Zinkoxid Produkt Beschreibung

Zinc oxide  Struktur
1314-13-2
  • CAS-Nr.1314-13-2
  • Bezeichnung:Zinkoxid
  • Englisch Name:Zinc oxide
  • Synonyma:Zinkoxid;Zinkwei?;Zinkmonoxid;C.I. Pigment White 4
    ZnO;emar;ozlo;xx78;azo22;ozide;Rubox;xx203;xx601;Zinox
  • CBNumber:CB3853034
  • Summenformel:OZn
  • Molgewicht:81.39
  • MOL-Datei:1314-13-2.mol
Zinkoxid physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :1975 °C
  • Siedepunkt: :1949.9°C (estimate)
  • Dichte :5.6
  • Brechungsindex :2.008~2.029
  • Flammpunkt: :27℃
  • storage temp.  :Store at +5°C to +30°C.
  • Löslichkeit :0.0016g/l insoluble
  • Aggregatzustand :nanopowder
  • Farbe :White to pale yellow
  • Wichte :5.61
  • PH :7 (50g/l, H2O, 20℃)(slurry)
  • Wasserlöslichkeit :1.6 mg/L (29 ºC)
  • Merck  :14,10147
  • Stabilität: :Stable. Incompatible with magnesium, strong acids.
  • InChIKey :XLOMVQKBTHCTTD-UHFFFAOYSA-N
  • CAS Datenbank :1314-13-2(CAS DataBase Reference)
  • NIST chemische Informationen :Zinc oxide(1314-13-2)
  • EPA chemische Informationen :Zinc oxide (1314-13-2)
Sicherheit

Zinc oxide Chemische Eigenschaften,Einsatz,Produktion Methoden

  • ERSCHEINUNGSBILD WEISSES PULVER.
  • CHEMISCHE GEFAHREN Reagiert sehr heftig mit Aluminium- und Magnesiumpulver, und mit Chlorkautschuk beim Erhitzen. Feuer- und Explosionsgefahr.
  • ARBEITSPLATZGRENZWERTE TLV: 2 mg/m?(als TWA); (Alveolengängige Fraktion); 10 mg/m?(als STEL); (Alveolengängige Fraktion); (ACGIH 2005).
    MAK: (als Rauch) 1 mg/m?(Alveolengängige Fraktion); Spitzenbegrenzung: überschreitungsfaktor I(1); (DFG 2005).
  • AUFNAHMEWEGE Aufnahme in den Körper durch Inhalation des Aerosols und durch Verschlucken.
  • INHALATIONSGEFAHREN Eine gesundheitsschädliche Partikelkonzentration in der Luft kann schnell erreicht werden, besonders für Zinkoxidrauch-Partikel.
  • WIRKUNGEN BEI KURZZEITEXPOSITION WIRKUNGEN BEI KURZZEITEXPOSITION:
    Inhalation des Rauches kann Metalldampffieber verursachen. Die Substanz (als Rauch) reizt die Atemwege. Die Auswirkungen treten u.U. verzögert ein (s.Anm.).
  • LECKAGE Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.
  • R-Sätze Betriebsanweisung: R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
    R20:Gesundheitsschädlich beim Einatmen.
  • S-Sätze Betriebsanweisung: S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
    S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
    S7/9:Behälter dicht geschlossen an einem gut gelüfteten Ort aufbewahren.
  • Chemische Eigenschaften Zinc oxide is an amorphous, white or yellowish-white powder. Odorless.
  • Chemische Eigenschaften Zinc oxide is yellowish and powder like.
  • Physikalische Eigenschaften White or yellowish-white powder; odorless; bitter taste; hexagonal crystal; refractive index 2.008; density 5.606 g/cm3; melts at 1,975°C; practically insoluble in water, 1.6 mg/L at about 30°C; soluble in dilute acids, ammonia solu 990 tion, and alkali hydroxides.
  • Verwenden Zinc oxide is added to paints as a pigment and mold inhibitor and is known as zinc white when it is used as an oil paint by artists. It is used for cosmetics (ointment to protect nose and lips from ultraviolet sunlight), as a seed treatment, and as a dietary supplement.
