Phase formation in the MgO-B2O3-MgCl2-H2O system with a variable ratio of MgO to B2O3 at 350 degrees C under own vapor pressure

Authors
Wu, L Gao, SY Urusova, MA Valyashko, VM
Citation
L. Wu et al., Phase formation in the MgO-B2O3-MgCl2-H2O system with a variable ratio of MgO to B2O3 at 350 degrees C under own vapor pressure, RUSS J IN C, 46(2), 2001, pp. 277-280
Citations number
5
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
46
Issue
2
Year of publication
2001
Pages
277 - 280
Database
ISI
SICI code
0036-0236(200102)46:2<277:PFITMS>2.0.ZU;2-I
Abstract
An experimental study of phase equilibria in the MgO-MgCl2-B2O3-H2O system made by liquid sampling at 350 degreesC under vapor pressure shows that the reaction of MgO with boric acid for 0.16 < MgO:B2O3 < 2.0 in an MgCl2 solu tion produces a solid phase of variable composition and amorphous to X-rays . At 200 or 280 degreesC for MgO:B2O3 = 1, ascharite 2MgO .B2O3. xH(2)O cry stallizes from the same system.