Uses Of Sodium Sulphate (Na2SO4)
The demand for sodium sulphate is increasing in both the local and international markets. It has a wide range of uses , in detergents and other industrial purposes such as glass, textile dyeing , paper, medical industries, animal feed and some compound fertilizers.
2- Specifications of EMISAL – Sodium Sulphate Product
Item Analysis
Na2SO4 99 % minimum
NaCl 0.5 % maximum
Humidity 0.2 % maximum
Specific gravity 1.3-1.4 g/cm3
Shape free flowing crystals
Colour snow-white, 90% as compared with barium sulphate
pH Between 6-7 for the 1% solution
Size distribution of Sodium Sulphate :
Sodium Sulphate is produced in a size grading suitable for industry as follows:
Size Percent
Passing from 9 mesh (2000 micron) 100% wt
+ 20 mesh (800 micron) 2% wt Max.
+ 60 mesh (250 micron) 70% wt Max.
60 – 250 mesh (250 - 63 micron) 65% wt Max.
250 mesh (63 micron) 20% wt Max.
Chemical analysis according to ISO 3237 & 3241
The sodium sulphate produced from Lake Qarun contain heavy metals , iron and rare metals below the permissible limit .
3- Marketing of EMISAL Sodium Sulphate :
The marketing policy of the company moves along two lines.
To cover the domestic need and protect the Egyptian consumer from going back to importing the salt .
Export the surplus production to the international markets .
1- The Local Market :
The anhydrous sodium sulphate produced by EMISAL was well received by the local market. Now it covers all its demand. Total production during the period 1997 – 2008 is 1.3 million tons.
2-Export :
After satisfying the local market, EMISAL exports a substantial part of its production to the neighboring countries including Saudi Arabia, Jordan, Syria, Lebanon, Greece, Turkey, Sudan, Ereteria, Tunisia, Morocco and Others.