The document discusses the chemistry of paint making and color perception. It explains that light hits the eyes and is focused on the retina, where rod and cone cells absorb light and send signals to the brain to perceive color. Making paint can be difficult as it requires finding chemicals that produce the desired color when reacted. An example reaction is provided to make blue paint by adding iron(II) sulfate and potassium hexacyanoferrate(III) solutions dropwise. The colored solid is then separated, ground, and mixed with oil to create paint. The energy from chemical reactions determines the color that is perceived.

1. By Lacey Bristol
CHEMISTRY OF PAINT MAKING

2. COLOR
• The perception of color is very important for paint making.
• The knowledge of what chemicals produce a certain color cannot be deciphered without
the knowledge of how we perceive color.

3. PERCEPTION OF COLOR
 Light hits our eyes and passes through the cornea, lens, and vitreous fluid.
 These three objects focus light in the inner part of the eye on the tissue
lining, also known as the retina.
 The absorption of light activates thousands of rod and cone cells make up
the retina.
 An alpha particle is released and attaches to a protein which cause and
electrical impulse.
 The electrical impulse leads to a neurotransmitter release which signals the
brain and creates a picture.

4. DIFFICULTIES OF PAINT MAKING
• It can be hard to make paint because it can be hard to find chemicals that will produce the
color desired.
• Most chemicals when they react form a cloudy product and do not dissolve in water

5. EXAMPLE OF PAINT MAKING
• . First solution one is made by dissolving two grams of iron(II)
sulpate in four cubed cente
meters of distilled water.
• Then solution two is made by dissolving on gram o f potassium
hexacyanoferrate(III) in three cubed centimeters of distilled
water.
• The blue color is made by adding one drop at a time mixing
each time.
• Each color is made with different chemicals that will have the
product of their color.

6. EXAMPLE CONTINUED
• To make the paint, the colored solid and water is separated by
filtration.
• Once the solid is separated it is grinded and mixed with oil to
give it the consistency of paint.
• https://www.youtube.com/watch?v=Iel5Q1lk8CQ

7. WHAT MAKES THE COLOR
• The energy associated with the chemical reaction is what makes
the color.
• Color is energy because light is energy and the energy of the
absorption is the color of the wavelength spectrum that we see

8. Works Cited
Creative Chemistry. N.p., 29 Dec. 2008. Web. 10 Apr. 2013.
<http://www.creative-chemistry.org.uk/activities/paints.htm>.
Kettering University. N.p., 12 Nov. 2004. Web. 11 Apr. 2013.
<http://www.kettering.edu/news/seeing-red-or-green-chemistry-color-vision>.
Orna, Mary Virginia. "Paintmaking." Adventures: 12-13. Rpt. in Adventure.
N.p.: n.p., n.d. N. pag. Print.