Topic: Another question - is yellow glass particularly difficult to make?

[flying free]

I've wondered this on and off over the years.  I love yellow and feel that I need some yellow in most of my displays, but I have very few pieces and I see very few pieces ever for sale - I have one Carlo Moretti, 1 Aseda Bo Borgstrom vase and a Nazeing cloudy yellow posy plus one yellow tango piece.  I'm aware there were yellow cased pieces done especially by the Scandinavian glass makers and also Empoli but I don't often see many of those around. I do recall reading somewhere on the board that yellow is hard to control.  Has anyone else wondered this?
m

[chopin-liszt]

Yes, not a matter of wonder, yellow is a very difficult one.

[antiquerose123]

Yes, not a matter of wonder, yellow is a very difficult one.

Really..... Yellow is hard to control?    What makes yellow so much hard to control than another (or any) color ??


I never knew that.  So would that apply to this bowl HERE   too ??

Super question flying free.  Learn something new everyday!!

[rosieposie]

Good morning all!  Yes I had noticed that yellow was scarce on the ground m,  and it is my favourite colour.....in fact I think I mentioned that in your link Rose.
Would anyone like to 'splain why it is difficult?  Sue, you often have answers to glass production problems, can you help here, as I have over 600 pieces of glass and only half a dozen are yellow,  which is strange considering it is my favourite.

[chopin-liszt]

Umm - this is getting into hard physical chemistry, not my area!
I'm sure it has been explained here before - many, many moons ago - possibly circa 2004.

Perhaps folk have also noticed that in old ceramics, porcelain and china, yellow is a highly unusual enamel to find - it is always indicative of a superior and very expensive production.

But we need somebody else to explain it. I've forgotten.

[scavo]

The answer could be here:

[Mod: huge Google url converted to clickable words]
Google Books Link

but I'm not a chemist so my brain just starts thinking about looking at pretty things when I read it!

I also have a 'would this apply' question for this item I found:
http://www.glassmessages.com/index.php/topic,44395.msg247264.html#msg247264
It's a bit of a head scratcher because I'm not convinced this is high quality. It's very lightweight but, the scarcity of yellow glass made my mind up to buy.

[rosieposie]

Oooh, thanks for that Scavo.....my brain hurts now,  but I get the gist that it takes Platinum  to turn glass yellow, and as that is an expensive element,  it will increase the cost considerably?  Am I getting this right?

Where are the chemists and glassblowing experts this morning.....out walking in the sunshine?

I won't be selling any of my yellow glass anyway,  not until I get a definitive answer.

You are right about yellow tiles as well Sue,  I had the devils own time trying to find them for the kitchen....got some in the end,  but wow, expensive!!  Red tiles seemed to be tough to find as well,  but there is plenty of red glass around,  so back to the yellow glass conundrum!

[scavo]

Red glazed tiles are not rare in either glass or ceramic but you don't see yellow ones often.

Cadmium is used for yellow in paint and enamel.

It's interesting because Yellow is one of Heals hot colours for home decor this season.
http://www.heals.co.uk/vases-bowls+objets/beauty-vase-yellow/invt/beautyvase?htxt=%2FUvRjc0xAaKk26JwgsxcsV6E2gjpK53ITJCPcypNRrR6jhjYX3SDlEUFWaOdTpLU0xVcTayKYYOc%0Aw4t9gBa9qg%3D%3D and this vase looks quite pricey (?) - everything Heals is pricy! And they don't say who the maker is. This looks similar to my vase (post above) except the neck is cut differently.

I am going to have to dig my yellow vase out of the cupboard!

[johnphilip]

I was told by a Whitefriars cane maker that they had problems with the yellow canes , and you dont see many of their weights with yellow canes , now i suppose Nigel will say he has a kitchen full of them 

[rosieposie]

It certainly looks very like your vase scavo, I looked at your link.  What a shame they don't say where or by whom it was made....do you think they might answer if you emailed them?