Finding discount glassware in market getting easier than few years ago, different companies offering clear and color discount glassware, in this section, we provide you some information about; how to make colored glass.
The physics and chemistry involved in the creation of a specific glass color can be extremely complex. As formulas have evolved over thousands of years, so have the raw materials used to make glass. Thus, a particular element that produces a color in soda-lime glass may impart an entirely different color in potassium-based glass. The amount of a colorant used can also affect the outcome of one glass color, while another influence is the amount of impurities within the raw sand. The temperature of the batch of glass prior to and during its manufacture will affect the atomic structure within the glass melt and therefore its color. For example, glass containing an element such as iron could transform from green to brown simply due to its batch temperature.
The challenge of maintaining consistent colors from one batch to the next was at times easier with some colors than with others. For instance, one of the more resilient colorants is cobalt for making deep blue. But glassmakers would still guard specific color recipes they developed with great care. To maintain reliable colors, these craftsmen would carefully supervise raw materials, the stability of batch temperatures, and even the post-production cooling process in the annealing oven.
Obviously, the difficulty in controlling a color contributed to its rarity, but additional reason for some colors being scarcer than others include consumer demand and the high costs of certain metal oxides used as colorants. There was also a great challenge to removing undesired color from a batch of glass. That process required the addition of an element that produces a counterbalancing color effect, or adding chemically oxidizing or reducing agents within the glass melt. Clear soda-lime glass was seldom made prior to the late 1800s.
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