Overview
4-Aminoazobenzene (4-AAB) is a synthetic azo compound primarily used as an intermediate in the production of dyes and pigments. Detection of 4-AAB is essential in various industrial and research applications to ensure compliance with safety and quality standards. The compound is known for its vibrant color and chemical stability, making it a valuable component in the textile and printing industries. Detection methods for 4-AAB typically involve chromatography (HPLC, TLC) and spectroscopic techniques (UV-Vis, IR). These methods are chosen for their accuracy and sensitivity in identifying trace amounts of the compound. Regulatory bodies often require rigorous testing to monitor 4-AAB levels due to its potential health risks.
Physical and Chemical Properties
4-Aminoazobenzene appears as a yellow to orange crystalline powder with a molecular weight of 197.24 g/mol. It has a melting point of 126-128°C and is soluble in organic solvents like ethanol and benzene but only slightly soluble in water. The compound is photo-sensitive, meaning it can degrade under prolonged exposure to light, which is a critical consideration for storage and handling. Chemically, 4-AAB is an azo dye intermediate, characterized by the presence of an azo group (-N=N-) linking two aromatic rings. This structure contributes to its vibrant color and reactivity. The compound's stability under normal conditions makes it suitable for various industrial applications, though its potential carcinogenicity necessitates careful handling.
Main Applications
The primary use of 4-aminoazobenzene is in the manufacture of dyes and pigments, particularly for textiles, inks, and plastics. Its vibrant color and stability make it a preferred choice for producing bright, long-lasting hues. Additionally, 4-AAB serves as a reagent in chemical research, especially in studies involving azo compounds and their derivatives. In the pharmaceutical industry, 4-AAB is sometimes used as a model compound for testing the efficacy of detoxification processes. Its detection is crucial in ensuring that residual amounts in finished products are within safe limits, as per regulatory guidelines. The compound's applications extend to academic research, where it is used to study photochemical reactions and azo dye metabolism.
Safety and Storage
Handling 4-aminoazobenzene requires strict safety measures due to its potential health hazards. The compound is a suspected carcinogen and can cause skin and eye irritation upon contact. Personal protective equipment (PPE), including gloves and goggles, is mandatory when working with 4-AAB. Proper ventilation is also essential to avoid inhalation of dust or vapors. Storage conditions for 4-AAB should include a cool, dry environment away from direct light and moisture. The compound should be kept in tightly sealed containers to prevent degradation and contamination. Safety data sheets (SDS) provided by suppliers must be reviewed to ensure compliance with local and international safety regulations.
B2B Procurement Guide
When procuring 4-aminoazobenzene for industrial or research purposes, buyers should prioritize suppliers who provide certified purity levels and detailed safety data sheets (SDS). The reference price range is approximately $50-$200 per gram, depending on purity and supplier reliability. Bulk purchases may offer cost savings, but quality should never be compromised. Procurement professionals should verify the supplier's compliance with regulatory standards, such as REACH or OSHA, to ensure the product meets safety and environmental requirements. Additionally, consider the supplier's logistics capabilities, including packaging and shipping conditions, to prevent degradation during transit. Establishing long-term relationships with reputable suppliers can ensure consistent quality and reliable delivery.
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