Thermal stability of xanthan preparations
β Scribed by C. Kierulf; I.W. Sutherland
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 446 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0144-8617
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π SIMILAR VOLUMES
The viscosity stability of xanthan solutions is crucial to petroleum recovery processes. The effects of oxygen concentration, pH, and temperature on viscosity during aging up to 6 months were studied. T h e structure modifications of the xanthan (substituent contents, weight-average molecular weight
Lead hydroxyapatites (PbHAp) have been prepared from H3PO4 and Pb(NO3)2 β’ 5PbO (1), the latter of which was obtained through dehydration of basic lead nitrates such as 2Pb(NO3)2 β’ 5Pb(OH)2 (2) and Pb(NO3)2 β’ 5Pb(OH)2 (3). The amount of 2 with respect to 3, as well as the quantity of an unidentified