Zinc sulfate heptahydrate Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
K?RNCHEN ODER KRISTALLINES PULVER.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Inhalation des Aerosols und durch Verschlucken.
INHALATIONSGEFAHREN
Verdampfung bei 20°C vernachl?ssigbar; eine gesundheitssch?dliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz reizt die Augen, die Haut und die Atemwege.
LECKAGE
Verschüttetes Material in Beh?ltern sammeln. Reste sorgf?ltig sammeln. An sicheren Ort bringen. Pers?nliche Schutzausrüstung: Atemschutzger?t, P1-Filter für inerte Partikel. NICHT in die Umwelt gelangen lassen.
R-S?tze Betriebsanweisung:
R22:Gesundheitssch?dlich beim Verschlucken.
R41:Gefahr ernster Augensch?den.
R50/53:Sehr giftig für Wasserorganismen, kann in Gew?ssern l?ngerfristig sch?dliche Wirkungen haben.
R36/38:Reizt die Augen und die Haut.
S-S?tze Betriebsanweisung:
S22:Staub nicht einatmen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S39:Schutzbrille/Gesichtsschutz tragen.
S46:Bei Verschlucken sofort ?rztlichen Rat einholen und Verpackung oder Etikett vorzeigen.
S60:Dieses Produkt und sein Beh?lter sind als gef?hrlicher Abfall zu entsorgen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S25:Berührung mit den Augen vermeiden.
Chemische Eigenschaften
Colorless crystals, small needles, or
granular, crystalline powder; without odor; astringent,
metallic taste. Efflorescent in air. Solutions
acid to litmus. Loses
7H2O at 280C. Soluble in water and glycerol; insoluble
in alcohol.
Verwenden
Zinc sulfate heptahydrate is widely used as a coagulant in the production of rayon. It finds an application in the manufacturing of calico printing, wood preservation and lithopone. It is the source of zinc which is supplied in animal feeds, fertilizers and agricultural sprays. It is utilized as electrolytes for zinc plating and surface treating agents. It is also used as a mordant in dyeing, preservative for skin and leather and in medicine as an astringent and emetic.
Definition
ChEBI: A hydrate that is the heptahydrate form of zinc sulfate.
Application
Zinc sulfate heptahydrate is a widely used zinc salt raw material. In agriculture, it primarily serves as a zinc fertilizer to replenish zinc levels in crops, alleviate physiological disorders caused by zinc deficiency—such as "little leaf" and rosette conditions—and enhance crop vigor and yield. Industrially, it is utilized in electroplating, wood preservation, mineral processing (as a flocculant), and textile dyeing (as a mordant), as well as in the production of other zinc salts. In the feed industry, it acts as an additive to supply zinc to livestock and poultry, thereby promoting growth and development; it also finds limited application in sectors such as pharmaceuticals and water treatment.
Allgemeine Beschreibung
Zinc sulfate heptahydrate has various industrial applications. It is widely employed as an electrolyte for zinc electroplating and for the storage of solar energy in various solar appliances. Its crystals exhibit diamagnetism.
Landwirtschaftliche Anwendung
Zinc sulphate heptahydrate (ZnSO
47H
2O), also called
white vitriol, is the most common form of zinc sulphate.
It forms zinc sulphate monohydrate above 70°C and
anhydrous salt at 280°C, and is used as a mordant and a
styptic (to check bleeding).
Industrielle Verwendung
Zinc sulfate (ZnSO
4·7H
2O) is a white powder, very soluble in water (i.e. 37%
at 20 °C). Zinc sulfate is primarily used in base-metal flotation as a depressant
for sphalerite. Zinc sulfate has been used to depress talc in by-product molybdenum
circuit.
Sicherheitsprofil
Human poison by an
unspecified route. Poison experimentally by
subcutaneous, intravenous, and
intraperitoneal routes. Moderately toxic by
ingestion. Experimental reproductive
effects. When heated to decomposition it
emits toxic fumes of SOx and ZnO. See also
ZINC SULFATE.
l?uterung methode
Crystallise it from aqueous EtOH or dilute H2SO4 below 39o when it forms the heptahydrate, and between 39o and 70o it forms the hexahydrate, and above 70o the monohydrate is stable. The anhydrous salt is obtained from the hydrates by heating at 280o or lower temperatures in a current of dry air. It decomposes to ZnO and SO2 at 767o. The solubility of the heptahydrate in H2O is 5.88% at 0o, 61.92% at 30o, 66.61% at 35o and 70.05% at 39o.
Zinc sulfate heptahydrate Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
