Girazi is an amorphous inorganic non-metallic material, inowanzo gadzirwa nemhando dzakasiyana-siyana inorganic minerals (sengejecha requartz, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) sechinhu chikuru mbishi, uye shoma shoma yezvinhu zvekubatsira mbishi zvinowedzerwa.ye.
Zvikamu zvaro zvikuru isilicon dioxide uye mamwe maokisi.[1] Mushonga wemakemikari wegirazi rinowanzoita Na2SiO3, CaSiO3, SiO2 kana Na2O·CaO · 6SiO2, nezvimwewo. Chinhu chikuru chinonzi silicate kaviri munyu, inova amorphous yakasimba ine chimiro chisina kujairika.
Inoshandiswa zvakanyanya muzvivako kuparadzanisa mhepo uye kutumira chiedza.Musanganiswa.Kune zvakare girazi rine ruvara rinosanganiswa nemamwe masimbi okisidi kana munyu kuratidza ruvara, uye girazi rinodziya rinogadzirwa nemaitiro enyama kana makemikari.Dzimwe nguva mamwe mapurasitiki akajeka (akadai se polymethyl methacrylate) anonziwo plexiglass.
Kwemazana emakore, vanhu vave vachitenda kuti girazi rakasvibirira uye harigoni kuchinjwa.Gare gare, zvakazoonekwa kuti ruvara rwegirinhi rwakabva muchidimbu chesimbi muzvigadzirwa, uye masanganiswa esimbi yakasvibirira akaita kuti girazi rioneke rakasvibirira.Mushure mekuwedzera manganese dioxide, iyo yekutanga divalent iron inoshanduka kuita trivalent iron uye inoita yero, nepo tetravalent manganese inoderedzwa kuita trivalent manganese uye inoita yepepuru.Optically, yero uye yepepuru inogona kudyidzana kune imwe nhanho, uye kana yakasanganiswa kuti ive chena mwenje, girazi harizokanda ruvara.Nekudaro, mushure memakore akati wandei, iyo trivalent manganese icharamba ichive oxidized nemhepo, uye yero ichawedzera zvishoma nezvishoma, saka girazi remahwindo redzimba dzekare richave rakatsvuka.
Girazi rakazara is amorphous solid ine chimiro chisina kujairika (kubva pakuona microscopic, girazi zvakare imvura).Mamorekuru ayo haana kurongeka kwenguva refu munzvimbo yakaita sekristaro, asi ane hurongwa hupfupi hwakafanana nezvinwiwa.zvinoteverana.Girazi rinochengetedza chimiro chakaita sechakasimba, uye hariyerere negiravhiti semvura.
Nguva yekutumira: Sep-14-2021