POTASSIUM SODIUM TARTRATE |
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Scientific Name: Rochelle Salt
Molecular Formula: KNaC4H4O6·4H2O
Structural Formula: Product Pictures:
Molecular Weigh: 282.23
CAS Number: 6381-59-5
Character: Colorless crystals or white crystal,specific gravity is 1.79,PH value is 6.8~8,the melting point is 70~80°C.Have minute efflorescence in the heat air,lose some water when heated to 60°C,and lose 3 water molecules at 100°C,become salt without water at 215°C. Freely insoluble in water, the solution assumes minute alkalescence.
Uses: This product is used as reducer in plating of printing, mirror, and thermos industries; as complexing agent in electroplating industry;as laxative agent in pharmacy in the making of crystal speakers and microphones in telecom industry; as desalting agent in chemical fertilizer industry; and also used in glass industry and other industries.
Packing: 25kg complex bag
Specifications: US FCC(IV) (Food grade)
US FCC(IV) |
Item |
Index |
Content % |
99.0~102.0 |
Alkalinity |
passed |
Arsenic(As) ≤% |
0.0003 |
Clarity |
passed |
Heavy metals(Pb)≤% |
0.001 |
Water% |
21~27 |
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