Alli oxide. Jiki, thermal da kuma sinadaran Properties. Aikace-aikace.

Alli oxide - wani farin crystalline fili. Sauran sunayen da wannan abu - quicklime, alli oxide, "Killer Bee", "quicklime". Alli oxide wanda dabara Cao, kuma ta dauki samfurin da (H2O) ruwa - Ca (OH) 2 ( "pushonka" ko slaked lemun tsami) sun sami m aikace-aikace a cikin ginin da cinikayya.

Yadda za a samu alli oxide?

1. Industrial aiwatar da shiri na abu ne a thermal (a karkashin zafi) fadada daga cikin farar ƙasa (alli carbonate) :

CaCO3 (farar ƙasa) = Cao (alli oxide) + CO2 (carbon dioxide)

2. Alli oxide ƙila za a shirya ta maida martani sauki abubuwa:

2Ca (alli) + O2 (oxygen) = 2CaO (alli oxide)

3. A na uku Hanyar samar da alli oxide ne thermal bazuwar na alli hydroxide (Ca (OH) 2) da alli salts da dama oxygen-dauke acid:

2Ca (NO3) 2 (alli nitrate) = 2CaO (samu abu) + 4NO2 (nitrogen oxide) + O2 (oxygen)

Jiki Properties na alli oxide

1. Bayyanar: crystalline fili na farin launi. Rubuta daskarar sodium chloride (NaCl) a fuskar tsakiya cubic crystal raga.

2. matauni taro na 55,07 grams / mole.

3. The yawa ne 3.3 g / santimetr³.

Thermal Properties na alli oxide

1. A narkewa zafin jiki ne 2570 digiri

2. A tafasar batu na 2850 digiri

3. A matauni zafi damar (a misali yanayi) ne 42,06 J / (mol · K)

4. The enthalpy na samuwar (a karkashin tuta yanayi) na -635 KJ / mol

A sunadarai Properties na alli oxide

Alli oxide (Cao dabara) - shi ne mai asali oxide. Saboda haka, yana iya:

- narkewa a cikin ruwa (H2O) tare da saki da makamashi. Wannan suranta alli hydroxide. Wannan dauki ne kamar haka:

Cao (alli oxide) + H2O (ruwa) = Ca (OH) 2 (alli hydroxide) + 63.7 KJ / mol.

- amsa tare da acid da kuma acid oxides. A wannan samar da gishiri. Ga wasu misalai daga halayen:

Cao (alli oxide) + SO2 (sulfur dioxide) = CaSO3 (alli sulfite)

Cao (alli oxide) + 2HCl (hydrochloric acid) = CaCl2 (alli chloride) + H2O (ruwa).

A amfani da alli oxide:

1. The main kundin kafin mu abubuwa amfani a samar da silica bulo a cikin shiri. A baya can, kone lemun tsami da aka yi amfani da matsayin lemun tsami sumunti. Ya aka shirya da hadawa shi da ruwa (H2O). A sakamakon alli oxide ne haƙĩƙa, sun shige a cikin hydroxide wanda sa'an nan, ta mamaye yanayi carbon dioxide (CO2), sosai taurare, juya cikin alli carbonate (CaCO3). Duk da low cost da wannan hanyar, a yanzu ciminti lemun tsami ne kusan ba a yi amfani da gine-gine, kamar yadda yana da ikon zuwa sha da kyau tara wani ruwa.

2. Kamar yadda calcia tsaurin abu dace kamar yadda wani m da kuma samuwa abu. Fused alli oxide yana da wani jure ruwa (H2O), kyale ta yin amfani da matsayin tsaurin, inda yin amfani da tsada kayan impractical.

3. A cikin dakunan gwaje-gwaje na Principal amfani da alli oxide for bushewa abubuwa da ba su amsa tare da shi.

4. A cikin masana'antun sarrafa kayayyakin abinci da abu ne rajista a matsayin abinci ƙari karkashin E 529. nadi ake amfani da matsayin emulsifier ga halittar kama cakuda na ba-miscible da juna abubuwa - ruwa, da kuma man shafawa.

5. A cikin masana'antu alli oxide da ake amfani da su cire sulfur dioxide (SO2) daga flue gas. Used ne yawanci 15% ruwa bayani. A sakamakon dauki a wadda azama hydrated lemun tsami da kuma sulfur dioxide, gypsum samu CaCO4 da CaCO3. A cikin gwaje-gwajen da masu bincike suka nemi nuna alama a 98% otchistki hayaki na sulfur dioxide.

6. Used a musamman "samogreyuscheysya" jita-jita. Jirgin ruwa tare da karamin adadin alli oxide an zubar da tsakanin bango biyu na jirgin ruwa. Lokacin da sokin cikin kwantena a cikin ruwa dauki fara da sakin wasu zafi.