Extraction de la cellulose
Language: French
Published by Editions Notre Savoir Aug 2022, 2022
- Softcover
- New
Seller: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermanyBuchWeltWeit Ludwig Meier e.K.
AbeBooks seller since January 11, 2012
Condition: New
£ 53.86
Quantity: 2 available
Add to basketItem description from seller
This item is printed on demand - it takes 3-4 days longer - Neuware -Les échantillons ont été collectés dans les montagnes de Malakand, KPK, et ont été broyés en petites particules. Les échantillons ont été extraits dans l'appareil Soxhlet avec différents solvants pour éliminer les substances extractives solubles et les cires. La cellulose brute a été traitée en autoclave avec des substances alcalines pour rompre les liaisons. La plupart des substances polaires ont été éliminées par EDTA et peroxyde d'hydrogène. De plus, les échantillons ont été purifiés par une solution d'acide acétique et d'acide nitrique. La cellulose a été neutralisée par de l'eau doublement distillée jusqu'à l'obtention d'un pH neutre. La cellulose purifiée a été caractérisée par différentes techniques analytiques telles que la diffraction des rayons X (XRD) qui montre une cristallinité élevée de 73%. L'IRTF montre l'élimination de différents groupes fonctionnels de la surface. La TGA indique que la cellulose obtenue à partir de différentes sources de bois montre que la perte d'eau a lieu à 100 C, la soluble extraite à 250 C, et la lignine et l'hémicellulose à 350 C. Le MEB indique que la morphologie et la forme de la surface sont des pores très visibles. La cellulose isolée présente une haute cristallinité, une stabilité thermique et de bonnes propriétés mécaniques. 100 pp. Französisch.…
Seller Inventory # 9786205063170
- Title
- Extraction de la cellulose
- Author
- Inamullah Mian
- Publisher
- Editions Notre Savoir Aug 2022
- Publication year
- 2022
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- French
- ISBN 10
- 6205063174
- ISBN 13
- 9786205063170
- Item weight
- 167 grams
- Dimensions
- 220x150x6 mm
"Synopsis" may belong to another edition of this title.
BuchWeltWeit Ludwig Meier e.K.
Bergisch Gladbach, Germany
AbeBooks seller since January 11, 2012
Shipping rates from Germany to U.S.A.
| Item | 5 to 15 business days | 5 to 15 business days |
|---|---|---|
| First item | £ 19.75 | £ 19.75 |
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BuchWeltWeit Ludwig Meier e.K.
Germany
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