C.I. Acid Yellow 67 - Names and Identifiers
C.I. Acid Yellow 67 - Introduction
Acid Yellow 67(Acid Yellow 67) is an acid dye with the chemical name Methyl Yellow 5. The following is the nature of the dye, use, preparation and safety information.
Nature:
- Acid Yellow 67 is a yellow crystalline dye with good solubility.
-It is an acidic solution in water, soluble in alcohol and ether solvents.
-Acid Yellow 67 has good stability in low pH environments.
Use:
- Acid Yellow 67 is mainly used as a dye for textiles, leather, paper and ink.
-Due to its good acid solubility and bright color, it can also be used for food coloring.
-In addition, Acid Yellow 67 can also be used as an indicator in laboratory staining and certain chemical analyses.
Preparation Method:
- Acid Yellow 67 can be obtained by the substitution reaction of the dye compound on the sulfate group (-SO3H).
-One preparation method involves reacting sodium bisulfate (NaHSO3) with the corresponding aromatic amine in the presence of formic acid (HCOOH) or nitric acid (HNO3) to form Acid Yellow 67.
Safety Information:
- Acid Yellow 67 has low toxicity to human body, but it still needs to be used safely.
-Wear appropriate personal protective equipment such as gloves, glasses, and lab coats when operating and touching Acid Yellow 67.
-Avoid direct contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water.
-Seek immediate medical help if inhaled or ingested accidentally.
-When storing and handling the dye, observe safety regulations, avoid contact with strong oxidants, and avoid contact with children.
Last Update：2024-04-09 20:52:54