Study on how to increase the quality of amber by the Tom in the oil to eliminate air and heat through the sand so that the amber darker color. For example, the study of amber from Poland, for example, found that the number of 20 is transparent to semitransparent weigh in the range of 1.24 to 10.20 carat value of specific gravity is between 1.04 to 1.05 index refraction between 1.52 to 1.54 (spot test) to glow under ultraviolet glow as white-blue wave length range. Best short-wave range does not show the glow. By Amber, 20, for example, by dividing the sample into three groups, take the time to boil all 3 hours by 1 degree centigrade 110. 2 use temperature 130° c and the temperature of 150 degrees, 3 groups used the study results. Does not match the sommutithan that when a type of amber oil boiling under atmospheric pressure of 1 atmosphere in a closed air bubbles in amber impurity will become clean at the Sun when trials appear, spangle said Amber with bubbles occur at a temperature of approximately 90° c and the temperature rising at approximately 120° c temperature. Amber light will start by that time increases. Clean the air bubbles. The experiment, heat through the sand to increase quality, dark amber. Study on the using of amber, 20, for example, the heat through the sand, packed in a steel container. By adjusting the temperature up slowly by keeping the temperature level is at 90-110 degrees Celsius from the results of the study showed that the quality of amber color of amber that is slightly darker doikrachai as well. The darker the color the skin area of amber and some, for example, found that there was no change of amber. The original color is still the same without prior to trial. It also found that with the bubbles rise within the amber sample.
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