ChemInform Abstract: ((CH3)3SI)14SI7O21 - NEW CYCLIC SILICIC ACID TRIMETHYLSILYL ESTER

D. HOEBBEL; K. UJSZASZY; T. REIHER; G. ENGELHARDT; A. WINKLER

doi:10.1002/chin.198539267

Preparation and constitution of the Crystalline Silicic Acid Trimethylsilyl Ester [(CH3)3Si]6Si6O15

Zeitschrift für anorganische und allgemeine Chemie ◽

10.1002/zaac.19875520927 ◽

1987 ◽

Vol 552 (9) ◽

pp. 236-240 ◽

Cited By ~ 19

Author(s):

D. Hoebbel ◽

G. Engelhardt ◽

A. Samoson ◽

K. �jsz�szy ◽

Yu. I. Smolin

Keyword(s):

Silicic Acid ◽

Trimethylsilyl Ester ◽

Crystalline Silicic Acid

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ChemInform Abstract: Preparation and Constitution of the Crystalline Silicic Acid Trimethylsilyl Ester ((CH3)3Si)6Si6O15.

ChemInform ◽

10.1002/chin.198809263 ◽

1988 ◽

Vol 19 (9) ◽

Author(s):

D. HOEBBEL ◽

G. ENGELHARDT ◽

A. SAMOSON ◽

K. UJSZASZY ◽

YU. I. SMOLIN

Keyword(s):

Silicic Acid ◽

Trimethylsilyl Ester ◽

Crystalline Silicic Acid

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Characteristics Of The Structure Formation Of Gypsum Binder Modified With Zinc Hydrosilicates

Promyshlennoe i Grazhdanskoe Stroitel stvo ◽

10.33622/0869-7019.2020.02.40-46 ◽

2020 ◽

pp. 40-46

Keyword(s):

Synergistic Effect ◽

Physicochemical Properties ◽

Structure Formation ◽

Silicic Acid ◽

Chemical Properties ◽

Crystal Formation ◽

Ability To Act ◽

Chemical Factors ◽

Sorption Characteristics

The authors' methodic for assessing the role of chemical and physic-chemical factors during the structure formation of gypsum stone is presented in the article. The methodic is also makes it possible to reveal the synergistic effect and to determine the ranges of variation of controls factors that ensure maximum values of such effect. The effect of a micro-sized modifier based on zinc hydro-silicates on the structure formation of building gypsum is analyzed and corresponding dependencies are found. It is shown that effects of influence of modifier on the properties of gypsum compositions are determined by chemical properties of modifier. Among the mentioned properties are sorption characteristics (which depend on the amount of silicic acid and its state) and physicochemical properties - the ability to act as a substrate during crystal formation. The proposed method can also be extended to other binding substances and materials. This article contributes to the understanding of the processes that occur during the structure formation of composites, which will make it possible to control the structure formation in the future, obtaining materials with a given set of properties.

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Dependence of the Dynamic Behavior of Supersaturated Silicic Acid on the Surface Area of the Solid Phase

10.1557/proc-1124-q10-07 ◽

2008 ◽

Cited By ~ 2

Author(s):

Yuichi Niibori ◽

Yasunori Kasuga ◽

Hiroshi Kokubun ◽

Kazuki Iijima ◽

Hitoshi Mimura

Keyword(s):

Surface Area ◽

Dynamic Behavior ◽

Silicic Acid ◽

Solid Phase

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The Role of Light Anhydrous Silicic Acid on Physical Stability of Troglitazone Solid Dispersion

10.26226/morressier.57d6b2b5d462b8028d88d31e ◽

2016 ◽

Author(s):

Toshiyuki Nakahashi

Keyword(s):

Silicic Acid ◽

Solid Dispersion ◽

Physical Stability ◽

Role Of Light

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FTIR, GC-MS and HPLC analysis of Baliospermum montanum (Willd.) Muell. Arg.

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11i4.3101 ◽

2020 ◽

Vol 11 (4) ◽

pp. 5059-5066

Author(s):

Sushma B K ◽

Raveesha H R

Keyword(s):

Acetic Acid ◽

Quantitative Estimation ◽

Chemical Constituents ◽

Standard Procedure ◽

Naphthalene Acetic Acid ◽

Root Extract ◽

Pentanoic Acid ◽

Trimethylsilyl Ester ◽

Isolation And Characterization ◽

Ms Analysis

The present work is aimed to determine the chemical constituents in Baliospermum montanum methanolic extracts. An in vitro regenerated procedure was developed for the induction of callus from stem explant cultured on Murashige and Skoog (MS) medium fortified with various concentration and permutations of 2, 4-dichloro phenoxy acetic acid, 1-naphthalene acetic acid, 6-benzyl amino purine and gibberellic acid. FTIR & GC-MS analysis was done according to standard procedure. The quantitative estimation of β-sitosterol was done by HPLC method. Maximum fresh and dry weight of callus was estimated in the combination of GA3 (0.5 mg/L) + NAA (2 mg/L) compared to other concentration. The FTIR analysis showed various functional compounds with different characteristic peak values in the extracts. Major bioactive constituents were recognized in the GC-MS analysis. Root extract revealed the existence of 1-hexadecanol, pentanoic acid, 2-(aminooxy)- and 1-hexacosanol. Leaf extract showed the presence of propanoic acid, 2-oxo-, trimethylsilyl ester, 9,12-octadecadienoic acid (z,z)-, trimethylsilyl ester, docosane, 1,22-dibromo- and pentatriacontane. Stem and stem derived callus exhibit the presence of 1,6,3,4-dihydro-2-deoxy-beta-d-lyxo-hexopyranose, n-hexadecanoic acid and pentanoic acid, 2-(aminooxy). The methanolic extract of leaf exhibited 0.2149 % of β-sitosterol content. There were no peaks observed in the root, stem and stem derived callus. Further studies are necessary for the isolation and characterization of bioactive compounds from B. montanum.

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