Stair ocsaíd since

2020/08/10

Ocsaíd sincetá réimse leathan úsáidí ann. Tá feidhmchláir aige i rubar, criadóireacht, leictreonaic, plaistigh, bratuithe, gloine agus leigheas. Toisc go bhfuil sé de fheidhm aige gathanna ultraivialait a sciath, is féidir é a úsáid freisin mar ghrianscéithe samhraidh. Conas a d’fhorbair ocsaíd since le feidhmeanna cumhachtacha den sórt sin?

1. Stair na forbartha sa leigheas:

l Taifeadadh druga sa leabhar míochaine ársa Indiach "Chakara Benji", agus ansin aithníodh an druga marocsaíd sinceis féidir a úsáid chun galair agus gortuithe súl a chóireáil.

l Luaigh dochtúir Gréagach sa chéad haois AD úsáidocsaíd sincemar ointment.

l In 1025, Avicenna's "Drug Formula" mentioned that ocsaíd since can treat various skin diseases, including skin cancer. Until now, ocsaíd since ní úsáidtear a thuilleadh chun ailse craicinn a chóireáil, ach úsáidtear go forleathan é fós i ngalar craicinn coitianta eile.

l  The research team led by Professor Moriori Nakamura of Shimane University synthesized ocsaíd since particles with a diameter of about 10 nanometers, and made them with fluorescent properties through special technology. In November 2008, experiments were conducted on mice, and the luminous images of particles in the experimental mice were successfully captured. The discovery can be applied to cutting-edge medical fields.

2. Stair na forbartha sa tionscal.

l In 200 BC, the Romans learned to make brass by reacting copper with zinc ore containing ocsaíd since. Ocsaíd sincedéantar é a thiontú ina ghal since san fhoirnéis seafta agus téann sé isteach sa mhúchán chun imoibriú.

l Beginning in the 12th century, Indians began to smelt zinc and zinc ore in primitive ways. Ocsaíd since smelting technology was introduced to China in the 17th century.

l I 1743, bhunaigh Bristol, Sasana, an chéad ghléasra bruithnithe since san Eoraip.

l Ocsaíd since was first used as a paint in 1834. It became a watercolor paint for the first time, but it was difficult to dissolve in oil. However, the new ocsaíd since production process soon solved this problem.

l In 1845, zinc white oil paint was mass-produced in Paris, and it was popular in Europe in 1850;

l  In the second half of the 20th century, zinc barium oxide was used in the rubber industry;

l In the 1970s, ocsaíd sinceBaineadh úsáid as mar bhreiseán le haghaidh cóippháipéir, ach cuireadh deireadh leis an gcleachtas seo sa 21ú haois.