  • Verwenden Zinc oxide, ZnO, is a reactive white pigment prepared by vaporizing metallic zinc at a temperature of about 900°C in the presence of oxygen. As a pigment, ZnO is basic in nature and can react with certain types of acidic paint resins resulting in the formation of a brittle film on drying. Formation of such films leads to premature failure of paint. For this reason as well as because of its low RI,ZnO cannot compete for the hiding power of TiO2.
    Consequently, ZnO is rarely used as the sole pigment in modern coatings, although it finds some use in admixture with other pigments. ZnO is used in exterior house paints as a fungicide and in some can linings as a sulfide scavenger.
  • Verwenden Antibiotic
  • Verwenden Preparation of zinc standard solutions.
  • Verwenden zinc oxide has been used to protect, soothe, and heal the skin. Zinc oxide provides an excellent barrier to the sun and other irritants. It is somewhat astringent, anti-septic, and anti-bacterial. When used in sunscreen preparations, it provides both uVA and uVB protection, and can contribute to and/or increase SPF. At the appropriate particle size, zinc oxide is transparent in the visible light spectrum but opaque in the uVC ranges, thereby avoiding a whitening effect when incorporated into sunscreen preparations. Zinc oxide is included on the FDA’s list of approved sunscreen chemicals. It demonstrates an impressive synergistic effect when combined with organic sunscreens. Zinc oxide is also used when a white color is desired for a product. It is obtained from zinc ore, a commonly found mineral, and is relatively non-allergenic.
  • synthetische Zinc oxide is obtained as an intermediate in recovering zinc from minerals (See Zinc, Recovery). The oxide is prepared by vaporizing zinc metal and oxidation of the zinc vapors with preheated air (French process). The oxide can be produced by other processes. Another method involves roasting franklinite and other ores with coal and then oxidizing the product in air.
  • Definition zinc oxide: A powder, white whencold and yellow when hot, ZnO; r.d.5.606; m.p. 1975°C. It occurs naturallyas a reddish orange ore zincite,and can also be made by oxidizinghot zinc in air. It is amphoteric,forming zincates with bases. It isused as a pigment (Chinese white) and a mild antiseptic in zinc ointments.An archaic name is philosopher’swool.
  • Definition Zincite is a mineral form of zincoxide, ZnO.
  • Allgemeine Beschreibung Crude zinc oxide is a yellow-gray granular solid with no odor. Zinc oxide has a specific gravity of 4.4. Zinc oxide is insoluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Prolonged inhalation of the dust may result in metal fume fever with symptoms of chills, fever, muscular pain, nausea and vomiting.
  • Air & Water Reaktionen Slowly decomposed(hydrolyzed) in water. Insoluble in water.
  • Reaktivität anzeigen ZINC OXIDE is insoluble in water. What little solubility Zinc oxide has yields aqueous solutions that are neutral in pH. Intimate mixtures of zinc oxide and chlorinated rubber with or without hydrocarbons or chlorinated solvent react violently, even explosively upon heating [Chem. Trade J., 1962, 151, 672]. Slow addition of zinc oxide to cover the surface of linseed oil varnish caused generation of heat and ignition, [Chem. Trade J., 1933, 92, 278].
  • Hazard Exposure to zinc oxide fumes from welding and other operations can cause metal fume fever. Its symptoms are chills, fever, cough, and tightness in the chest.
  • Health Hazard Exposures to zinc oxide metal fume cause several health disorders. The symptoms of toxicity include, but are not limited to, fever, chills, muscle ache, nausea, fever, dry throat, cough; lassitude (weakness, exhaustion), metallic taste, headache, blurred vision, low back pain, vomiting, malaise (vague feeling of discomfort), chest tightness, dyspnea (breathing diffi culty) and decreased pulmonary function. The overexposure to zinc oxide fumes in workplaces produce symptoms known as metal fume fever or “zinc shakes”; an acute, selflimiting condition. Chronic exposure to zinc oxide may cause respiratory tract irritation with nasopharyngitis and laryngitis.
