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Liquid products coloring

A compromise between coloration and economics in commercial ionic liquid production is therefore necessary. Since chromatographic decoloration steps are known and relatively easy to perform (see Section 2.2.3), we would not expect there to be a market for a colorless ionic liquid, if the same substance can be made in a slightly colored state, but at a much lower price. [Pg.24]

Physically stable liquid products are supposed to retain their color, viscosity, clarity, taste, and odor throughout the shelf life however, the limits of the specifications for... [Pg.52]

During liquid makeup production, color pigments (i.e., solid having identical particle size) are added to the product via a mixer. In the pilot plant, this mixer runs at 6,700 rpm and has a diameter head of 0.035 m. Full-scale production is geometrically similar and has a mixer head diameter of 0.12 m. Determine the speed of the full-scale production mixer head. What additional information is required for the motor to drive this mixer Assume that power curves are available for this mixer design, and the scale-up basis is constant power/unit volume. [Pg.588]

The appearance of clear liquid products depends primarily on the color and clarity of the solution. Dyes should be used that are completely soluble in the particular solvent and at the required concentration. Many times dyes that correspond to the flavor of the product (for example, red for cherry or yellow for lemon) will be chosen. [Pg.666]

All soluble dyes contain reactive sites, and some may be incompatible with drug substances in the formulation. The anionic colors can also react with com-poimds containing polyvalent cations (such as calcium, magnesium, or aluminum) and precipitate. Certain dyes, such as FD C blue 2 and FD C red 3, exhibit such poor stability in aqueous solutions that they should never be used for coloring aqueous liquid products. [Pg.667]

When formulating liquid products with dyes, the lowest possible concentration of dye needed to give the desired color should be used, because higher concentrations can result in a dull color. Most liquid products have dye concentrations of <0.001%. The actual concentration depends on how the product will normally be viewed and the depth of color required. [Pg.667]

Both batch and continuous runs were performed. Batch runs were performed mainly to check the validity of the predicted equilibrium conversions. A batch conversion of 90% was obtained after 11 hours of operation when 1-hexene isomerization was performed at a supercritical temperature of 265 0 (1.07 T ) and subcritical pressures varying between 250 and 150 psig (0.54-0.33 P ). The liquid product collected in the phase separator bore no color and contained virtually no oligomers. Combined conversions to 2-hexenes and 3-hexenes, are about 69% and 21% respectively. These values compare well with the simulated equilibrium values of 72.4% and 24.3% respectively (see Figure 6). [Pg.313]

The recovered broth has to be formulated into a final product to comply with requirements appropriate to its final application. In formulation, whether for a solid or liquid product, different issues are addressed. Maintaining the activity of enzyme from the time of manufacture to the time of application through storage is one of the main factors tested during formulation. Other stability issues such as microbial stability and physical stability are important as well. Depending on the final application of the enzyme, the physical appearance can be customized (e.g., colored). A specific example of formulation is immobilization (see also Chapter 2). [Pg.67]


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See also in sourсe #XX -- [ Pg.666 ]




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