阴离子表面活性剂 水中溶解度的测定

[中文适用范围]： 初步确定已知浓度的溶液在加热时从浑浊变为澄清以及在冷却时从澄清变为浑浊的温度。 将两种相同浓度的溶液（一种较冷且浑浊，另一种较温暖且澄清）置于浴中，控制在初步确定的温度，并记录它们在温度平衡时的外观。 在不同的温度下重复该测试，直至澄清溶液保持澄清且浑浊溶液保持浑浊。 [外文原描述]： Preliminary the temperatures are determined at which solutions of known concentration change on heating from being cloudy to clear and on cooling from being clear to cloudy. Two solutions of the same concentration, one being colder and cloudy and the other being warmer and clear, are placed in a bath, controlled at a preliminary determined temperature and their appearance at temperature equilibrium is noted. The test is repeated at varying temperatures until the clear solution remains clear and cloudy solution cloudy.