  • Brandgefahr Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot.
  • Pharmazeutische Anwendungen The pharmaceutical and cosmetic industries use ZnO in powders and ointments because of its bactericidal properties. It is also used to form dental cements by its reaction with eugenol.
    Zinc oxide is used as a raw material for many products: stearates, phosphates, chromates, bromates, organic dithiophosphates, and ferrites (ZnO, MnO, Fe2O3). It is used as a source of zinc in animal feeds and in electrogalvanization . It is also used for desulfurizing gases.
  • Landwirtschaftliche Anwendung Zinc oxide (ZnO) is a zinc fertilizer. It is a white powder when cold and yellow when hot, and contains approximately 78% zinc.
    Zinc oxide occurs in nature as a reddish-orange colored zincite, and is made by oxidizing hot zinc in air. It is an amphoteric oxide forming zincates, by reacting with bases and zinc salts with acids. It is used as a white pigment and as a mild antiseptic in ointments. An archaic name of zinc oxide is philosopher's wool.
    Foliar applications with zinc oxide reduce the foliage damage. Zinc oxide, applied by way of seed coatings, root dips or tree injections, corrects the zinc deficiency. Dipping potato seeds in 2% zinc oxide suspension overcomes zinc deficiency satisfactorily. A similar method is used for pre-plant dipping of the roots of rice seedlings.
  • Industrielle Verwendung Zinc oxide has many uses. By far the most important is in the rubber industry. Almost half the world’s ZnO is used as an activator for vulcanization accelerators in natural and synthetic rubber. The reactivity of the ZnO is a function of its specific surface area, but is also influenced by the presence of impurities such as lead and sulfates. The ZnO also ensures good durability of the vulcanized rubber, and increases its thermal conductivity. The ZnO content is usually 2–5%.
    In paints and coatings, zinc oxide is no longer the principal white pigment, although its superb white color is used by artists. It is used as an additive in exterior paints for wood preservation. It is also utilized in antifouling and anticorrosion paints [2.82]. It improves film formation, durability, and resistance to mildew (having a synergistic effect with other fungicides) because it reacts with acidic products of oxidation and can absorb UV radiation.
    In the field of glass, ceramics, and enamels, ZnO is used for its ability to reduce thermal expansion, to lower the melting point, and to increase chemical resistance. It can also be used to modify gloss or to improve opacity.
  • Materials Uses The highest purity material is calcined with additives such as Bi2O3 and used in the manufacture of varistors. The photoconducting properties of ZnO are used in photoreproduction processes. Doping with alumina causes a reduction in electrical resistance; hence, it can be used in the coatings on the master papers for offset reproduction.
    Zinc oxide is used as a catalyst in organic syntheses (e.g., of methanol), often in conjunction with other oxides. It is present in some adhesive compositions.
  • Sicherheitsprofil Moderately toxic to humans by ingestion. Poison experimentally by intraperitoneal route. An experimental teratogen. Other experimental reproductive effects. Human systemic effects by inhalation of freshly formed fumes: metal fume fever with chills, fever, tightness of chest, cough, dyspnea, and other pulmonary changes. Mutation data reported. A s h and eye irritant. Has exploded when mixed with chlorinated rubber. Violent reaction with Mg, linseed oil. When heated to decomposition it emits toxic fumes of ZnO. See also ZINC COMPOUNDS.
  • mögliche Exposition Zinc oxide is primarily used as a white pigment in rubber formulations and as a vulcanizing aid. It is also used as an antiinflammatory agent; in photo copying; paints, chemicals, ceramics, lacquers, and varnishes; as a filler for plastic; in cosmetics; pharmaceuticals, and calamine lotion. Exposure may occur in the manufacture and use of zinc oxide and products, or through its formation as a fume when zinc or its alloys are heated. HC may have been used as a Choking/Pulmonary Agent.
  • Versand/Shipping UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
  • Inkompatibilitäten Incompatible with linseed oil, magnesium. Contact with chlorinated rubber (@ 215C) may cause a violent reaction. Slowly decomposed by water.
Zinc oxide Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Zinkoxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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