0
Well, you could heat it to about 30,000 K. It would be a gas at that temperature, but it would definitely be glowing blue.
Other than that, copper doesn't turn blue simply from heating. You might be able to get a blue patina on copper by heating it and forming a very thin layer of oxides on the surface, but controlling the color is tricky, because the exact color is very dependent on the thickness of the oxide layer (this same effect is what's responsible for the "rainbow" colors of oil on water).
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Why did my copper bracelet turn purple and blue in 24 hours?
Copper is very reactive to the air and skin and will likely turn colors due to oxidization. With the purple and blue colors showing, especially so quickly, it is likely the bracelet was heat treated specifically for this purpose.
How Benedict's solution react with sugar?
Sugar donates electrons that reduce blue copper (II) sulfate to orange copper (I) oxide.
Are all the compounds of copper plus 2 blue?
Not necessarily. They might be blue, green, or essentially white depending on how many waters of hydration are associated with the copper (II) ion. It's very easy to see this if you just take some copper (II) sulfate pentahydrate (blue vitriol) in a test tube and heat it; as the waters of hydration are driven off, the crystals turn white (some people call it a very light green; it looks white to me). When the crystals are allowed to cool they will absorb water from the air and eventually turn blue again. Aqueous solutions of copper (II) compounds are blue, as far as I know; at least I can't think of any counterexamples.
What is the color of copper sulphate?
Copper sulfate itself is white/colorless when anhydrous. However, it's hygroscopic and the pentahydrate (the usual form) is blue... in fact, it's just about the same color as the sidebar over to the left there.
What would happen if copper sulfate evaporated?
Copper sulfate would crystalize as blue crystals, water would evaporate. To get the copper sulfate itself to evaporate you would need to heat it, melting the dry crystals then vaporizing them.
What happens when you heat copper sulfate crystals?
they get warmer Blue Copper sulphate crystals contain a lot of water. If you heat them the water is driven off and they turn white.
What type of change happens when you heat copper sulfate?
Blue Copper sulphate crystals contain a lot of water. If you heat them the water is driven off and they turn white.
Why when you heat up copper sulphate does it turn blue?
You have this backwards. Copper sulfate, CuSO4.5H2O is blue. When it is gently heated, it loses water and turns white.CuSO4.5H2O --> CuSO4 + 5 H2O.The white substance is anhydrous copper sulfate. If you put water on it it turns blue again.
Why does copper blue macke the water turn blue?
copper blue macke make water blue because the die from the macke spreds through the water causing it to turn blue
Why did my copper bracelet turn purple and blue in 24 hours?
Copper is very reactive to the air and skin and will likely turn colors due to oxidization. With the purple and blue colors showing, especially so quickly, it is likely the bracelet was heat treated specifically for this purpose.
What colour does blue copper chloride turn when moistened?
A darker shade of blue.
What makes fire turn blue?
Copper chloride makes fire blue.
Why does saltwater turn blue when copper metal goes in it?
because copper dissolves in salt.
Why does water turn blue when you mix copper sulphate?
Any water soluble blue salt (and which does not react with water) can turn the solution blue. For example = Copper(II) sulfate[CuSO4], Oxovanadium(IV) sulfate[VOSO4], Copper(II) nitrate[Cu(NO3)2], etc.
What color does anyhydrous copper sulphate turn when added to water?
Blue, because the copper cations become hydrated and the hydrated ions have a blue color.
What colour does hydrous copper sulphate turn when heated?
blue
Does copper II chloride become blue in water?
Yes it does turn blue in water, it dissolves blue.
