Zinc oxide. Properties na Ngwa

Zinc oxide (aha ọzọ - zinc oxide) - bụ ihe amphoteric oxide, crystalline colorless powder yellowing n'elu nwayọọ nwayọọ kpo oku na sublimating na 1800 degrees. Unyi anaghị agbasa na mmiri. The ọxịdashọn nke zinc na ogige - 2. The chemical usoro ZnO. Nke a ihe onwunwe bụ ihe dị mkpa maka umu mmadu. Ọ nwere a na achị mmetụta ahụ mmadụ.

Zinc oxide: Physical Njirimara

1. The thermal conductivity bụ 54 W / (m * K).
2. Ọ bụ a okporo ọkụ na a gbalaga obosara nke 3.3 eV.

Chemical Njirimara nke zinc oxide

1. Ọ mkpatụ na asịd. Na nke a na-etolite na nnu.
2. Mkpatụ na alkalis etolite tetra-, tri- na geksagidroksitsinkatov.
3. Nke a ihe onwunwe e etisasịwo ke okenye amonia ngwọta. Nke a Nleta a mgbagwoju Ammoniate.
4. Mgbe alloying na alkali oxides na zinc oxide forms a zincate.
5. Mgbe alloying na sịlịkọn oxide na boron oxide, zinc silicates, na iche-iche yiri enyo n'olu.

Ka kwadebere zinc oxide (ZnO)

Zinc oxide pụrụ inweta na ọtụtụ ụzọ:

• Natural ịnweta zincite;
• site na-ere zinc Alụlụụ (Zn) na oxygen (O) - a na-akpọ "French usoro";
• site thermal decomposition nke ndị na-esonụ ogige: hydroxide Zn (OH) 2, zinc acetate Zn (CH3COO) 2 nitrate Zn (NO3), carbonate ZnCO3;
• n'okpuru oxidative firing ZnS (zinc sulfide);
• mgbe hydrothermal njikọ;
• site mmịpụta nke sludges na dusts smelters. Of otu dị mkpa bụ ndị osisi na-ipuiche scrap metal, nwere a ịrịba nkezi nke kpaliri ígwè.

zinc oxide

Zinc oxide na-eji na roba ụlọ ọrụ, akwụkwọ, ụfọdụ plastik, roba ngwongwo, wuru akpụkpọ anụ, electric Gịnị, iko, egbuke, ntecha (tanning creams, mma agwọ ọrịa) na-esi ísì ụtọ. Ọ na-eji dị ka ihe activator maka vulcanization nke dị iche iche rubbers mkpali njikọ organic okwu - methanol, chloroprene rubbers na vulcanizing gị n'ụlọnga, a ink na dịanyā na mmepụta. Na mbụ zinc oxide mkpa ka a na-acha ọcha pigmenti na akọwa na enamels, ma ugbu a ọ na-kpamkpam chụpụrụ TiO2 (titanium dioxide bụ ndị na-abụghị na-egbu egbu). Nile zinc oxide wee na agba, taya na mmanụ ejegharịrị ọrụ.

Nile na zinc oxide na nkà mmụta ọgwụ na ahịa ọgwụ (ọgwụ ọjọọ "Zinc Ude", "Sudocrem", "Tapawa Lassara"). Ọ na-eji dị ka akụkụ nke antiseptik ude, n'ụdị ntụ. Na omume ọ na-eji ike a bactericidal uko ikpuchi n'ụlọ ọgwụ, onwe-ihicha ebupụta. Na zinc oxide emepụta toothpastes na cements maka mgbochi dentistry. Mbụ na ọ na-eji na ihe ulo oru ọnụ ọgụgụ maka photocatalytic ọcha nke mmiri.

Ọzọkwa n'okpuru echiche bụ a umi na-eji na imewe nke akọwa na iko dabeere na mmiri mmiri iko, dị ka onye na mpaghara a nchara na remover na dị ka ihe mmako na nri anụmanụ. Ke adianade do, ntụ ntụ nke umi bụ a ekwe ihe onwunwe dị ka a na-arụ ọrụ na-ajụ maka powder lasers. Na ndabere nke zinc oxide kere The LEDs-acha anụnụ anụnụ na agba. Ụfọdụ nanostructures (e.g., na mkpa film) dabere na nke a umi nwere ike ji mee ka ndu ma ọ bụ gas-chebaara sensọ.

Gịnị bụ mmetụta na mmadụ zinc oxide?

Nke a chemical compound nwere ala toxicity. Na ikuku nke na-arụ ọrụ ogige MPC ga-adị ọzọ karịa 6 miligram kwa cubic mita. Ájá nke zinc oxide pụrụ kpụrụ n'elu-agba ọla ngwaahịa. Ex ọrụ na zinc oxide kwesịrị umi anaghị tinye anya. Drugs na zinc oxide na-atụ aro na dị ka na-eduzi site dọkịta.