Chemical properties of cotton
fiber:
1. Effect of acid: Cotton is attack by hot dilute acids or
cold concentrated acids in which it disintegrates. It is not affected by cold
weak acids.
2. Effect of alkali: To alkali there is an excellent
resistance for Cotton. Cotton swells on caustic alkali's but it never damaged.
3. Effect of solvent: There are very few solvent that will
dissolve cotton completely. It has a high resistance to normal solvents but is
dispersed by the copper complexes cuprammonium hydroxide and cupriethelene
diamine and by concentrated H2SO4 (70%).
4. Action of microorganism: Cotton fibers can resist moths
and most insects but it can be attacked by fungi and bacteria.
5. Action of water: Water, which is very strong polar in
nature, easily attacked by the polar –OH group of the cotton fiber. So that
water is able to penetrate into the cellulose network of the cotton fiber. This
water absorption causes swelling of the fiber.
6. Effect of temperature: Cotton fiber shows an excellent
resistance to thermal decomposition. Prolonged heating at 100ºC shows the
cotton no visible change heat at 120ºC for several hours shows the cotton
little or no change in strength. But begin to turn yellow gradually. Cotton
decomposes markedly at 150ºC.
Nice article.
ReplyDeleteThis is such a great resource that you are providing and you give it away for free. best waterproof mattress protector
ReplyDeleteRegular visits listed here are the easiest method to appreciate your energy, which is why why I am going to the website everyday, searching for new, interesting info. Many, thank you Mould Release Agent Supplier
ReplyDeleteThis is very smart, really an intelligent idea. This is my first time in your blog and I really love it. Thanks for this awesome post. Prestamistas
ReplyDeleteBesides the obvious attention factor, bunk beds do serve a purpose. With space in most households at a premium, being able to put one bed on top of another is simple genius. floor bed
ReplyDeleteKnow what alternatives you have in addition to the conventional innerspring and box spring sets. There are other feasible choices depending on what you are searching for. Those alternatives include foam mattresses, futons, airbeds, adjustable beds, and waterbeds. truck mattress
ReplyDeleteIt proved to be Very helpful to me and I am sure to all the commentators here! ephedrine powder for sale
ReplyDeleteI definitely enjoying every little bit of it. It is a great website and nice share. I want to thank you. Good job! You guys do a great blog, and have some great contents. Keep up the good work. ketamin kaufen
ReplyDeleteMCS as time goes on drains a person's dietary stores and messes up a wide range of frameworks and organs in the body. Subsequently the term multi-framework issue. The individual gets sharpened to the specific chemical. With rehashed openness, the affectability increments.
ReplyDeletemélybölcsős szállítás Europa-Road Kft.
When buying online it's very difficult to be sure that the company you are looking at is the one that will provide you with the highest quality chemicals to help you achieve results with your research. buy xyrem online Legit
ReplyDelete