Teas charts

FIGURE 3.3 Hansen solubility plot (three-dimensional) for cellulose acetate (Hansen, 2007), with Hansen partial solubility parameters, 8, 8p and 8h, in MPa. See Figure A3.28 for the same data plotted in a ternary Teas chart. 

On the simplest level. Teas charts (see Appendix 3), derived from manufacturers or conservators data, can provide a visual summary of the solubility of the polymer of great use when the properties of a number of polymers or solvents are being compared. However, they should be used with caution and only for narrowly defined comparisons. The concepts and data used in these charts are known to be incomplete and compress multidimensional properties on to a flat sheet of paper. There is much overlapping of the solvents and non-solvents on the charts. The conclusions must be checked when dealing with unfamiUar materials. The Teas fractional parameters used in this book are derived from recent Hansen solubility parameters (Hansen, 2007). 

FIGURE A3.1 Major classes of solvents and their position on the Teas chart. 

Chart 8.1.S Shikimates (skeletons) widespread on land (5max=57, av=43 5//ftnax=0.48, av=0.39). Tannins lignans epigallocathechin gallate (Asian black tea. Camellia sinensis L.) Kuntze, Theaceae, Ang. MI) procyanidins and prodelphinidins (widespread in plants) soluble hydrolyzable tannins gallotannin (myrobalan. East Indian trees, Terminalia spp., oak, Quercus spp., Lithocarpus spp., and sumac, Rhus spp.) ellagitannin (Myrtaceae). 

Rosemary Gladstar s Herbal Remedies for Children s Health. Learn how popular herbs have been used in different cultures to treat children s illnesses such as colic, fever, stoma distress, and the common cold. Includes dozens of recipes for everything from herbal salves to tinctures to teas, plus a dosage chart and storage instructions. 80 pages. Paperback. ISBN 1-58017-153-2. 

A large number of data were accumulated for different solvents and polymers (see Ta-bles 4.1.1,4.1.2). A variation of the Hansen method is the approach of Teas. He showed for some polymer-solvent systems that it was possible to use fractional cohesive energy densities plotted on a triangular chart to represent solubility limits ... 

Figure 30.6a shows a fiagram chart of 12 samples of tea aqueous extract injected in triplicate and five Fe + standards setting the calibration curve. The samples were diluted... 

Fig. 4.8 Navajo Dye Chart ( Ella Myers). Toh-Atin Gallery, Durango, Colorado. Key row 1 scarlet bugler, afterbath from black dye, Brigham tea, brown onion skin, penstemon, sage brush row 2 juniper mistletoe, red onion skin, Indian paint brush, rubber plant row 3 alder bark, Navajo tea, wild black berries, rabbit brush row 4 snake weed, purple larkspur, wild onion, Gambel oak bark row 5 sumac, pinon pitch and ocher, yellow sweet clover, blue flowered lupine, globemallow, goldenrod, grey chamiso...

Data on the total vapor pressure of amine solutions as a function of temperature and amine concentration are necessary for the design of stripping columns and reboilers. Such data are presented in Figure 2-56 for MEA solutions, 2-57 for DEA solutions, 2-58 for DGA solutions, 2-59 for TEA solutions, 2-60 for DIPA solutions, and 2-61 for MDEA solutions. These charts can be used to determine the boiling point of an amine solution as a function of concentration and pressure however, they do not show the composition of the vapor phase. Vapor-liquid equilibrium composition charts for MEA and DGA solutions at selected pressures are given in Chapter 3. Additional data on amine solution vapor-liquid equilibrium can usually be obtained from the manufacturers. 

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