(资料图)
1、单宁就是鞣酸,是由五倍子中得到的一种鞣质。
2、为黄色或淡棕色轻质无晶性粉末或鳞片。
3、溶于水及乙醇,易溶于甘油,几乎不溶于乙醚、氯仿或苯。
4、其水溶液与铁盐溶液相遇变蓝黑色,加亚硫酸钠可延缓变色。
5、在工业上,鞣酸被大量应用于鞣革与制造蓝墨水。
以上就是【葡萄酒单宁酸的功效,葡萄酒单宁】相关内容。
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