By implementing the principle of market flexibility and meeting the customers’ demands, on the basis of our knowledge, experience and production potential, we offer a broad range of brands adapted to particular application areas. The given information concerning FESPOL® are based on our knowledge and experience and shall not form requirements but solely determine typical pigment properties. As the conditions of use are out of our control, such information can not form a guarantee in the legal sense.
Taking into consideration specific application of FESPOL® and customers needs resulting from them, the iron(II) sulphate is offered in types:
- FESPOL® 14 – iron(II) sulphate monohydrate, neutralised;
- FESPOL® 17 – iron(II) sulphate heptahydrate, centrifuged;
- FESPOL® 20 – iron(II) sulphate heptahydrate, dried;
- FESPOL® 28 – iron(II) sulphate monohydrate, dried.
PARAMETER |
FESPOL® 14 |
FESPOL® 17 |
FESPOL® 20 |
FESPOL® 28 |
| Chemical formula | FeSO4 * 7H2O | FeSO4 * 7H2O | FeSO4 * 7H2O | FeSO4 * 7H2O |
| CaSO4 * 2H2O | ||||
| MgSO4 * H2O | ||||
| EINECS No. | 231-753-5 | 231-753-5 | 231-753-5 | 231-753-5 |
| 31-900-3 | ||||
| 31-298-2 | ||||
| Characteristics | monohydrate neutralised | heptahydrate centrifuged | heptahydrate dried | monohydrate dried |
| Form | powder | crystalline powder | crystalline powder | crystalline powder |
| Colour | beige | green | light green | light cream |
| Iron(II) content,at least, %m/m | 13,5 | 17 | 19,5 | 28,2 |
| Iron (II) content calculated per FeSO4 * 7H2O, at least, %m/m | 84,6 | 97 | ||
| Iron (II) content calculated per FeSO4 * 7H2O, at least, %m/m | 41 | 85,8 | ||
| Content of parts insoluble in water, maximum, %m/m | 0,5 | 0,5 | 0,6 | |
| Content of free acids calculated per H2SO4, maksimum % | 0,5 | 0,5 | 0,3 | |
| Loose bulk density, g/cm3 | 0,9 +/- 0,1 | 0,8 +/- 0,1 | 0,8 +/- 0,1 | 0,8 +/- 0,1 |
| Tamped apparent density, g/cm3 | 1,1 +/- 0,1 | 1,10 +/- 0,1 | 1,05 +/- 0,1 | 1,15 +/- 0,1 |
KNOWLEDGE BASE
Iron(II) sulphate as an intermediate manufactured during the production of TiO2
Generally, titanium dioxide is white, but has a slightly yellowish color due to the absorption of the visible light portion of the particles corresponding to the blue color.
Iron sulphate – respected intermediate product used in the chemical industry
For many years, ferrous sulfate is used for production coagulants and wastewater treatment. It is also used for the production of iron pigments. In the cement industry is used as the reducing agent of hexavalent [...]