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Product information
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SODIUM SULPHATE CRYSTAL
Sodium sulphate Na2SO4 is produced as the following product by viscose production by interaction of sulphuric acid with caustic soda or natrium salts.
Physical properties
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Qualitative characteristics |
Norm |
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Grade |
first |
premium |
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Appearance |
white crystal powder |
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Sodium sulphate content, %, not less |
98,5 |
99,6 |
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General alkalinity in re-calculation to Na2CO3, %, not more |
0,6 |
0,15 |
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Insoluble in water remainder content, %, not more |
1,0 |
0,15 |
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Magnesium and calcium content in re-calculation to CaSO4, %, not more |
0,05 |
0,01 |
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Iron content, %, not more |
0,008 |
0,003 |
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Zinc content, %, not more |
0,3 |
0,04 |
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Chlorides, %, not more |
0,06 |
0,01 |
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Water content, %, not more |
0,05 |
0,04 |
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Mass loss by calcination, %, not more |
0,3 |
0,2 |
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Notice: sodium sulphate produced not for synthetic detergents can have light shades |
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Application:
one of the basic components of furnace charge in glass production; by
wood processing (sulphite boiling of cellulose), by dyeing cotton
fabrics, for viscose silk production, different chemical compounds –
silicate and sodium sulphide, ammonium sulphate, soda, sulphuric acid;
in synthetic detergents production; solutions of sodium sulphate can be
used as accumulator of warmth in systems, keeping sun energy.
Packing: in laminated polypropylene bags with weight - 50 ± 2 kg
Loading: railroad car – 60 tons