Forums Materials General
  • Topic: Web-like structures of black dust in caustic liquid

    Back To Topics
    (0 rates)
    • September 24, 2018 11:31 AM CEST
      • Post(s)
        2
      • Thank(s)
        0
      • Thanked
        0
      • cR(s)
        0 0

      Web-like structures of black dust in caustic liquid

      Hi,

      this weekend I started nano-coating copper wires and plates using the "cold caustic" method. I first made a caustic liquid using 60g NaOH, 15g KOH, 3 PET bottle necks, some pieces of aluminum foil, and 1 liter of boiled destilled water. After 2 hours the liquid had cooled down so I could use it. When I removed the lid from the PP box, I saw flakes of black dust in the liquid which had formed web-like structures which looked a bit like spider webs or a neural network in the brain. :-)

      Does anyone have an idea what this black stuff could be, and what might cause such structures?

      Stefan

      This post was edited by Stefan B. at October 3, 2018 3:35 PM CEST
    • September 27, 2018 9:15 AM CEST
      • Post(s)
        2
      • Thank(s)
        0
      • Thanked
        0
      • cR(s)
        0 0

      Magnetic Carbon?

      I also found out that these black flakes/particles in the "cold caustic" solution are magnetic:

      Could it be that the particles are carbon from the PET bottles which becomes magnetic in a nano state?

      This post was edited by Stefan B. at October 3, 2018 3:35 PM CEST
    • October 22, 2018 7:34 PM CEST
      • Post(s)
        4
      • Thank(s)
        0
      • Thanked
        1
      • cR(s)
        0 0

      Untitled title

      It seems to me more like the byproduct of Aluminium in Caustic, which may present magnetic attraction.

    Icon Legend and Forum Rights

  • Topic has replies
    Hot topic
    Topic unread
    Topic doesn't have any replies
    Closed topic
    BBCode  is opened
    HTML  is opened
    You don't have permission to post or reply a topic
    You don't have permission to edit a topic
    You don't have the permission to delete a topic
    You don't have the permission to approve a post
    You don't have the permission to make a sticky on a topic
    You don't have the permission to close a topic
    You don't have the permission to move a topic

Add Reputation

Do you want to add reputation for this user by this post?

or cancel