It is mainly used in paper, leather, glass and so on.
Specification:
NA2SO4: 99 % MIN
Ca AND Mg (MG): 0.15 % MAX
IRON CONTENI (Fe): 0.002 % MAX
MOISTURE: 0.2 % MAX
WATER INSOLUBLES: 0.05 % MAX
WHITE DEGREE: 80 % MIN
PH VALUE: 9-11.
Molecular formula:Na2O4S
molecular weight:142.03
CAS#:7757-82-6
Density: 2.7
Melting point: 884-885 °C
Boiling point: 1700 °C
Physical and chemical properties: white monoclinic crystal or powder.The relative density is 2.68.Melting point is 884 ºC.Soluble in water, aqueous solution is alkaline.Soluble in glycerin, insoluble in ethanol.Exposure to air is easily hygroscopic and becomes aqueous sodium sulfate.Converted to hexagonal crystallization at 241ºC.High purity, fine particles of anhydrous matter known as sodium sulfate.
Use, used in the manufacture of sodium sulfide, sodium silicate, also used in papermaking, glass, printing and dyeing, synthetic fiber, leather and other industries.
Packing, storage and transportation: packed in plastic woven bags lined with polythene bags, each with a net weight of 50kg or 100kg.It should be stored in a ventilated and dry storeroom.Be in summer or temperature is higher area easy melt and form chunk, when storage carries, answer moistureproof, prevent rain.Be careful not to be pierced by nails or sharp sharp edges and corners of the hard objects, resulting in product leakage.Do not mix with food, coal, cement and so on to prevent pollution.Fire can be put out with water and various fire extinguishers.
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