Dodecacalcium hepta-aluminateDodecacalcium hepta-aluminate (12CaO·7Al2O3, Ca12Al14O33 or C12A7) is an inorganic solid that occurs rarely in nature as the mineral mayenite. It is an important phase in calcium aluminate cements and is an intermediate in the manufacture of Portland cement. Read from the Chembox of the Wikipedia article Dodecacalcium hepta-aluminate, revision 1349863773.

Property

Value

Formula

Al14Ca12O33, 1386.65 g/mol

Melting point

1400 °C

Density

2.68 g/cm³

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