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Grey orange...?!

Started by Lakelady, October 16, 2011, 04:55:16 PM

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Lakelady

I am doing something wrong and don't know what, unless it's a reaction going on between opaque white and opaque orange.  I just get (quite attractive if that's what you are after) a lavender grey colour.  I think I may be working it too hot.....thought it was because I just can't find that 'sweet spot' on the torch for stringer so tried a full sized rod with the same effect  :-\

Anyone got any ideas about what I am doing wrong?
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flame n fuse

I think you're right about the chemical reaction. Don't know what sort of glass you are using, but I guess the chemistry of all of them must be pretty similar. The Bullseye 'Torchtips' say that orange, red and yellow glasses contain selenium and sulphur, while the whites contain lead, so you get a reaction which probably makes lead sulphide and the grey colour. French vanilla doesn't contain lead, so you'd be OK with that. You could try just working the orange on its own, or with yellow and see if the same thing happens.

Shirley

Perhaps you could make a stringer that was encased with clear so you didn't get a reaction.
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Lakelady

Mmm.  Good idea.  I might try a transparent orange too.  Good idea re French vanilla - it's quite pale but really wanted that crisp flaming orange on bright white!  Thanks for the chemistry...makes sense - I need to make more use of the science side of things!  :)
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flame n fuse

Good point about the encasing, that would fix it. Unfortunately the transparent oranges seem to also have sulphur!

tomcat

found this somewhere, think it was on the forum here, just not sure where ;D - not relevant to the colours you are looking at but some others that react - i printed it out and put it in my glass file and will now add the info in this thread to it  :) :)

Reactive Colours:

The copper/sulfur reaction is the one that causes the black lines. If you mix any color from group A with any color from Group B, you get a black line between the two colors:

Group A:   
     
light sky blue           
dark sky blue           
light turquoise         
dark turquoise
petroleum green

Group B:
ivory
dark ivory
yellow
coral
purple (edp 254)
opal yellow
Tongue pink
powder pink

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flame n fuse

you could use http://www.bullseyeglass.com/education/torchtips/ to add to the list and I produced an excel spreadsheet of reactions if anyone is interested

Lakelady

That is really useful information!  Thanks both.  Better get pulling that stringer...... :)
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tomcat

Quote from: flame n fuse on October 16, 2011, 06:01:13 PM
you could use http://www.bullseyeglass.com/education/torchtips/ to add to the list and I produced an excel spreadsheet of reactions if anyone is interested

certainly would be please  :)
Mark - Blog - http://beadsbeerandphotos.blogspot.co.uk/
Life is not a game - its THE game, so play it like you mean it
A Long time ago in Egypt cats were worshipped as Gods, cats have not forgotten this !

Lakelady

Quote from: tomcat on October 16, 2011, 06:25:36 PM
Quote from: flame n fuse on October 16, 2011, 06:01:13 PM
you could use http://www.bullseyeglass.com/education/torchtips/ to add to the list and I produced an excel spreadsheet of reactions if anyone is interested

certainly would be please  :)

And me!  That would be brilliant!
Turner Rowe Glass Art

SRJ

Me too please.   That sounds really useful - is there any way (if you are happy to of course and acknowledging your 'ownership') you could put it somewhere on FHF as a PDF so future members could access it?
Just a thought....

Sue

Margram

You could thinly encase the base bead with clear and decorate on top :)
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flame n fuse

Quote from: SRJ on October 16, 2011, 06:43:17 PM
Me too please.   That sounds really useful - is there any way (if you are happy to of course and acknowledging your 'ownership') you could put it somewhere on FHF as a PDF so future members could access it?
Just a thought....

Sue

I'm happy to do that if there's a way of doing it!!

Nick

Quote from: flame n fuse on October 16, 2011, 06:01:13 PM
you could use http://www.bullseyeglass.com/education/torchtips/ to add to the list and I produced an excel spreadsheet of reactions if anyone is interested

I would be interested in a copy please

Regards

flame n fuse

Sorry for not posting my spreadsheet, but this link takes you to several very useful sites http://www.morganica.com/bloggery/2011/latest/favorable-glass-reactions/