Zinc peroxide

Zn2+ [O22−]

Names
Other names

zinc dioxide
zinc bioxide

Identifiers

CAS Number

* 1314-22-3 Y

3D model (JSmol)

* Interactive image

ECHA InfoCard | 100.013.843
EC Number |

* 215-226-7

PubChem CID

* 10129902

UNII |

* 0I969DVM77 Y

CompTox Dashboard (EPA)

* DTXSID5051658

InChI

* InChI=1S/O2.Zn/c1-2;/q-2;+2

Key: IPTOGCUGCFHDSS-UHFFFAOYSA-N

SMILES

* [Zn+2].[O-][O-]

Properties

Chemical formula

| ZnO2
Molar mass | 97.408 g/mol
Appearance  | white-yellowish powder
Density | 1.57 g/cm3
Melting point | 212 °C (414 °F; 485 K) (decomposes)
Acidity (pKa)  | ~7 (3% solution)
Band gap | 3.8 eV (indirect) [1]
Structure

Crystal structure

| Cubic

Space group

| Pa3
Hazards
GHS labelling:[2]

Pictograms

Signal word

| Warning

Hazard statements

| H271, H315, H319
NFPA 704 (fire diamond)  |

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Y verify (what is YN ?)

Infobox references

Chemical compound

Zinc peroxide (ZnO2) is a chemical compound of zinc that appears as a bright yellow powder at room temperature. It was historically used as a surgical antiseptic. More recently zinc peroxide has also been used as an oxidant in explosives and pyrotechnic mixtures. Its properties have been described as a transition between ionic and covalent peroxides.[3]

## Preparation and structure

[edit]

Structure of solid zinc peroxide

Zinc peroxide can be synthesized through the reaction of zinc chloride and hydrogen peroxide.[4]

According to X-ray crystallography, the compound consists of octahedral Zn(II) centers bonded to six distinct peroxide (O22-) ligands. The overall motif is very similar to that for iron pyrite (FeS2). The structure, with intact O-O bonds, makes clear that this material is a peroxide, not a dioxide.

## Medical Use

[edit]

The treatment of burrowing ulcers in the abdominal wall with zinc peroxide was first recorded in 1933 and throughout the 1940s ZnO2 was used as a disinfectant in surgical .[5] Zinc peroxide was, however, deemed ineffective against certain bacterial strains, such as Streptococcus viridans, staphylococcus aureus, E. coli, B. proteus, and B. pyocyoneus.

## Safety

[edit]

Zinc peroxide is hazardous in case of skin contact, of eye contact, or inhalation.[6]

## References

[edit]

1. ^ A.L. Companion (1962). "The diffuse reflectance spectra of zinc oxide and zinc peroxide". Journal of Physics and Chemistry of Solids. 23 (12): 1685–1688\. Bibcode:1962JPCS...23.1685C. doi:10.1016/0022-3697(62)90205-6.
2. ^ "C&L Inventory". echa.europa.eu.
3. ^ R.D. Ayengar (1971). "ESR Studies on Zinc Peroxide and Zinc Oxide Obtained from a Decomposition of Zinc Peroxide". J. Phys. Chem. 75 (20): 3089–3092\. doi:10.1021/j100689a009.
4. ^ W. Chen (2009). "Synthesis, Thermal Stability and Properties of Zinc Peroxide Nanoparticles" (PDF). J. Phys. Chem. 113 (4): 1320–1324\. doi:10.1021/jp808714v. S2CID 53965473.
5. ^ F. Meleney (1941). "Zinc Peroxide in Surgical Infections". The American Journal of Nursing. 41 (6): 645–649\. doi:10.1097/00000446-194106000-00004. S2CID 75606177.
6. ^ "Zinc Peroxide Material Safety Sheet". Retrieved 2012-05-27.

* v
* t
* e

Zinc compounds

Zinc(I)|

| Organozinc(I) compounds|

* Zn2(C5(CH3)5)2

|

Zinc(II)|

* Zn(acac)2
* Zn(N3)2
* ZnBr2
* ZnCO3
* Zn(CN)2
* ZnCl2
* Zn(ClO3)2
* ZnCrO4
* ZnF2
* ZnH2
* ZnI2
* ZnMoO4
* Zn(NO3)2
* ZnO
* ZnO2
* Zn(ClO

* Zn(OH)2
* ZnS
* ZnSO4
* ZnSe
* ZnTe
* Zn2P2O7
* Zn3Sb2
* Zn3As2
* Zn3N2
* Zn3P2
* ZnP2
* Zn3(PO4)2

| Organozinc(II) compounds|

* Zn(CH3)2
* Zn(C2H5)2
* Zn(CH3COO)2
* Zn(CH(CH3)2)2
* Zn(C(CH3)3)2
* Zn(C6H5)2
* Zn(C3H5O3)2
* ZnICH2I
* C
24H
46ZnO

|

*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H271]: H271: May cause fire or explosion: strong oxidizer
*[H315]: H315: Causes skin irritation
*[H319]: H319: Causes serious eye irritation
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*[t]: Discuss this template
*[e]: Edit this template