Customization: | Available |
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CAS No.: | 7705-08-0 |
Formula: | Fecl3 |
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In the largest application iron chloride is in sewage treatment and drinking water production. By forming highly dispersed networks of Fe-O-Fe containing materials, ferric chlorides serve as coagulant and flocculants. In this application, an aqueous solution of FeCl3 is treated with base to form a floc of iron(III) hydroxide (Fe(OH)3), also formulated as FeO(OH) (ferrihydrite). This floc facilitates the separation of suspended materials, clarifying the water.
Iron(III) chloride is also used to remove soluble phosphate from wastewater. Iron(III) phosphate is insoluble and thus precipitates as a solid. One potential advantage to its use in water treatment, ferric ion oxidizes (deodorizes) hydrogen sulfide.
TESTING ITEMS | SPECIFICATION | RESULT |
APPEARANCE | Greenish-Brown Crystal | Greenish-Brown Crystal |
Ferric Chloride Content (Fecl3)w/% | ≥96.0% | 98.21% |
Ferric Chloride Content (Fecl2)w/% | ≤2.0% | 0.55% |
Insoluble Content w/% | ≤2 | 0.55%MAX |
Cl | ≤0.90 | 0.05% MAX |
WATER INSOLUBLE | 0.0030% MAX | |
Gardner | No date |
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