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Zinc Oxide

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  Post Date: Oct 11,2018
  Expiry Date: Oct 11,2019
  Detailed Description: Cas No. :1314-13-2 Specs:99% min
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Zinc oxide is an inorganic compound with the formula ZnO. It is a white powder that is insoluble in water. The powder is widely used as an additive into numerous materials and products including plastics, ceramics, glass, cement, rubber (e.g., car tires), lubricants,[2] paints, ointments, adhesives, sealants, pigments, foods (source of Zn nutrient), batteries, ferrites, fire retardants, first aid tapes, etc. ZnO is present in the Earth's crust as the mineral zincite, however, most ZnO used commercially is synthetic.

In materials science, ZnO is a wide-bandgap semiconductor of the II-VI semiconductor group (since zinc and oxygen belong to the 2nd and 6th groups of the periodic table, respectively). The native doping of the semiconductor (due to oxygen vacancies) is n-type. This semiconductor has several favorable properties: good transparency, high electron mobility, wide bandgap, strong room-temperature luminescence, etc. Those properties are already used in emerging applications for transparent electrodes in liquid crystal displays and in energy-saving or heat-protecting windows, and electronic applications of ZnO as thin-film transistors and light-emitting diodes are forthcoming as of 2009.



Zinc oxide

Other names[hide]Zinc white
Calamine
Identifiers
CAS number 1314-13-2 Y
PubChem 14806
ChemSpider 14122 N
EC number 215-222-5
ChEBI CHEBI:36560 N
ChEMBL CHEMBL1201128 N
RTECS number ZH4810000
InChI
[show]
InChI=1S/O.Zn N
Key: XLOMVQKBTHCTTD-UHFFFAOYSA-N N

Properties
Molecular formula ZnO
Molar mass 81.408 g/mol
Appearance White solid
Odor odorless
Density 5.606 g/cm3
Melting point 1975 °C (decomposes)[1]

Boiling point 2360 °C

Solubility in water 0.16 mg/100 mL (30 °C)
Band gap 3.3 eV (direct)
Refractive index (nD) 2.0041
Thermochemistry
Std enthalpy of
formation ΔfHo298 -348.0 kJ/mol
Standard molar
entropy So298 43.9 J·K−1mol−1
Hazards
MSDS ICSC 0208
EU Index 030-013-00-7
EU classification Dangerous for the environment (N)
R-phrases R50/53
S-phrases S60, S61
NFPA 704 120W
Flash point 1436 °C
Related compounds
Other anions Zinc sulfide
Zinc selenide
Zinc telluride
Other cations Cadmium oxide
Mercury(II) oxide

  CAS Registry Number:

1314-13-2
  Synonyms: ;C.I. 77947;C.I. Pigment White 4;zincoxideheavy;flowers of zinc;zinc white;active zinc oxide;zinkoxyd aktiv;zinci oxidum;activox;activox b;actox14;zine oxide;zine white;zincoxide;actox16;actox216;ai3-00277;akro-zincbar85;akro-zincbar90;amalox;azo22;azo-33;azo-55;azo-55tt;azo-66;azo-66tt;ZNO;oxozinc;zinc oxygen(-2) anion;
  Molecular Formula: ZnO
  Molecular Weight: 81.4084
  Molecular Structure: 1314-13-2 Zinc oxide
  Hazard Symbols:  N:Dangerous for the environment;
  Risk Codes: R50/53:;
  Safety Description: S60:;
S61:;

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  Contact: Harry Du
  Tel: 0086-411-86596755 39210844 130
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  Email: harry.du@sinoright.net
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