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Issue:
zhi wu wu ji qing chu fa
Author(s):
ZHAO Huike
Pages:
48
Year:
1994
Issue:
6
Journal:
Teaching and Learning Reference for Middle School Chemistry
Keyword:
酸性高锰酸钾
;
色织物
;
污迹
;
亚硫酸钠溶液
;
苏打溶液
;
蓝色染料
;
冷水清洗
;
化学药品
;
草酸溶液
;
最后水洗
;
Abstract:
<正> 织物上出现污迹,有的难以用洗涤剂洗净,但能用化学药品去除。 1.血迹 新鲜血迹用冷水清洗。陈旧的血迹中,蛋白质因变性而凝固,可浸在10%的氨水中或2%的大苏打溶液(35℃)里,直至血迹消失后水洗。 2.墨迹 先用水润湿,再用米饭粒或干淀粉在污迹上揉搓,碳粒会吸附在淀粉上除去。最后用水洗净。
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