carbonate and bicarbonate are present in equal amounts.

1. Regulator pH in the aquarium:

Sodium carbonate is used as a pH regulator to maintain stable alkaline conditions.

2. Glass production:

When combined with silica, calcium carbonate and heated to high temperatures followed by rapid cooling, it produces glass. This type of glass is known as soda lime glass.

3. Water softener:

In domestic use, it is used as a water softener during washing. It competes with magnesium and calcium ions in hard water and prevents them from binding with the detergent used, effectively removes oil, grease and alcohol stains.

4. Chemistry:

In chemistry, it is often used as an electrolyte, sodium carbonate acts as a very good conductor in the electrolysis process, does not corrode the anodes. It is also used as the primary standard for acid-base titration as it is constant and stable in air, which facilitates accurate weighing.

5. Stuffing:

In taxidermy, sodium carbonate added to boiling water will remove flesh from the skull or bones of trophies, creating a "European top of the skull" or for educational demonstrations in biological and historical research.

6. Descaling:

Sodium carbonate is also used as a descaling agent in boilers such as those found in coffee pots, coffee makers, etc.

7. Colouring:

In dyeing with fibre-reacting dyes, sodium carbonate (often called soda ash fixative or soda ash activator) is used to ensure proper chemical bonding of the dye to cellulosic (vegetable) fibres, usually before dyeing (in the case of binding dyes), mixed with the dye (for dyeing with dye) or after dyeing (for dip dyeing).

8. Bricklaying:

Sodium carbonate is used in the brick industry as a wetting agent to reduce the amount of water needed to extrude the clay.

9. Casting:

In casting, it is referred to as a "binder" and is used to allow wet alginate to adhere to the gelled alginate.

10. Silver cleaning:

To clean silver, you can use sodium carbonate in solution with table salt. In a non-reactive container (glass, plastic or ceramic), aluminium foil and a silver object are immersed in a hot salt solution. Increased pH dissolves the aluminium oxide layer on the foil and allows the installation of an electrolytic cell, restoring metallic silver. Rinsing and gently polishing the silver restores its highly polished condition.

Buyer assumes all responsibility for safety and use not in accordance with directions.

PLEASE NOTE: This product is not for human or animal consumption.