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采用哪些方法区分蚕丝与羊毛

更新时间: 2021-06-06 10:08:57     

可采用燃烧鉴别法:

1、羊毛燃烧不快,火焰小,离火即熄灭,燃烧后有蛋白质臭味,灰烬呈卷曲状,黑褐色结晶 ,膨松易碎。

2、蚕丝能燃烧但不延烧,遇火后卷缩成一团,燃烧时有咝咝声,燃烧后有蛋白质臭味,与羊 毛相似,烧后成黑褐色小球状物,手触易碎成粉末灰状;涤纶燃烧时纤维卷缩,一面燃烧,一面冒烟,火焰呈黄色,有微弱甜味,燃烧后留下黑褐色硬块。

关键词: 采用 哪些 方法 区分 蚕丝 羊毛

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