The Effect of Reaction Time on the Viscosity and Density of Tetraethyl Orthosilicate from Silica of Rice Husk Ash
TEOS is a material widely used in various industrial fields. One source of silica (SiO2) is rice husk ash. The purpose of this study was to determine the effect of reaction time on viscosity and density in making TEOS from rice husk silica. Silica resulting from the purification of rice husk a...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
INTI International University
2023
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/1879/ http://eprints.intimal.edu.my/1879/1/joit2023_19r.pdf http://eprints.intimal.edu.my/1879/2/327 |
| _version_ | 1848766860266307584 |
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| author | Dwi Rasy, Mujiyanti Hayatun, Nisa Kholifatu, Rosyidah Dahlena, Ariyani Abdullah, . Wayan Koko, Suryawan Ani, Purwanti Wisnu, Prayogo |
| author_facet | Dwi Rasy, Mujiyanti Hayatun, Nisa Kholifatu, Rosyidah Dahlena, Ariyani Abdullah, . Wayan Koko, Suryawan Ani, Purwanti Wisnu, Prayogo |
| author_sort | Dwi Rasy, Mujiyanti |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | TEOS is a material widely used in various industrial fields. One source of silica
(SiO2) is rice husk ash. The purpose of this study was to determine the effect of reaction
time on viscosity and density in making TEOS from rice husk silica. Silica resulting from
the purification of rice husk ash is used in the TEOS manufacturing process by examining
the variation of reaction time. One mole of ethanol (58.4 ml) and 0.25 mole (7 gr) of silica
powder were added to a 250 ml round bottom flask, followed by the addition of 1 gr of
CuO/Al2O3 catalyst. The mixture was then refluxed for 30, 35, 40, 45, and 50 hours with
effective stirring at a temperature of 90°C. The FTIR characterization results show that there
are three main functional groups: the -OH, Si-O, and C-O groups in the five TEOS synthesis
results. Wave numbers of the –OH functional groups obtained ranged from 3349 cm-1
to
3315 cm-1
; Si-O functional groups ranged from 813 cm-1
to 606 cm-1
, and C-O functional
groups ranged from 1105 cm-1
to 1040 cm-1
. Reaction time has a significant effect on the
viscosity and density of the resulting TEOS. The findings indicate that reaction time does
not significantly affect the viscosity of TEOS solutions within the investigated time frame.
The viscosity values obtained fall within the acceptable range for commercial TEOS,
indicating successful production of TEOS solutions with suitable flow characteristics.
However, the density values obtained do not meet the requirements for commercial TEOS,
highlighting the need for further optimization. |
| first_indexed | 2025-11-14T11:57:51Z |
| format | Article |
| id | intimal-1879 |
| institution | INTI International University |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T11:57:51Z |
| publishDate | 2023 |
| publisher | INTI International University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-18792025-07-21T08:58:15Z http://eprints.intimal.edu.my/1879/ The Effect of Reaction Time on the Viscosity and Density of Tetraethyl Orthosilicate from Silica of Rice Husk Ash Dwi Rasy, Mujiyanti Hayatun, Nisa Kholifatu, Rosyidah Dahlena, Ariyani Abdullah, . Wayan Koko, Suryawan Ani, Purwanti Wisnu, Prayogo T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology TEOS is a material widely used in various industrial fields. One source of silica (SiO2) is rice husk ash. The purpose of this study was to determine the effect of reaction time on viscosity and density in making TEOS from rice husk silica. Silica resulting from the purification of rice husk ash is used in the TEOS manufacturing process by examining the variation of reaction time. One mole of ethanol (58.4 ml) and 0.25 mole (7 gr) of silica powder were added to a 250 ml round bottom flask, followed by the addition of 1 gr of CuO/Al2O3 catalyst. The mixture was then refluxed for 30, 35, 40, 45, and 50 hours with effective stirring at a temperature of 90°C. The FTIR characterization results show that there are three main functional groups: the -OH, Si-O, and C-O groups in the five TEOS synthesis results. Wave numbers of the –OH functional groups obtained ranged from 3349 cm-1 to 3315 cm-1 ; Si-O functional groups ranged from 813 cm-1 to 606 cm-1 , and C-O functional groups ranged from 1105 cm-1 to 1040 cm-1 . Reaction time has a significant effect on the viscosity and density of the resulting TEOS. The findings indicate that reaction time does not significantly affect the viscosity of TEOS solutions within the investigated time frame. The viscosity values obtained fall within the acceptable range for commercial TEOS, indicating successful production of TEOS solutions with suitable flow characteristics. However, the density values obtained do not meet the requirements for commercial TEOS, highlighting the need for further optimization. INTI International University 2023-12 Article PeerReviewed text en cc_by_4 http://eprints.intimal.edu.my/1879/1/joit2023_19r.pdf text en cc_by_4 http://eprints.intimal.edu.my/1879/2/327 Dwi Rasy, Mujiyanti and Hayatun, Nisa and Kholifatu, Rosyidah and Dahlena, Ariyani and Abdullah, . and Wayan Koko, Suryawan and Ani, Purwanti and Wisnu, Prayogo (2023) The Effect of Reaction Time on the Viscosity and Density of Tetraethyl Orthosilicate from Silica of Rice Husk Ash. Journal of Innovation and Technology, 2023 (19). pp. 1-10. ISSN 2805-5179 http://ipublishing.intimal.edu.my/joint.html |
| spellingShingle | T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Dwi Rasy, Mujiyanti Hayatun, Nisa Kholifatu, Rosyidah Dahlena, Ariyani Abdullah, . Wayan Koko, Suryawan Ani, Purwanti Wisnu, Prayogo The Effect of Reaction Time on the Viscosity and Density of Tetraethyl Orthosilicate from Silica of Rice Husk Ash |
| title | The Effect of Reaction Time on the Viscosity and Density of Tetraethyl
Orthosilicate from Silica of Rice Husk Ash |
| title_full | The Effect of Reaction Time on the Viscosity and Density of Tetraethyl
Orthosilicate from Silica of Rice Husk Ash |
| title_fullStr | The Effect of Reaction Time on the Viscosity and Density of Tetraethyl
Orthosilicate from Silica of Rice Husk Ash |
| title_full_unstemmed | The Effect of Reaction Time on the Viscosity and Density of Tetraethyl
Orthosilicate from Silica of Rice Husk Ash |
| title_short | The Effect of Reaction Time on the Viscosity and Density of Tetraethyl
Orthosilicate from Silica of Rice Husk Ash |
| title_sort | effect of reaction time on the viscosity and density of tetraethyl
orthosilicate from silica of rice husk ash |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology |
| url | http://eprints.intimal.edu.my/1879/ http://eprints.intimal.edu.my/1879/ http://eprints.intimal.edu.my/1879/1/joit2023_19r.pdf http://eprints.intimal.edu.my/1879/2/327 |