1、 Chemical stability of drugs
The chemical stability of a drug refers to the fact that the drug hydrolysis 、 oxidation Isochemistry Degradation reaction , make drugs content (or titer ）、 color and lustre Change. Including between drugs, drugs and menstruum 、 Additive , impurities, containers External matter (air, light, moisture, etc.) chemical reaction Resulting in preparation The decomposition and deterioration of Chinese medicine. II emulsion Chemical stability of emulsion The chemical stability of emulsion refers to the stability of emulsion to added chemicals. yes Dispersant The most destructive chemicals are Water solubility Of, which can be divided into electrolyte and Non electrolyte Two types, the former is generally Inorganic salts , the latter is generally Polarity Organic compound 。 In practice, most of them refer to the stability of added electrolyte, so in a narrow sense, they refer to the stability of electrolyte. 3、 Magnetochemical stability
Magnetochemical stability refers to Permanent magnetic material Of antioxidant and Corrosion resistance Degree. 
