Dieisentris(sulfat) Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36/37:Reizt die Augen und die Atmungsorgane.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Beschreibung
§184.1307(a) Ferric sulfate (iron(HI)sulfate, Fe2(S04)3), a yellow substance that may be prepared by oxidizing iron(II)sulfate or by treating ferric oxide or ferric hydroxide with sulfuric acid.
Chemische Eigenschaften
Ferric Sulfate is a grayish-white powder or
yellow lumpy crystals.
Physikalische Eigenschaften
The anhydrous salt constitutes grayish-white rhombic crystals; hygroscopic; density 3.10 g/cm
3; slightly soluble in cold water; decomposes in hot water. The nonahydrate is a yellow hexagonal crystalline substance; refractive index 1.54; density 2.10 g/cm
3; hardness 2.5 Mohs; decomposes at 400°C; very soluble in water.
Verwenden
Ferric Sulfate is a nutrient and dietary supplement that is a source
of iron.
Definition
Ferrous sulfate,also known as ferrisulpas, green copperas, green vitriol, iron sulfate, and melanterite, is composed of blue green monoclinic crystals. It is soluble in water and is used as a mordant for dyeing wool in the textile industry. Ferrous sulfate is also used as a disinfectant and in the manufacture of ink.
synthetische
Iron(III) sulfate may be prepared by oxidation of iron(II) sulfate by hydrogen peroxide, nitric acid or any other suitable oxidizing agent. The reaction is carried out in sulfuric acid. Balanced molecular equations for the reactions with hydrogen peroxide and nitric acid are as follows:
2FeSO
4 + H
2SO
4 + H
2O
2 → Fe
2(SO
4)
3 + 2H
2O
6FeSO
4 + 3H
2SO
4 + 2HNO
3 → 3Fe
2(SO
4)
3 + 2NO + 4H
2O
Even in the absence of an oxidizing agent, concentrated sulfuric acid alone can1 convert iron(II) sulfate to iron(III) sulfate: 2FeSO
4 + 2H
2SO
4→ Fe
2(SO
4)
3 + SO
2 + 2H
2O It also may be prepared by treating iron(III) oxide with sulfuric acid:
Fe
2O
3 + 3H
2SO
4 → Fe
2(SO
4)
3 + 3H
2O
.
Allgemeine Beschreibung
A yellow crystalline solid or a grayish-white powder. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Ferric sulfate is used for water purification, and as a soil conditioner.
Air & Water Reaktionen
Soluble in water. Hygroscopic in air. Forms acidic aqueous solutions.
Reaktivität anzeigen
Ferric sulfate is acidic. Corrosive to copper, copper alloys, mild steel, and galvanized steel [USCG, 1999].
Health Hazard
Inhalation of dust irritates nose and throat. Ingestion causes irritation of mouth and stomach. Dust irritates eyes and can irritate skin on prolonged contact.
Landwirtschaftliche Anwendung
Herbicide, Molluscicide, Agricultural product
constituent: Ferric sulfate is used on forage alfalfa, almonds,
nurseries and structural pest control. This material is also
used in pigments, textile dyeing, water treatment, and
metal pickling
Handelsname
GREENMASTER AUTUMN®;
MAXICROP MOSS KILLER®; VITAX MICRO
GRAN®; VITAX TURF TONIC®
Sicherheitsprofil
A poison by
intraperitoneal route. Mutation data
reported. When heated to decomposition it emits toxic fumes of SOx and Fe-. See also
SULFATES and other ferric salts.
mögliche Exposition
This material is used in pigments,
textile dyeing, water treatment; and metal pickling.
Versand/Shipping
UN3077 Environmentally hazardous substances,
solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous haz ardous material, Technical Name Required.
läuterung methode
Dissolve the sulfate in the minimum volume of dilute aqueousH2SO4 and allow it to evaporate at room temperature until yellowish-white crystals start to form. Do not concentrate by boiling off the H2O as basic salts will be formed. Various hydrates are formed; the common ones are the dodeca and nona hydrates which are violet in colour. The anhydrous salt is colourless and is very hygroscopic, but it dissolves in H2O slowly unless ferrous sulfate is added. [Gmelin’s, Iron (8th edn) pp 439-462 1932.]
Inkompatibilitäten
Hydrolyzed slowly in aqueous solution.
Incompatible with magnesium, aluminum. Corrosive to
copper and its alloys, mild and galvanized steel. Light
sensitive.
Waste disposal
Treat with soda ash or dilute
NaOH. Separate any precipitate and landfill. Flush solution
to sewer.
Dieisentris(sulfat) Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
