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| Determination?of?Silica?by?Methylcellulose Condensation Weight Method |
| Received:June 06, 2013 Revised:July 11, 2013 |
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| DOI：doi:10.3969/j.issn.2095-1035.2013.04.015 |
| KeyWord:weighting method；silica；methylcellulose |
| Author | Institution |
| WU Xiuying |
江西省地质科学研究所 实验室，南昌 |
| ZHAO Zilong |
江西省地质科学研究所 实验室，南昌 |
| WU Yaohui |
江西省地质科学研究所 实验室，南昌 |
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| Abstract: |
| A weight method?using?methylcellulose(MC) as flocculants to condense silica was?developed to determine silica. ?The effect of?solution volume, the dosage of MC and temperature, etc.?on the condensation of silica?were studied and the optimal conditions were selected.?The effects of methylcellulose flocculants and animal glue coagulants?on the condensation of silica were?compared.?The experimental results showed that methylcellulose has a strong ability to condense silicic acid in hydrochloric acid medium and even at room temperature, MC caused lots?of silicic acid?to?condense.?In addition,?the method has a lot of advantages?such as smaller amount of iron and aluminum oxide?mingled with the precipitation,?simple operation and short analysis time. |
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