论文部分内容阅读
引言黄腐酸是腐植酸中分子量较低部分,能溶于酸、碱和水,亦溶于丙酮和乙醇。黄腐酸金属盐对土壤和水域的物理、化学和生物方面的性质影响很大,土壤中黄腐酸与金属离子的相互作用在改良土壤、促进植物生长、防止环境污染等方面起着重要作用。在工业上也用于钻井泥浆。研究黄腐酸金属盐热稳定性是研究它们的结构与性质的一种重要方法。关于腐植酸差热分析曾有一些报导,
Introduction Fulvic acid is humic acid in the lower molecular weight, soluble in acid, alkali and water, but also soluble in acetone and ethanol. Fulvic acid metal salts have a great influence on the physical, chemical and biological properties of soil and water. The interaction of fulvic acid with metal ions in soil plays an important role in improving soil, promoting plant growth and preventing environmental pollution . Also used industrially for drilling mud. Studying the thermal stability of fulvic acid metal salts is an important method to study their structure and properties. There have been some reports on differential thermal analysis of humic acid,