108-78-1|MELANIN_ChemVia, Custom Chemical Service Platform

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Freight number	Package	Original price	Present price	Order quantity	Stock	describe
RB04010107-500g	500g	￥97.00	￥97.00		3	deliver goods within 1-2 days
RB04010107-2.5kg	2.5kg	￥399.00	￥399.00		3	deliver goods within 1-2 days

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Properties
Properties	【外观性质】白色、单斜晶体。【溶解性】不溶于水，微溶于乙二醇、甘油、乙醇，不溶于乙醚、苯、四氯化碳。【熔点】354 °C【密度】1.573【特性】108-78-1(三聚氰胺)呈弱碱性（pKb=8），与盐酸、硫酸、硝酸、乙酸、草酸等都能形成三聚氰胺盐。在中性或微碱性情况下，与甲醛缩合而成各种羟甲基三聚氰胺，但在微酸性中（pH值5.5～6.5）与羟甲基的衍生物进行缩聚反应而生成树脂产物。遇强酸或强碱水溶液水解，胺基逐步被羟基取代，先生成三聚氰酸二酰胺，进一步水解生成三聚氰酸一酰胺，最后生成三聚氰酸。【折射率】1.872【闪点】>110°C【储存条件】−20°C【水溶解性】3 g/L (20 ºC)【Merck 】14,5811【检测方法】HPLC,NMR【BRN 】124341
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Update	2018-9-27wf