collapse

Author Topic: TV glass toxicity?  (Read 2190 times)

MakkyBrown

  • Global Moderator
  • ALF'er VIP
  • *****
  • Posts: 1105
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #15 on: February 06, 2019, 06:01:43 PM »
Cut 3 very nice stones from TV glass and haven't died yet, despite the Avatar name.

Regards,
Ghost.
I reckon you'd be pretty safe with 3 stones. I think it's more of a long term thing where it accumulates. I was reading one study measuring the rates of leaching out of different types of tv glass as there are concerns about it in land fill. Cutting or grinding the glass would have to increase the rate. Could just wear a glove but I'm not going to cut leaded glass myself.


Rusted

  • ALF'er Platinum
  • *
  • Posts: 383
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #16 on: February 06, 2019, 08:21:38 PM »
I don't think I would be all that worried about faceting lead glass, really how much contact do you have with the lead glass or its slurry when faceting.
I have seen some interesting stones cut from Uranium glass, I don't reckon I would do it though,  that's a bit risky. Swallow a speck of that and you might have Alpha particles zapping through your body, nah.

MakkyBrown

  • Global Moderator
  • ALF'er VIP
  • *****
  • Posts: 1105
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #17 on: February 06, 2019, 10:33:11 PM »
lol, I didn't even know there was uranium glass. So google it..once made into tableware.

https://en.wikipedia.org/wiki/Uranium_glass

Rusted

  • ALF'er Platinum
  • *
  • Posts: 383
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #18 on: February 07, 2019, 05:51:58 AM »
It's pretty stuff but apart from glowing it doesn't do much, quite popular with collectors.

FlashGP

  • ALF'er Platinum
  • *
  • Posts: 489
    • View Profile
Re: TV glass toxicity?
« Reply #19 on: February 08, 2019, 07:11:34 PM »
I don't think I would be all that worried about faceting lead glass, really how much contact do you have with the lead glass or its slurry when faceting.
I have seen some interesting stones cut from Uranium glass, I don't reckon I would do it though,  that's a bit risky. Swallow a speck of that and you might have Alpha particles zapping through your body, nah.

What are you worried about, our new airconditioner and ozone generators basically generate them as antibacterial agents.  Alpha particles are generally hydrogen irons wizzing through the air instead of being in solution.  They don't last long.

Its the heavy metal poisoning from uranium that is worse.
Yours Sincerely
Flash (Gordon)

Ghost

  • ALF'er Platinum
  • *
  • Posts: 444
    • View Profile
Re: TV glass toxicity?
« Reply #20 on: February 08, 2019, 08:16:55 PM »
Uranium decays into lead eventually.
So after quite a few billion years you will die of lead poisoning anyway.

Orange Pirate

  • ALF'er Gold Member
  • *
  • Posts: 210
    • View Profile
Re: TV glass toxicity?
« Reply #21 on: February 08, 2019, 10:12:15 PM »
I don't think I would be all that worried about faceting lead glass, really how much contact do you have with the lead glass or its slurry when faceting. I have seen some interesting stones cut from Uranium glass, I don't reckon I would do it though,  that's a bit risky. Swallow a speck of that and you might have Alpha particles zapping through your body, nah.
What are you worried about, our new airconditioner and ozone generators basically generate them as antibacterial agents.  Alpha particles are generally hydrogen irons wizzing through the air instead of being in solution.  They don't last long.Its the heavy metal poisoning from uranium that is worse.



Mmmmm. That sounds like a modern day something they said to the Radium girls.
For MB  ;) https://en.wikipedia.org/wiki/Radium_Girls

MakkyBrown

  • Global Moderator
  • ALF'er VIP
  • *****
  • Posts: 1105
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #22 on: February 10, 2019, 08:43:07 AM »
Thanks OP, a sad tale.

Orange Pirate

  • ALF'er Gold Member
  • *
  • Posts: 210
    • View Profile
Re: TV glass toxicity?
« Reply #23 on: February 10, 2019, 01:46:11 PM »
Thanks OP, a sad tale.


Indeed.

FlashGP

  • ALF'er Platinum
  • *
  • Posts: 489
    • View Profile
Re: TV glass toxicity?
« Reply #24 on: February 11, 2019, 08:57:26 AM »
Hi OP

Re Radium Girls,

TRUE, alpha particles were to blame.  But they were pointing their paint brushes on their lips.  As a result they ingested a fair amount of radium.

The dosage and where it is applied is the key.  Swallowing large amouts of alphs emitters will eat you from the inside, as well as poison you.

Leave same in contact with your skin, and you get burns there, as you would if you sunbaked a spot way too long. 

In both instances there's also the increased risk of cancer. 

But there is a background level of alpha particles floating around that we take for granted.

I'm not advocating we eat the dust,  but basic hygene measures, including cleaning your machine should be sufficient protection for the small amount we would be likely to cut.

