Re: Microwave absorbing materials?

Bruce Sinclair wrote:

In article <131nc3073d8bad8@xxxxxxxxxxxxxxxxxx>, Marvin <physchem@xxxxxxxxxx> wrote:
Roman King wrote:
I have been using a microwave oven to treat solid plastics. For that
purpose, I place a small glass beaker filled with water to absorb excess
microwave. The problem is that I must add water everytime I use the
microwave oven,which becomes an inconvenient chores. I am wondering
whether anybody could suggest other inexpensive and commonly available
microwave absorbing materials which does not much evaporate as water.
Roman

Anything that absorbed microwaves would get hot. Water uses
a lot of the energy as heat of vaporization, and it won't
get hotter than 100C. And it is cheap. Plus, microwave
ovens intentionally use a wavelength that is absorbed
strongly by water.

.. or to be a little more accurate, the O-H bond :)

In point of fact a microwave oven is specifically tuned *away* from
absorption lines into overall lossiness. If it were in resonance with
an absorption it would have no useful penetration depth.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2
.

Relevant Pages

  • Re: Microwave absorbing materials?
    ... I place a small glass beaker filled with water to absorb excess ... The problem is that I must add water everytime I use the ... microwave oven,which becomes an inconvenient chores. ...
    (sci.chem)
  • Microwave Boilers : Investors Wanted : The Microwave Hot Water Boiler Heating System Company Increa
    ... The Microwave Hot Water Boiler Heating System Company Increased ... Microwave Hot Water Boiler Heating System's Thorium Plated Magnetron ... water drain valve and a cooled water pipe that comes from the steam ... another sealed tube that contains cesium gas that generate electrons, ...
    (sci.physics)
  • Re: Washer/dryer for TT?
    ... You agitate an item by grabbing it like a cat with its claws into a new couch from both sides and rub it against itself vigorously while the item is submerged in the water. ... This is what happens when you stand too close to the microwave when nuking food. ... Or, better yet, *don't* cook your foods. ...
    (rec.outdoors.rv-travel)
  • Re: Microwave absorbing materials?
    ... Roman King wrote: ... I place a small glass beaker filled with water to absorb excess microwave. ... The problem is that I must add water everytime I use the microwave oven,which becomes an inconvenient chores. ...
    (sci.chem)
  • Re: Washer/dryer for TT?
    ... You agitate an item by grabbing it like a cat with its claws into a new couch from both sides and rub it against itself vigorously while the item is submerged in the water. ... This is what happens when you stand too close to the microwave when nuking food. ... Or, better yet, *don't* cook your foods. ...
    (rec.outdoors.rv-travel)