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Sulfate

Many examples of ionic sulfates are known, and many of these are highly soluble in water. Exceptions include calcium sulfate, strontium sulfate, and barium sulfate, which are poorly soluble. The barium derivative is useful in the gravimetric analysis of sulfate: one adds a solution of, perhaps, barium chloride to a solution containing sulfate ions. The appearance of a white precipitate, which is barium sulfate, indicates that sulfate anions are present.

The sulfate ion can act as a ligand attaching either by one oxygen (monodentate) or by two oxygens as either a chelate or a bridge.[1] An example is the neutral metal complex PtSO4P(C6H5)32 where the sulfate ion is acting as a bidentate ligand. The metal-oxygen bonds in sulfate complexes can have significant covalent character

- Sodium Sulfate
- Iron Sulfate
- Iron Sulphate
- Zinc Sulfate
- Magnesium Sulfate
- Manganese Sulfate
- Barium Sulfate
- Ammonium Sulfate
- Copper Sulfate
- Ferrous Sulfate
- Basic Chromium Sulfate
- Tin Sulfate
- Calcium Sulfate
- Ferric Sulfate
- Potassium Sulfate
- Lithium Sulfate
- Aluminium Sulfate


  Sodium Sulfate

Sodium sulfate is the sodium salt of sulfuric acid. Anhydrous, it is a white crystalline solid of formula Na2SO4; the decahydrate Na2SO4·10H2O has been known as Glauber's salt or, historically, sal mirabilis since the 17th century. With an annual production of 6 million tonnes, it is one of the world's major commodity chemicals.

Sodium sulfate is mainly used for the manufacture of detergents and in the Kraft process of paper pulping. About two thirds of the world's production is from mirabilite, the natural mineral form of the decahydrate, and the remainder from by-products of chemical processes such as hydrochloric acid production.



  Ferrous Sulfate

Iron(II) sulfate is the chemical compound with the formula (FeSO4). Also known as ferrous sulphate, or copper as, iron(II) sulfate is most commonly encountered as the blue-green heptahydrate. In its anhydrous, crystalline state, its standard enthalpy of formation



  Iron Sulfate

Usually yellow, it is a rhombic crystalline salt and soluble in water at room temperature. It is used in dyeing as a mordant, and as a coagulant for industrial wastes. It is also used in pigments, and in pickling baths for aluminum and steel. Medically it is used as an astringent and styptic.



  Basic Chromium Sulfate

Basic Chromium Sulfate is mainly used in tanning of processing leather industry, or synthesis of other chromic combination tanning agent, production of chromic compound, as well as dyestuff and pigment industries.



  Iron Sulphate

An aqueous solution of Iron sulphate is claimed to be effective at removing moss from roofs. Spraying a mixture on moss will allow the wind to simply blow off the remaining debris, however it is not recommended for use on lawns as it is as effective at removing grass.



  Tin Sulfate

Tin(II) sulfate (SnSO4) is a chemical compound. Conditions/substances to avoid are heat, aluminum and magnesium. It is a white solid that may absorb enough moisture from the air and dissolving in it, forming a solution, a property known as deliquescence.



  Zinc Sulfate

Zinc sulfate (ZnSO4) is a colorless crystalline, water-soluble chemical compound. The hydrated form, ZnSO4·7H2O, the mineral goslarite, was historically known as "white vitriol" and can be prepared by reacting zinc with aqueous sulfuric acid. It may also be prepared by adding solid zinc to a Copper II Sulfate solution. (Zn+CuSO4?ZnSO4+Cu) It is used to supply zinc in animal feeds, fertilizers, and agricultural sprays. ZnSO4·7H2O is used in making lithopone, in coagulation baths for rayon, in electrolytes for zinc plating, as a mordant in dyeing, as a preservative for skins and leather and in medicine as an astringent and emetic. An aqueous solution of zinc sulfate is claimed to be effective at removing moss from roofs. Spraying a mixture on moss will allow the wind to simply blow off the remaining debris, however it is not recommended for use on lawns as it is as effective at removin grass.



  Calcium Sulfate

Calcium sulfate is a common laboratory and industrial chemical. In the form of -anhydrite (the nearly anhydrous form), it is used as a desiccant. It is also used as a coagulant in products like tofu. [1] In the natural state, unrefined calcium sulfate is a translucent, crystalline white rock. When sold under the name Drierite®, it appears blue or pink due to impregnation with cobalt chloride, which functions as a moisture indicator. The hemihydrate (CaSO4.~0.5H2O) is better known as plaster of Paris, while the dihydrate (CaSO4.2H2O) occurs naturally as gypsum. The anhydrous form occurs naturally as ß-anhydrite. Depending on the method of calcination of calcium sulfate dihydrate, specific hemihydrates are sometimes distinguished: alpha-hemihydrate and beta-hemihydrate.[2] They appear to differ only in crystal size. Alpha-hemihydrate crystals are more prismatic than beta-hemihydrate crystals and when mixed with water form a much stronger and harder superstructure.




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