Qhov txawv ntawm Lub Teeb thiab Hnyav Magnesium Carbonate

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Qhov sib txawv tseem ceeb ntawm lub teeb thiab hnyav magnesium carbonate yog tias lub teeb magnesium carbonate (hydromagnesite) muaj 4 dej molecules whereas hnyav magnesium carbonate (Dypingite) muaj 5 dej molecules.

Lub npe magnesium carbonate yog hais txog cov tshuaj sib xyaw uas muaj cov tshuaj formula MgCO3. Tab sis, thaum peb hu lub teeb thiab hnyav magnesium carbonate, nws hais txog magnesium hydroxy carbonates uas muaj cov lej sib txawv ntawm cov dej molecules txuam nrog lawv.

Lub Teeb Magnesium Carbonate yog dab tsi?

Lub teeb magnesium carbonate yog hydromagnesite, uas muaj cov tshuaj formula Mg ₅(CO₃) _{4 (OH)}2_·4H2_{O. Peb hu nws "lub teeb" vim nws muaj 4 dej molecules. Hauv qhov sib piv, cov ntawv "hnyav" muaj 5 cov dej molecules. Peb tuaj yeem txheeb xyuas qhov sib xyaw no ua cov khoom siv carbonate, thiab nws muaj monoclinic crystal system. Tsis tas li ntawd, cov molar loj ntawm ib chav tsev ntawm cov tshuaj no yog 467.64 g / mol. Nws tsis muaj xim lossis dawb, thiab xim streak yog dawb.}

Daim duab 01: Hydromagnesite

Ntxiv mus, nws yog pob tshab rau translucent. Cov tshuaj no muaj qhov sib sib zog nqus heev. Nws yog insoluble hauv dej. Peb tuaj yeem nrhiav tau cov khoom siv no hauv cov khoom siv huab cua ntawm magnesium-muaj cov zaub mov; serpentine, brucite, dolomite thiab marble. Peb tuaj yeem siv cov khoom sib xyaw no ua cov nplaim hluav taws kub / hluav taws kub retardant additive rau polymers nrog rau kev yos hav zoov. Ntxiv mus, nws decomposes endothermically; Qhov no decomposition tsim dej, carbon dioxide thiab magnesium oxide residue. Qhov thermal decomposition no tshwm sim raws li peb theem txheej txheem.

Havy Magnesium Carbonate yog dab tsi?

Havy magnesium carbonate yog Dypingite uas muaj cov tshuaj formula Mg ₅(CO₃) _{4 (OH)}2_·5H2_{O. Nws muaj 5 dej molecules. Yog li, peb hu nws "hnyav". Nws yog cov khoom siv carbonate uas muaj monoclinic crystal system. Cov molar loj ntawm cov tshuaj no yog 485.65 g / mol. Nws muaj xim dawb, thiab nws cov xim streak yog dawb mus rau grey. Tsis tas li ntawd, nws yog cov khoom siv semi-trasparent. Cov tshuaj no muaj txiaj ntsig zoo li cov pa luam yeeb, tshuaj tua kab mob thiab cov khoom muab tub lim. Qhov no kuj yog insoluble hauv dej, tab sis nws yog soluble hauv dilute acids.}

Qhov txawv ntawm Lub Teeb thiab Hnyav Magnesium Carbonate yog dab tsi?

Lub teeb magnesium carbonate yog hydromagnesite. Cov tshuaj formula ntawm lub teeb magnesium carbonate yog Mg ₅(CO₃)₄(OH) 2_·4H2_{O. Nws muaj 4 dej molecules. Ntxiv mus, nws muaj ib tug dawb streak xim. Tsis tas li ntawd, nws muaj cov pob tshab rau cov xwm txheej.}

hnyav magnesium carbonate yog Dypingite. Nws muaj 5 dej molecules. Cov tshuaj formula ntawm hnyav magnesium carbonate yog Mg₅(CO₃)₄(OH) 2_·5H2_{O. Tsis tas li ntawd, nws muaj xim dawb rau grey streak xim. Nyob rau hauv tas li ntawd, nws muaj ib tug semi-pob tshab xwm. Qhov no yog qhov sib txawv tseem ceeb ntawm lub teeb thiab hnyav magnesium carbonate.}

Summary – Lub teeb vs Hnyav Magnesium Carbonate

Lub teeb thiab hnyav magnesium carbonates tsis yog carbonates tab sis yog magnesium hydroxy carbonates. Qhov sib txawv ntawm lub teeb thiab hnyav magnesium carbonate yog tias lub teeb magnesium carbonate muaj 4 dej molecules whereas hnyav magnesium carbonate muaj 5 dej molecules.