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What is the colour of the fumes given off when crystals of iodine are heated?
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∙ 14y ago
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∙ 14y ago
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When lead nitrate is heated which colour fumes are evolved?
brown color fumes
What is colour of sulfur trioxide gas?
Colorless , but exposure to moist air gives white fumes.
Show the reaction when cyanoacrylate is heated or mixed with sodium hydroxide?
It "fumes" aka vaporizes. This is used for finger printing mainly, known colloquially as the "finger print method".
Make nitrogen triiodide?
Iodine crystals and concentrated ammonium hydroxide solution.3I2+4NH4OH = NI3+3NH4I+4H2OAmmonium iodide is filtered out and the precipitate on the filter paper is put in a ammonium hydroxide solution. Take out and dry before detonation.SAFTEY!!The Whole Production MUST BE DONE UNDER A FUME HOOD!! THE FUMES FROM THIS PROCESS ARE FATAL!!Do NOT GET NITROGEN TRIIODIDE ON YOUR CLOTHES IT STAINS ANYTHING IT TOUCHES.WEAR EARPLUGS WHEN DETONATING THE TRIIODIDE AND KEEP A FAIR DISTANCE! SHRAPNEL FLIES!!
What are exhaust fumes from cars an example of?
exhaust fumes of a car
What will happen if Iodine Crystals plus Cupric Sulfate plus Calcium Carbonate is heated?
first off DO NOT HEAT IODINE CRYSTALS because they create the same sort of fumes you would fine in a meth lab and it is possible that it can kill you because of its extremely toxic fumes and
When lead nitrate is heated which colour fumes are evolved?
brown color fumes
Is chemical change a black solid when heated changes into a purple gas?
When it is iodine (I2) it is only physical sublimation of the black (metallic shiny) I2 crystals into purple heavy gas clouds or fumes
Does heated aluminum give off toxic fumes?
No, aluminum does not give off any toxic fumes that are harmful in anyway. It does not produce gases nor does it vaporize.
Can inhaled fumes from heated denatured alcohol cause a false positive on a breathalyzer test?
Yes.
Is ammonium hydroxide a sublimative substance?
No. Sublimative substances (wow thats a mouthful!) are solids that when heated do not form a liquid but instead vaporise. Ammonium hydroxide cannot be isolated as a solid. It only exists in aqueous solution. An example of a solid that sublimes is Iodine which when heated gently in a test tube produces purple fumes and the dpoits as solid iodine on the cooler sides of the test tube above the heat. If you want a more technical description of sublimation look up sublimation (pahse transition) in Wikipedia
Is it safe to use galvanized steel in a barbecue pit?
Definitely not! Galvanized when heated will emit toxic fumes.
Why breather is not used in fluid coupling?
Breather is provided where the oil tends to give out fumes after getting heated. in a fluid coupling the fluid is not heated upto that temperature hence not required
Why must you be careful when handling the heated plastic?
It will melt and stick to your skin. (and burn like crazy) (also the fumes)
If krazy glue gets in your clothets and you inhale it for long enough can it harm you?
Possibly, but the fumes are usually only harmful when heated.
Why is stainless steel dangerous to weld?
stainless steel contains chromium. chromium gives off toxic fumes when heated.
Why is a solid seem to disappear when dissolved into a liquid?
Solids do not evaporate, they Sublimate, i.e. they go directly from the solid state to a vapor. An example this process would be if you gently heat Iodine crystals, you will see purplish vapors begin to form ... it's sublimating.CAUTIONIf you try this, do it only in fume hood and with a very small sample of Iodine. The fumes are poisonous!
