Our products have many industrial uses. FESPOL^® – The iron(II) sulphate is mainly used in the cement industry for reduction of hexavalent chromium. It is used also in production of iron coagulants for water purification and wastewaters treatment. In agriculture it is used as a component of fertilizing mixtures. It can be used in manufacture of iron pigments and to wood finishing.

Cement, composed mainly of limestone, clay and sand is used primarily for the production of mortar and concrete. Unfortunately, naturally occurring limestone and clay often contain too high levels of chromium (VI) which may cause allergic skin reactions.

Taking into consideration the health of workers employed in the manufacture of cement and its customers in the European Union level content of Cr (VI) in cement was limited initially by the European Parliament Directive 2003/53 / EC, and now by Regulation 1907/2006 / EC concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). According to Annex XVII of this Regulation cement should contain a reducing agent, which is mixed with water, that reduces chromium (VI) to below 2 ppm (2 mg / kg) and maintains that level for at least 60 days from the date of manufacture of cement.

These requirements are implemented by adding carefully selected reducers during the grinding of clinker or in the final stages of cement production.

The most accessible, effective and at the same time a relatively low-cost reducers is iron(II) sulphate also produced by the Grupa Azoty Zakłady Chemiczne „Police” S.A. and sold under the brand name FESPOL^®. A wide range of grades allows to choose the most appropriate and effective regulator to the specifics of the cement. Our products are characterized by efficiency, ease of storage and dispensing.

APPLICATION	FESPOL 14	FESPOL 17	FESPOL 20	FESPOL 28
Flocculation of suspended matters in wastewaters(sewage)			*
Chromium reduction in sewage			x
Phosphate elimination in sewage			x
Sulphide precipitation in sewage			*
Decolouration of sewage			x
Sludge thickening			x
Treatment of potable water			x
Treatment of industrial water			x
Reduction of chromium in cement	x	*	x	x
Manufacturing of iron pigments		x
Fertiliser additive		x	x	x
Prevention of plant chlorosis		x	x	x
Peat additive		x	x	x

x – highly recommended
* – recommended