"Organic impurities are compounds composed of carbon and hydrogen, such as alcohols, ketones, aldehydes, fatty acids, hydrocarbons, adenines, pigments, impurities, etc."
-Deshangchemical
Impurities in chemical reagents include organic impurities, inorganic impurities, moisture, and metal ions.
1. Organic impurities
Organic impurities are compounds composed of carbon and hydrogen, such as alcohols, ketones, aldehydes, fatty acids, hydrocarbons, adenines, pigments, impurities, etc. During the manufacturing and storage of chemical reagents, these organic compounds may enter the reagents. Organic impurities may affect the purity and stability of the reagent, resulting in adverse reactions during use.
2. inorganic impurities
Inorganic impurities are compounds without carbon-carbon bonds, such as chlorine, sulfur, iron, lead, chromium, copper, zinc, etc. These inorganic impurities usually originate from the raw materials used to make the reagents or from contamination during the preparation of the reagents. Inorganic impurities may cause instability and inaccuracy of reagent properties.
3. Moisture
Water is one of the most common impurities in chemical reagents. Moisture usually results from improper handling of the raw materials or preparations used to make the reagents. Excessive water content may affect the properties, stability and purity of the reagent.
4. Metal ions
Metal ions are metal atoms with positive charge, such as iron, copper, lead, nickel, zinc, aluminum, etc. These metal ions may enter the reagent during the manufacturing or storage of chemical reagents. The presence of metal ions may affect the stability and reactivity of the reagent.