December 04, 2020, 04:10:30 PM
Forum Rules: Read This Before Posting


Topic: How to bleach with hydrogen peroxide  (Read 233 times)

0 Members and 1 Guest are viewing this topic.

Offline zanarota

  • New Member
  • **
  • Posts: 6
  • Mole Snacks: +0/-0
How to bleach with hydrogen peroxide
« on: November 20, 2020, 01:47:24 AM »
Hi, I'm a designer, not a chemist. I am developing a new material from recycled cardboard, impregnated with latex and finished with zinc chloride. I don't know how to bleach the paper with hydrogen peroxide. Can you help me? Remember, I am not a chemist, so it would be the easiest way. Thanks.

Offline zanarota

  • New Member
  • **
  • Posts: 6
  • Mole Snacks: +0/-0
Re: How to bleach with hydrogen peroxide
« Reply #1 on: November 23, 2020, 06:31:20 PM »
3% aqueous solution doesn't work.

Offline pcm81

  • Full Member
  • ****
  • Posts: 257
  • Mole Snacks: +9/-3
Re: How to bleach with hydrogen peroxide
« Reply #2 on: November 26, 2020, 06:44:07 PM »
Hydrogen peroxide has bleaching effect at temperatures above 60*C.
Well, it will bleech at all temperatures, but very slowly at lower temps.
https://en.wikipedia.org/wiki/Peroxide-based_bleach

You need bleach activators to use it at lower temps: https://en.wikipedia.org/wiki/Bleach_activator

Offline zanarota

  • New Member
  • **
  • Posts: 6
  • Mole Snacks: +0/-0
Re: How to bleach with hydrogen peroxide
« Reply #3 on: November 26, 2020, 09:18:59 PM »
Is it necessary buffering agent? Do I need to neutralize the paper after bleaching?
« Last Edit: November 26, 2020, 09:53:18 PM by zanarota »

Offline zanarota

  • New Member
  • **
  • Posts: 6
  • Mole Snacks: +0/-0
Re: How to bleach with hydrogen peroxide
« Reply #4 on: November 26, 2020, 09:19:33 PM »
Hydrogen peroxide has bleaching effect at temperatures above 60*C.
Well, it will bleech at all temperatures, but very slowly at lower temps.
https://en.wikipedia.org/wiki/Peroxide-based_bleach

You need bleach activators to use it at lower temps: https://en.wikipedia.org/wiki/Bleach_activator
Thanks a lot

Sponsored Links