... , formaldehyde, acetic acid, hot ethylene glycol, glycerol, pyridine; slightly soluble in water, ethanol; do not dissolve in ether, benzene and carbon tetrachloride ... powderPurity (%) ≥ 99Moisture (%)0.1PH value 7.59.5Ash (%) ≤ 0.03Formaldehyde water-soluble test: turbidity (kaolin degrees, degrees) ≤ 20Color (Ha Zen) units (PT ...