Mainly produces a series of intermediate products based on naphthalene and benzene

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                    Sodium thiosulfate
                    Synonyms Sodium Thiosulfate (Big Soda)
                    Molecular weight 248.18
                    Molecular Formula

                    Na2S2O3.5H2O

                    Descriptions

                    Sodium Thiosulfate, the popular name is big soda, Hypo, belongs in transparent single crystal system.it is adourless and salty. Its specific gravity is 1.729. When be heated over 100°C ,it losts the 5 crystal water. It is easily soluble in water and unsoluble in alcohol. It will be decomposed in acid liquid and have strong reducibleness. It is easily dehydration when dry air over 33°C and deliquescence in moist air.

                    Specification
                    Index
                    High grade
                    1st grade
                    Purity %min.
                    99
                    98
                    Water insolubles %max.
                    0.01
                    0.03
                    Sulphur matter (by S) %max.
                    0.001
                    0.003
                    Fe %max.
                    0.001
                    0.003
                    PH (200g/L solution)
                    6.5-9.5
                    6.5-9.5
                    Uses Extra Best Best specification Use for fixer, exectnoplate, purify water, reducing agent in chemical industry,etc.
                    Packing In plastic woven bag of 50Kgs nett each with plastic lining.
                    Notes Stock in dry, cold storehouse, avoid sunlight and rain at transportation

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