HISTORY: Photographic printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple and low-cost process to produce copies and drawings, referred to as blueprints. The process uses 2 chemicals: Ammonium iron, citrate potassium ferricyanide. For these chemicals their health is 1, fire is 1 and reactivity number is 0.
IF SKIN CONTACT: Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops. Cold water may be used.
IF EYE CONTACT: Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention if irritation ocuurs.
PROCESS: When the cyanotype emulsion was applied to the paper it was a yellow green. When the cyanotype was placed outside in the sunlight the object was traced onto the paper because of the glass pressed against the emulsion. I observed that the paper turned green. The outline of the paper turned white and the outside object turned blue because of the light and the chemicals added. The paper turned blue becuase of the chemicals combined together and exposed to the sunlight that created the ferric ferrocyanide also known as Prussian blue.
IF EYE CONTACT: Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention if irritation ocuurs.
PROCESS: When the cyanotype emulsion was applied to the paper it was a yellow green. When the cyanotype was placed outside in the sunlight the object was traced onto the paper because of the glass pressed against the emulsion. I observed that the paper turned green. The outline of the paper turned white and the outside object turned blue because of the light and the chemicals added. The paper turned blue becuase of the chemicals combined together and exposed to the sunlight that created the ferric ferrocyanide also known as Prussian blue.