I've tested this before, CiM Canary, and nothing has changed. The glass from Creation is Messy is wonderfully consistent, and the yellows, oranges and red are much more "what you see is what you get" than the same colour ranges from the Italian manufacturers.
It's a pure yellow - not quite as intense as it might be, owing to it being translucent instead of opaque.
I wonder what it would look like in an encased cane, over a core of white, or maybe over something else, and used as hair for a mermaid or angel. Hmm.
I didn't have any problems with it boiling - but this style of bead is not worked hot.