Ключевые слова:
Phthalic anhydride|Oxidation methods|Crystallization|Gravimetric analysis|Impurities|Colour tests|Temperature measurement|Ash determination|Colour|Test equipment|Plasticizers|Acidimetry|Aromatic acids|Determination of content|Dimensions|Naphthoquinone|Volumetric analysis|Naphthalene|Iron|Chemical analysis and testing|Combustion test methods|Industrial|Quinones