Polyurethane resin adhesive identification method

Take 50mg sample, add a few drops of 2mol/L sodium hydroxide, using phenolphthalein as an indicator, if it is alkaline (red), then add a few drops of hydroxylamine hydrochloride. 0.5 to 1 min after the addition of hydrochloric acid to make it acidic, then add 2% of 1 drop of ferrous chloride, showing a purple polyester polyurethane, showing a yellow polyether polyurethane.

Nail Polish is removed by Nail Polish Remover, which is an organic solvent, but it may also include oils, scents and colors. A bottle of liquid remover can be used with a cotton ball or a cotton pad to remove the old polish.

The most common nail polish remover contains acetone which is powerful and effective, but it is not good for the skin and nails. So in our nail polish remover, we use ethyl acetate rather than acetone, that is Non-Acetone Nail Polish Remover. Ethyl acetate is also the solvent used in nail polish. Use the non-acetone nail polish remover to protect your nails, choose Midie Cosmetics!

Nail Polish Remover

Non-Acetone Nail Polish Remover, Eco-friendly Nail Color Remover, Liquid Nail Manicure Cleanser, Nail Art Remover, Nail Polish Remover Non-toxic, Instant Nail Polish Remover

Zhejiang Zhongyimei Industry Co., Ltd , http://www.queeeny.com