Calcium sulfate. description

In Modern imanba Chemistry muhiimad weyn cusbada soocidda iyo sifooyinka xubno dhexgalka iyo xeryahooda oo dhan suurto gal. Waxaa jira walxaha in, iyo kuwo kale oo mashquulin meel gaar ah. xeryahooda noocan oo kale ah gaar ahaan waa in loo gudbiyo calcium sulfate. walax Formula CaSO4.

kayd weyn ee xarunta this ee qolof ah u ogolaan in ay la isticmaalo qalab dihin ee diyaarinta qalabka kala duwan. The qalabka keentay si guul loo isticmaali karaa in dhismaha, dawo iyo meelaha kale.

kayd macdanta laga helay isagoo halabuurka ah CaSO4 2 H2O In xaaladaha dabiiciga ah. Calcium sulfate waxaa sidoo kale laga helay badda (qiyaastii 1800 000 tan oo halkii mitir cubic) iyo biyo nadiif ah.

CaSO4 anhydride waa cufnaanta ah budada cad ee 2.90-2.99 grams halkii centimitir oo saddex jibaaran. Xarunta firfircoon uga nuuga qoyaan ka soo hawada. Sababta oo ah hantida this, iyo calcium sulfate loo isticmaalaa sida wakiilka qalajiyo.

At heerkul kun iyo afar boqol iyo konton dhalaalayaa degrees maalka iyo decomposes. milmi The oo ah walaxda waa wanaajiyey in joogitaanka HCL, HNO3, NaCl, MgCl2. Calcium sulfate sameynayso la acid sulfuric waa la dhimay marka la carbon sintering.

In biyo wada jir ah ula MgSO4 iyo MgCl2, CaSO4 rigidity waxay siinaysaa joogto ah. Chemical dheecaan sareyso meletariga waa u suurtoobaan reagents ah. Dhimista qalbi engegnaantiinna aawadeed biyaha ku salaysan hordhaca ah ee walxaha ku hodanaynta anions ay.

Sareyso meletariga oo biyo ah ayaa sidoo kale fuliyay by sarrifka ra'iyi. Habkani wuxuu ku salaysan yahay awoodda exchangers ra'iyi dardaro iyo dabiiciga ah - xeryahooda-kelli sare - xag isweydaarsiga ka mid ahaa in ay ka kooban, on udhigo xaadirka ah in xal. Sida exchangers ra'iyi inta badan u dhaqmaan aluminosilicates (Na2 [Al2Si2O8] ∙ nH2O, tusaale ahaan).

Hydrate la kooban 2CaSO4 H2O - alabastar (gypsum la gubo) - isticmaalaa in soo saaridda qalabka cementitious. Waxyaabahani waxay wakiil ah xeryahooda pulverulent, kuwaas oo markii la noocyada biyaha caag ah isku qasan marka hore, ka dibna isku xiraan galay miisaanka jirka adag. habka Diyaarinta waa la fuliyay in calcination gypsum alabastar sarkhaansan yihiin heerkulka ka mid ah boqol iyo konton ilaa boqol iyo toddobaatan degrees. hantida waxaa loo isticmaalaa in soo saaridda ee darfahoodii xijaab iyo looxyadiisa, waxyaabaha wasakhahaasi, iyo sidoo kale in fulinta shaqada plastering.

heerkulka Calcination sarkhaansan yihiin in ka badan laba boqol darajo keenaysaa in formation of foomka L. of ammooniya calcium sulfate, heerkulka ka weyn shan boqol darajo - foomka beelaya. Arintaan lumiyo awooda in lifaaq biyaha sidaas daraaddeed ma loo isticmaali karaa sida gal ah.

gypsum Dabiiciga ah loo isticmaali karaa sida wax bilaabo in diyaarinta cement iyo sulfuric acid by habka isku daro ah.

sulphate calcium Dabiiciga ah sidoo kale waxaa loo isticmaali karaa sida desiccant ah ee falanqaynta xeryahooda organic. Xarunta ammooniya awoodo si uu u nuugo qoyaan 6.6% ee miisaanka guud. Calcium sulfate waxaa sidoo kale loo isticmaalaa in soo saaridda qalabka qalabada.