...remove it. However, soap is unable to remove it. To remove the stain , sodium chloride solution should be added to the stain . Then the stain can...
tea stain consist of oxidized polyphenol which is stablized by calcium silicates...amino acids are present in small amount, but do not play a key role in stain formation http://linkinghub.elsevier.com/retrieve/pii/S0308814606006030 http://linkinghub...
Usually, we use strong acids to remove rust and stains . For usual strong acids, there are 3 types. ...
1. the stains may be insoluble proteins.in those washing powder, there's enzyme...
... power might contain lipase for digesting (removing) oil stains on garment. It works similar to that of the "protease digests...
a)brown stains on Chinese wok = rust = Metal Oxide Lemon juice contain...
Of course C. A -- if it stains the bottle, it spills on your hands and you are hurt...
...tell me what substrate( cotton , nylon , artificail fiber & etc) the ink is stained onto , what type of ink ( ball pen , mark pen & etc ) , how it is formed...
首先用soap & 熱水洗手 , 可以去除大部份油墨 , 再用噴法膠 , 噴在有漬處 , 用紙抹淨 , 而且皮膚皮是會死去的 , stain 也随死皮脫去 , 以上已減少 stain on your skin 了 , 再加上printer's ink , toxicity 也不太高 , 就算你咬含手指 , 也無大問題的 .
