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21food.cn
6 天
儿茶黑(食品级)生产
儿茶黑色素(8001-76-1)的性状: 1。儿茶酸(C15H14O6·4H2O)为白色针状晶体。 2。于100℃成无水物。熔点96℃,无水物熔点177℃,于205℃分解。 3。遇氯化铁成暗绿色。微溶于冷水、乙醚。 4。易溶于热水、乙醇、冰醋酸、丙酮。不溶于苯、氯仿。 河北源创生物科技有限 ...
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