12235-22-2 - Names and Identifiers
12235-22-2 - Introduction
Acid yellow 159, chemical name is nitrosonaphthalene sulfonate (Nitrazine Yellow), is an organic dye. The following is an introduction to the nature, use, preparation and safety information of acid yellow 159:
Nature:
-Acid Yellow 159 is a yellow powdery solid, soluble in water.
-It is yellow in solution and red in acidic pH.
-It has strong fluorescent properties.
Use:
-Acid yellow 159 is widely used in indicators and indicator paper in chemical laboratories.
-It is often used in acid-base neutral solutions as a pH indicator to determine the acid-base properties of solutions, such as the determination of the pH of urine and body fluids in medicine.
-In addition, it can also be used in the fields of dyes, paints, inks and cosmetics.
Preparation Method:
-Acid Yellow 159 is usually synthesized by the reaction between nitronaphthalene and sodium sulfite.
-The specific synthesis method includes reacting nitronaphthalene with sodium sulfite solution, and then obtaining the final product through a subtractive color reaction.
Safety Information:
-Acid Yellow 159 is generally considered harmful to humans and the environment.
-When using or handling the substance, take appropriate protective measures, such as wearing chemical protective gloves and goggles, and avoid inhalation or contact with skin.
-When storing, it needs to be kept away from light and dry places, and away from flammable materials and organic materials.
-Observe local environmental regulations when disposing of waste from this material to ensure proper handling and disposal.
Last Update：2024-04-09 02:00:41