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RESEARCH REPORTS FROM NATIONAL ACADEMY OF SCIENCE PROVIDE NEW INSIGHTS INTO SILICIC ACID
Technology Business Journal
November 9, 2010
According to recent research from Yerevan, Armenia, "This paper
reports the results of experiments on ultra fine layered silicates
Na-fluorotaeniolite and Na-fluorotetrasilicic mica synthesis in the
melts prepared from reaction blends based on synthetic silicate
raw material, namely synthetic magnesium silicate dihydrate
(MSDH, MgO.SiO2.2H(2)O). The MSDH-Na2SiF6-LiF, MSDH-Na2SiF6-MgF2
and MSDH-Na2SiF6-NaF blends, whose compositions are close to the
stoichiometry of the Na-fluorotaeniolite (NaMg2Li[Si4O10]F-2) and
Na-fluorotetrasilicic mica (NaMg2.5[Si4O10]F-2) were studied in the
temperature range 1080-1225 degrees C. Magnesium silicate dihydrate,
the phase composition of synthesis products and layered silicates
(Na-fluorotaeniolite and Na-fluorotetrasilicic mica) were examined
using the crystal optical, X-ray diffraction at room and high
temperatures, differential thermal and chemical analyses."
"It has been shown that studied blends possessed a high reactivity,
owing to which the layered silicates were synthesized at lower
temperatures (similar to 180-300 degrees C) and the duration of
the synthesis was shortened severalfold. The maximal yield of the
Na-fluorotetrasilicic mica was observed in the reaction blend with
the Na2SiF6 and NaF as halogen-containing compounds," wrote L.A.
Khachatryan and colleagues, National Academy of Science.
The researchers concluded: "The specific effects of MSDH on the
physicochemical processes proceeded during heat treatment of the
reaction blends were described."
Khachatryan and colleagues published their study in Composite
Interfaces (Ultra Fine Layered Silicate Synthesis from Synthetic
Silicate Raw Material. Composite Interfaces, 2010;17(5-7):595-601).
For additional information, contact N.B. Yeritsyan, National Academy
Science Armenia, Institute General & Inorgan Chemical, II Argutyan
Str 10, Yerevan 375051, Armenia.
Publisher contact information for the journal Composite Interfaces
is: VSP BV, Brill Academic Publishers, PO Box 9000, 2300 PA Leiden,
Netherlands.
From: A. Papazian
Technology Business Journal
November 9, 2010
According to recent research from Yerevan, Armenia, "This paper
reports the results of experiments on ultra fine layered silicates
Na-fluorotaeniolite and Na-fluorotetrasilicic mica synthesis in the
melts prepared from reaction blends based on synthetic silicate
raw material, namely synthetic magnesium silicate dihydrate
(MSDH, MgO.SiO2.2H(2)O). The MSDH-Na2SiF6-LiF, MSDH-Na2SiF6-MgF2
and MSDH-Na2SiF6-NaF blends, whose compositions are close to the
stoichiometry of the Na-fluorotaeniolite (NaMg2Li[Si4O10]F-2) and
Na-fluorotetrasilicic mica (NaMg2.5[Si4O10]F-2) were studied in the
temperature range 1080-1225 degrees C. Magnesium silicate dihydrate,
the phase composition of synthesis products and layered silicates
(Na-fluorotaeniolite and Na-fluorotetrasilicic mica) were examined
using the crystal optical, X-ray diffraction at room and high
temperatures, differential thermal and chemical analyses."
"It has been shown that studied blends possessed a high reactivity,
owing to which the layered silicates were synthesized at lower
temperatures (similar to 180-300 degrees C) and the duration of
the synthesis was shortened severalfold. The maximal yield of the
Na-fluorotetrasilicic mica was observed in the reaction blend with
the Na2SiF6 and NaF as halogen-containing compounds," wrote L.A.
Khachatryan and colleagues, National Academy of Science.
The researchers concluded: "The specific effects of MSDH on the
physicochemical processes proceeded during heat treatment of the
reaction blends were described."
Khachatryan and colleagues published their study in Composite
Interfaces (Ultra Fine Layered Silicate Synthesis from Synthetic
Silicate Raw Material. Composite Interfaces, 2010;17(5-7):595-601).
For additional information, contact N.B. Yeritsyan, National Academy
Science Armenia, Institute General & Inorgan Chemical, II Argutyan
Str 10, Yerevan 375051, Armenia.
Publisher contact information for the journal Composite Interfaces
is: VSP BV, Brill Academic Publishers, PO Box 9000, 2300 PA Leiden,
Netherlands.
From: A. Papazian