Magnesium oxide e: Properties, itokisa, kopo

oxide e magnesium e atisa ho bitsoa ho feta feela ho chesa magnesia kapa oxide e magnesium. boitsebiso boo e bobebe le o motle bonaletsang tšoeu phofo. Ka tlhaho, oxide e magnesium le hlaha e le periclase matsoai. Indasteri ea lijo e le ntho e tsejoang e le ho tseloe lijo tlas'a khoutu E530.

Properties tsa oxide e magnesium

Lik'hemik'hale Mokgwa wa ho Nahana tsa ntho e: MgO. komponeng ena e na le hoo e ka bang ha ho khathollang ka ammonia le asiti ea hang-hang qhibilihang ka har'a metsing, solubility lona ka 30 ° C ke dikgerama 0,0086 feela / 100 di ml, le joala e le ha ho qhala. Molare boima ba MgO - 40,3044 g, / Mol. Ho 20 ° C le segokanyipalo sa tsa lona ke 3,58 g, / cm³, a phehile mocheso - 3600 ° C, qhibiliha - 2852 ° C. Melkokristallichesky magnesium oxide e ke lik'hemik'hale ba mafolofolo haholo. Ho ea nang le bokhoni ea 'me le monya carbon dioxide e ya ho theha e carbonate lekanang:

• MgO + CO ₂ = MgCO _3;

le hoja butle, empa a sa ntse a leka ka metsi, eaba ba etsa insoluble fokolang botlaaseng :

• H ₂ O + MgO = MG (OH) _2;

e a ileng a itšoara ka acid e ea:

• 2HCl + MgO = MgCl ₂ + H ₂ O

The calcined magnesium oxide e lahleheloang reactivity lona. E lokela ho a phaella ka hore gigroskopechen ena phofo.

Ba lokisetsa ho ea oxide e magnesium

Ho indasteri e, motsoako ona o ile oa lokisetsa hantle ke a betsa. thepa e tala sebediswa liminerale tse kang dolomite (MgCO3.CaCO3) kapa magnesia (MgCO3). Ho phaella moo, magnesia e phethahatsoa sebelisa calcination bishofit (MgCl _2: x 6H ₂ O) ka mouoane ea metsi, calcining MG (OH) 2 le tse ling tse sa tsitsang ho mocheso MG metsoako. Tlas'a maemo a laboratori MgO e ka ka lokisoa ka ho ba itšoara joang ea metsoako e constituent:

• 2Mg + O ₂ = 2MgO;

kapa ke li bole kapele 'mogote wa letsoai itseng kapa hydroxide:

• MgCO ₃ = MgO + CO _2.

Ho itšetlehile ka mokhoa tlhahiso ea oxide e magnesium tloaelehile ho khetholla mefuta e 'meli e ka sehloohong ea metsoako: leseli le magnesia boima. Pele ke phofo colorless, e ke ho le bonolo ka ho lekaneng ho kena 'itsoara joang ka tse fapa-fapaneng le acid hlapolla, oo ka oona MG matsoai a thehoa. Ea bobeli e na le lithollo tse khōlō tsa tlhaho kapa maiketsetso periclase le hlaheletseng metsi ho hanyetsa le ho feta inert.

oxide e magnesium

Ho indasteri e, motsoako ona e sebediswa bakeng sa ho etsa thepa samente, refractory, ka filler ka rabara 'me bakeng sa matsoai kalafo oli. Ultralight magnesium oxide e e sebediswa e le e ntle haholo khorofo, e neng e hloekisa bokaholimo. Ka ho khetheha, le sebelisitsoe ka indastering ea elektronike. Ho phaella moo, magnesia ho pharaletseng sebelisoa ka meriana. Moo MgO e sebelisoa ka tlōlo ea gastric acidity boemo ba etsahala ka lebaka la ho e feteletseng ea acid e hydrochloric. oxide e magnesium hape nka bakeng sa neutralizing dintho a sebetsang a ka phoso tšoasoa mpeng. Ho indasteri e lijo MgO e sebelisoa e le lijo tsa koketso (E530) code, eo thibela clumping le caking. Magnesia le boetse le sebelisoa ka gymnastics. Mona, phofo e sebelisoa ho matsohong a baatlelete ba ho ikopanya le thepa ho ikoetlisa e ne e le e ka tšeptjoang haholoanyane. Eketsa hore oxide e magnesium ke reflector feletseng. Ponahatso coefficient tsa ntho e le atolositse spectral sehlopha o lekana ho be le bonngoe 'me ka hona ho ka hantle ka sebelisoa e le ho bolela tšoeu.