Difference between revisions of "Ferric sulfate"
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== Description == | == Description == | ||
| − | Grayish-white powder formed by adding [http://cameo.mfa.org/materials/fullrecord.asp?name=sulfuric | + | Grayish-white powder formed by adding [http://cameo.mfa.org/materials/fullrecord.asp?name=sulfuric%20acid sulfuric acid] to [http://cameo.mfa.org/materials/fullrecord.asp?name=ferric%20hydroxide ferric hydroxide]. Ferric sulfate is very [http://cameo.mfa.org/materials/fullrecord.asp?name=hygroscopic hygroscopic]. It is used as a mordant in textile dyeing and as a component in [http://cameo.mfa.org/materials/fullrecord.asp?name=iron%20gall%20ink iron gall inks]. Ferric sulfate is also used in water purification systems. Ferric sulfate occurs naturally in minerals with varying states of hydration, including lausenite [Fe2(SO4)3-6H2O], [http://cameo.mfa.org/materials/fullrecord.asp?name=kornelite kornelite] [Fe2(SO4)3-7H2O], [http://cameo.mfa.org/materials/fullrecord.asp?name=coquimbite coquimbite] [Fe2(SO4)3-9H2O], and [http://cameo.mfa.org/materials/fullrecord.asp?name=quenstedtite quenstedtite] [Fe2(SO4)3-10H2O]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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== Authority == | == Authority == | ||
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
* ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 3963 | * ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 3963 | ||
Revision as of 07:30, 24 July 2013
Description
Grayish-white powder formed by adding sulfuric acid to ferric hydroxide. Ferric sulfate is very hygroscopic. It is used as a mordant in textile dyeing and as a component in iron gall inks. Ferric sulfate is also used in water purification systems. Ferric sulfate occurs naturally in minerals with varying states of hydration, including lausenite [Fe2(SO4)3-6H2O], kornelite [Fe2(SO4)3-7H2O], coquimbite [Fe2(SO4)3-9H2O], and quenstedtite [Fe2(SO4)3-10H2O].
Synonyms and Related Terms
ferric sulphate (Br.); ferric persulfate; ferric sesquisulfate; ferric tersulfate
Other Properties
Slightly soluble in water and alcohol. Insoluble in organic solvents.
| Composition | Fe2(SO4)3 |
|---|---|
| CAS | 10028-22-5 |
| Melting Point | 480 (d) |
| Density | 2.0-2.1 |
| Molecular Weight | 399.88 |
Hazards and Safety
Non-combustible. Decomposes with light
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 3963