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water or water vapour will turn the blue cobalt chloride paper pink
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoCobalt chloride test paper turns pink when it is exposed to water or moisture. The blue form is cobaltous chloride dihydrate. The pink form is cobaltous chloride hexahydrate.
Wiki User
∙ 14y agothe presence of water in the liquid you are testing turns the paper from blue to pink
Wiki User
∙ 15y agoDrying, loss of water:
CoCl2.6 H2O (purple colour)-----→CoCl2 (blue colour)
Wiki User
∙ 14y agoYou don't say what you're using it for, but at a guess, it's probably something to do with relative humidity.
Wiki User
∙ 12y agoIt is used to test presence of moisture .
Wiki User
∙ 10y agowater
Wiki User
∙ 12y agoWater
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How do you test for H2o?
Testing with indicator paperstrip: Iodide-Starch gets blue
Why mercuric chloride paper is used in limit test for arsenic?
Mercuric bromide or Mercuric Chloride impregnated paper react with Arsin gases, ans form a yellow stain. this is an indication of the presence of Arsenic in the sample being analysed.
Why mercuric chloride does not give chromyl chloride test?
Because mercuric chloride is a covalent compound and is not an ionic compound. Only ionic compounds give chromyl chloride test
Why acetoacetic ester gives ferric chloride test?
acetoacetic aster gives ferric chloride test which is a typical test for phenols?
What is the mechanism of ferric chloride test?
reaction and meachanism of neutral feric chloride with phenols
Why does the cobalt chloride test paper turn pink when wet?
pink
What is cobalt chloride paper in simple terms?
Cobalt chloride paper is absorbent paper which has been soaked in cobalt chloride solution and allowed to dry. It is a convenient way to use cobalt chloride as a test for the presence of water. When cobalt chloride is anhydrous, that is completely without water, it is blue, but when there is water present, either in solution or in the solid, it is pink. To use cobalt chloride paper it is heated to drive off the water present, until it turns blue. You then dip it into the liquid you want to test. Water,or any liquid such as milk which contains water, will turn the paper pink (it may look white if there's not much cobalt chloride on it). Other liquids, e.g. gasoline, will have no effect.
What would be the color of cobalt chloride test paper be with a drop of ethanol?
Blue.
What color does cobalt burn?
Imagine a sparkler... Cobalt Chloride sends off millions of tiny, yellow sparks that shoot upward with the flame. Do not get to close when doing a flame test
Cobalt chloride will give a positive test for?
Cobalt chloride is used to test for the presence of water. If there is no water present it is blue, if water is present it goes pink.
Where can you buy cobalt chloride paper?
Cobalt Chloride paper may be purchased online however it was recently found to be a carcinogen. A safer test for H2O is Anhydrous Copper Sulfate. It is made by heating copper sulfate in a test tube over a Bunsen burner until it goes white. It then turns blue in the presence of H2O. I am not aware of an Anhydrous Copper Sulfate paper, however one may exist.
What two substances are indicated by the cobalt chloride and limewater test?
no answer..BOO!
How can you test tap water?
There are a great number of tests that can be performed on water to asses its chemical compositions. Typically, metal analysis is perfomed by AAS, pH, conductivity, chemical oxygen demand. A more specific question would allow for a more detailed answer.
What is the function of cobalt chloride paper?
Anhydrous cobalt chloride paper is blue, as it is in the presence of water or any sort of moisture it starts to turn pink.so if you are using it keep out of air until your ready to use it and dont touch it with ypur hands because the moisture on your fingers woulde change the outcome of your lab. :) ....so in other words its used to test moisture :P Hope i helped !
How do you test for H2o?
Testing with indicator paperstrip: Iodide-Starch gets blue
How can you test the presence of water vapour in air?
For an Accurate Reading you would need a proper Humidity Sensor, howerver you can get a reading off a combined temperature, Humidity and pressure Dials on a kind of clock With needles some people have them in their porches. you can buy them they not that expensive..
Why mercuric chloride paper is used in limit test for arsenic?
Mercuric bromide or Mercuric Chloride impregnated paper react with Arsin gases, ans form a yellow stain. this is an indication of the presence of Arsenic in the sample being analysed.
