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色甘酸钠与氯化钠配伍后,开始表现为粘度增加,放置后生成沉淀。用流变学方法和紫外、红外的光谱分析对此进行了研究。当色甘酸钠浓度为2%、氯化钠浓度大于1%时,溶液粘度随氯化钠浓度几乎成正比增加;当氯化钠浓度为3%、色甘酸钠浓度大于1%时,溶液粘度也随后者浓度成正比增加。2%色甘酸钠和4%氯化钠均为牛顿流体,但其混合液为非牛顿流体。沉淀的紫外吸收光谱与色甘酸钠已知对照一致;红外光谱的主要峰位与相对强度也与已知对照相同,未见异常峰位。配伍后流变学的改变和色甘酸钠的沉出可用同离子效应加以解释。
After compatibility of sodium cromolyn and sodium chloride, it begins to show an increase in viscosity and settles after being placed. This has been studied using rheological methods and UV and IR spectral analyzes. When the concentration of cromolyn sodium is 2% and the concentration of sodium chloride is more than 1%, the viscosity of the solution increases almost linearly with the concentration of sodium chloride; when the concentration of sodium chloride is 3% and the concentration of cromolyn sodium is more than 1%, the solution viscosity It also increases in direct proportion to the latter. 2% sodium cromoglycate and 4% sodium chloride are Newtonian fluids, but the mixture is a non-Newtonian fluid. Precipitated UV absorption spectra and cromolyn sodium known control; infrared peak position and relative intensity of the known control is also the same, no abnormal peak position. Rheology changes after compatibility and cromolyn sodium precipitation can be explained by the same ion effect.