Regards
Gordon
Yours Sincerely
Flash (Gordon)

Buch Metter

  • ALF'er Bronze Member
  • *
  • Posts: 26
    • View Profile
Re: TV glass toxicity?
« Reply #25 on: March 08, 2019, 05:56:32 PM »
Grinding material is usually swept away with the water solution that  is dripped onto the lap.  I would be more concerned with where the drip bucket is poured and what is done with the resultant slurry, like, I wouldn't give it to the wife to use as a cosmetic masking agent on her face.

FlashGP

  • ALF'er Platinum
  • *
  • Posts: 489
    • View Profile
Re: TV glass toxicity?
« Reply #26 on: March 08, 2019, 07:52:45 PM »
I wouldnt put it in the chook run or on the vegi gardes, no point in eating glow in the dark eggs and veg.

But the flower garden, mmmm fluoro flowers may look pretty.
Yours Sincerely
Flash (Gordon)

roughcreations

  • ALF'er Bronze Member
  • *
  • Posts: 11
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #27 on: June 20, 2019, 12:13:48 PM »
Hi,
As an experiment, I recently took some hand-held XRF readings of tv-tube glass I collected from an old broken LG brand colour TV I found that had been dumped.



The dark grey coloured sample is from the flat front section, and the other curved yellowish piece presumably from the side/back section.

Reading from curved yellowish piece of glass (below):

Reading from flat dark grey piece (below):


The lead (Pb) content varied markedly as you can see from the screen captures, below-detection in the flat piece, approximately 20% Pb in the curved piece. No other nasties such as cadmium in appreciable quantities, a sniff of arsenic in the high-Pb sample.
Summary:

I was quite surprised by the variation in lead content, but the results back up some earlier comments.

Rusted

  • ALF'er Platinum
  • *
  • Posts: 383
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #28 on: June 20, 2019, 06:03:11 PM »
Someone has done the experiment. Excellent.
Thanks for that.

MakkyBrown

  • Global Moderator
  • ALF'er VIP
  • *****
  • Posts: 1105
    • View Profile
    • Email
Re: TV glass toxicity?
« Reply #29 on: June 24, 2019, 09:30:32 PM »
Welcome to the forum Rough Creations, good to see another Tassie member. I have not forgotten about sending you an email and I still have your card in my phone :)  I've been busy over the last few weeks, finished my designs book,webpage almost, robots all this week then national comp. Mid July and I should have some free time to help with an encoder on your machine if you want. I'll send you an email now I've got your card out. :)

RE: the TV glass, the grey glass is imo horrible and if anyone wants some I have a heap. Thought it was a good idea(smashing the old tv) for test cutting. But really topaz or cz, stones that actually look nice for your effort is a far better option.

CheersAndrew

Hi,
As an experiment, I recently took some hand-held XRF readings of tv-tube glass I collected from an old broken LG brand colour TV I found that had been dumped.



The dark grey coloured sample is from the flat front section, and the other curved yellowish piece presumably from the side/back section.

Reading from curved yellowish piece of glass (below):

Reading from flat dark grey piece (below):


The lead (Pb) content varied markedly as you can see from the screen captures, below-detection in the flat piece, approximately 20% Pb in the curved piece. No other nasties such as cadmium in appreciable quantities, a sniff of arsenic in the high-Pb sample.
Summary:

I was quite surprised by the variation in lead content, but the results back up some earlier comments.

Tags:
 

* Sponsor

HTML Online Editor Sample

ALF is hosted by Aussie Sapphire as a free service to the Lapidary community.

Visit our website here
Phone 1800 50 21 40
Or find us on Facebook

Recent Activities

Can anyone id this facet head? by Jimnyjerry
[September 18, 2019, 09:11:12 AM]


AFG 2020 Faceting competition by FlashGP
[September 17, 2019, 07:43:30 PM]


Buying a saw: comparison videos by Ghost
[September 13, 2019, 07:22:35 AM]


MB concave build by FlashGP
[September 12, 2019, 05:43:07 PM]


Places to find radioactive rocks? by FlashGP
[September 11, 2019, 08:17:17 PM]


Wee Jasper by Sandbagger
[September 05, 2019, 09:54:39 PM]


Drabsch Faceting machine, help required. by Rusted
[September 02, 2019, 04:26:15 PM]


Problem with 6" Expander Wheel by Bucket
[September 02, 2019, 02:50:18 PM]


Sapphires??? by Rivarat
[September 01, 2019, 05:29:59 PM]


Tin or silver along Strathbogie Rd? by MissyP
[August 30, 2019, 09:30:20 PM]


facet cutting speed by Bucket
[August 28, 2019, 08:35:31 PM]


can you clean rocks with Coca Cola ? by Rusted
[August 28, 2019, 07:33:38 AM]

* Calendar

September 2019
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 [19] 20 21
22 23 24 25 26 27 28
29 30

* Who's Online

  • Dot Guests: 60
  • Dot Hidden: 0
  • Dot Users: 2
  • Dot Users Online:

* Find us on Facebook

* Forum Stats

  • stats Total Members: 4105
  • stats Total Posts: 54914
  • stats Total Topics: 5861
  • stats Total Categories: 6
  • stats Total Boards: 27
  • stats Most Online: 224