Dicalcium ferrite

Other Reactions. Dry hydrated lime adsorbs halogen gases, eg, CI2 and F2, to form hypochlorites and fluorides. It reacts with hydrogen peroxide to form calcium peroxide, a rather unstable compound. At sintering temperatures, quicklime combines with iron to form dicalcium ferrite. 

Dibutylstibinic acid, 3 73 Dibutyltin diacetate, 24 823 Dibutyltin dilaurate, 24 823 Dicadmium triantimonide, 4 510 Dicalcium alumino monosilicate, phase in Portland cement clinker, 5 472t Dicalcium ferrite, phase in Portland cement clinker, 5 472t Dicalcium hexaborate pentahydrate,... 

Savinkina M.A., Zyryanova V.N., Logvinenko A.T., Voronin A.P. Influence of mechanical activation on the synthesis anf chemical activity of dicalcium ferrite. Izv. SO AN SSSR, ser. khim. nauk 1983 5 85-7. 

Kosova N.V., Devyatkina E.T., Avvakumov E.G., Gainutdinov 1.1., Rogachev A.Yu., Pavlyukhin Yu.T., Isupova L.A., Sadykov V.A. Mechanochemical synthesis of dicalcium ferrite with the perovskite structure. Neorg. Materialy. 1998 34 385-90. Schmidt M. And Kaczmarek W.A. Synthesis of SrFeOj 5 from mechanically activated reactants. 1. Alloys and Compounds. 1999 283 117-21. 

As the magnetic properties of dicalcium ferrite Ca2Fe2C>5 are already known, it was considered interesting to investigate the magnetic behaviour of these solid solutions and to correlate it with the vacancy order-disorder transition. Thermomagnetic analyses were carried out to determine the Neel temperatures of these phases. 

Intimate mixture of belite and dicalcium ferrite on alite lattice planes free-lime crystals with inclusions of 2CaO Fep3 Low temperature re-oxidation (Long, 1982b)... 

High-iron clinkers contain well-developed acicular or prismatic crystals of the caldtrm alirminoferrite phase, as well as dicalcium ferrite. The A/F molar ratio in the alirminoferrite phase may be as low as 0.11 (Stark et ai, 1997b). 

New] Newman, E.S., Hoffman, R., Heats of Formation of Hexacalcium Dialumino Ferrite and Dicalcium Ferrite , J. Res. Natl. Bur. Standards, 56(6), 313-318 (1956) (Experimental, Thermodyn., 14)... 

Abbattista, F., Maja, M., High Temperature Equilibria between Wustite, Iron, Lime and Dicalcium Ferrite (in Italian), Atti Accad. Set Tor, C. Sci. Fis. Mat Nat., 107, 151-163 (1973) (Experimental, 13)... 

Raj] Rajagopalan, K.V., Kalyanaraman, R., Sundaresan, M., Thermodynamic Properties of Dicalcium Ferrite by Calcium Fluoride Galvanic Cells , J. Electrochem. Soc. India, 36(3), 157-159 (1987) (Thermodyn., Exsperimental, 7)... 

The corrosion process is seen in a field near the immediate hot face (Figure 20). Here dicalcium ferrite (bright phase) and dicalcium silicate penetrate around individual MgO crystals from aggregate particles. Several smaller rounded MgO crystals are in the final phase of dissolution. Even though dicalcium silicate is a compatible phase with MgO, it will still dissolve MgO—as... 

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