I need a clear chemical that I can react with another chemical to produce a color.?
366185
phenolphthalein and dilute sodium hydroxide are both clear and will turn pink when mixed
949044
1) put them into the solution of bromine, the substance which makes the solution lose its colour is NaI\n2NaI + Br2 => 2NaBr + I2\n2) dissolve them in water, barium sulfate is the only one which cannot be dissolved in water\n3) Na2CO3 + 2HCl => 2NaCl + H2O + CO2\nNaHCO3 + HCl => NaCl + H2O + CO2
208896
just mix 'em up  , if you give me the name of 'all ' the colours , i will tell you how to make them\n\nI guess you mean primary colours (= base colours)\nthese are yellow red and blue\n\nyellow and red will make orange\nyellow and blue will make green\nred and blue will make purple\nyellow , red and blue will make brown\nmix them up in different proportions to get all the other colours
1059563
Hussain, your question has been sitting in the Quotation category for six days now without a reply.  Although I know the basic function of a paint dissolver, I do not know the chemical reaction, or how to size, etc.\n\nMay I suggest that you ask this question again in the Home & Garden category, where they have a sub-category - Decorating & Remodeling.  I'm sure you will find many experts there who will be able to help you.\n\nHussain, I've just checked and you are a complete newcomer to Yahoo Answers so I will direct you to Decorating & Remodeling.  First, go to the top left hand corner of this page, where you will see (in blue) the word "home", under the green ASK.  Click on that, and then when the categories appear beneath, click on Home & Garden (14 down).  You will then see the sub-categories - one of which is Decorating and Remodeling (2 down).\n\nWelcome to the family ... and good luck!
136909
If you have the letter names, use the Periodic Table of Elements.  If not, use PH paper, and that might help.  Go by color, soluability, and texture.
684821
Please visit:\nhttp://www.homeofpoi.com/articles/colouredflames.php
790607
Any chemical that will react with oxygen can give a color change; it just depends on how fast a color change you want.  Generally, anything that reacts quickly will also be fairly dangerous to handle.  Most plastics also have antioxidents mixed in to limit their degradation in air, which will also limit your color change.\n\nThe chemical with the fastest reaction that comes to mind is phosphorus - which will ignite in oxygen.\n\nYou could also try iron or copper, which would be a much slower reaction, but also much safer.  You can mix a weak acid (like acetic acid - vinegar) in with the plastic to accelerate the reaction. \n\nBy the way - for this to work, you will need to prepare the plastic in a nitrogen (or other non-oxygen) atmosphere.
114804
No need to break it down to "molecular" other wise, try this: Sodium thiosulphate. Dont just use it coz they all vary in their Ph U know the basisity or acidity they concentrate.
818017
Generally, a dye. You need to be more specific. What paper? What colour?
883525
How about using gumdrops and toothpicks? Might be hard to get enough of four colors, but it would be flexible. Good Luck:)
993248
HCI hydrogen chloride \nto make HCI u have to mix Sulfuric Acid and Sodium
83605
go to www.chemfinder.camsoft.com you can find that and so much more
1009358
U r asking for a science project.?\nI have an idea for the science project for chemistry side
1162637
I think you can use something called silica crystals! I know my dad us to use it when we were kids! Was great!
701088
Ordinary starch will yield a blue colour with iodine.\n\nThe best iodine indicator (other commercial material like Vitex etc) can be made by dissolving 5 g of soluble astarch in 100 mls of boiling water. Mix raidly to dissolve. Make up to one litre with good quality water. Add one pellet of NaOH or KOH and add a few drops of 0.1% phenolphthalien indicator. When the colour disappears, discard it and make up fresh.
121669
Once again, you can follow my directions for making anhydroyus copper sulfate in your previous post. Anhydrous copper sulfate is white or a very pale blue-green if you didn't keep it dry enough, which is as close to colourless as you are likely to get. Water of course is colourless.\n\nThe chemicals themselves are fairly easy to find.\n\nIf you have access to the school's chemical supply you should be able to get some phenolphthalein. Add a few drops of baking soda and Bob's your Uncle.
740416
Your question is incomplete.  What type of stains are you talking about?  Looking at the properties of the stain and you may find the answer you need.