化学药品常因存放不当而变质、失效,甚 至酿成重大事故。为此,实验室存放化学药品 必须做到“十二防”。 1.防挥发 如浓氨水、浓硝酸、浓氢卤酸、液溴及某些 低沸点有机物(丙酮,乙醇、氯仿、甲醛等)具有 较强挥发性,应存放在阴凉、通风处,用后立即 加盖,防止药品挥发。对有机物还要远离火 Chemicals often deteriorate or fail due to improper storage and may even cause major accidents. For this reason, the laboratory must deposit “12 defenses” for chemical products. 1. Anti-volatilization such as concentrated ammonia, concentrated nitric acid, concentrated halogen acid, liquid bromine, and certain low-boiling organic compounds (acetone, ethanol, chloroform, formaldehyde, etc.) have strong volatility and should be stored in a cool, ventilated place. Immediately stamped to prevent the drug from evaporating. Keep away from the fire on organics