Overview
4-Nitrosophenol is an organic compound belonging to the nitrosophenol family. It is primarily used as an intermediate in the synthesis of dyes, pigments, and other specialty chemicals. The compound is characterized by its yellow to brown crystalline appearance and its sensitivity to light and oxidizing agents. In industrial settings, 4-nitrosophenol is valued for its role in producing azo dyes, which are widely used in textiles, inks, and plastics. Its reactivity makes it a versatile building block in organic synthesis, though it requires careful handling due to its potential health hazards.
Physical and Chemical Properties
4-Nitrosophenol has a molecular weight of 123.11 g/mol and typically appears as a yellow to brown crystalline powder. It melts at 126-128 °C and decomposes upon further heating rather than boiling. The compound is soluble in organic solvents like ethanol and ether but only slightly soluble in water. Key chemical properties include its photosensitivity and reactivity with strong oxidizers. These characteristics necessitate careful storage and handling to prevent degradation or hazardous reactions. Its nitroso group (–NO) is responsible for its role in various chemical transformations, particularly in dye synthesis.
Main Applications
The primary use of 4-nitrosophenol is as an intermediate in the production of dyes and pigments, especially azo dyes. These dyes are essential in industries such as textiles, printing, and plastics, where vibrant and stable colors are required. Beyond dye manufacturing, 4-nitrosophenol serves as an analytical reagent in chemical testing and research. It is also employed in organic synthesis to introduce nitroso groups into other molecules, enabling the creation of more complex chemical structures for pharmaceuticals and agrochemicals.
Safety and Storage
4-Nitrosophenol poses several safety risks, including skin and eye irritation and potential harm if swallowed. Proper personal protective equipment (PPE), such as gloves and goggles, is essential when handling this chemical. Storage requires a cool, dry, and well-ventilated area, away from direct light and oxidizing agents. Containers should be tightly sealed to prevent moisture absorption and degradation. A Safety Data Sheet (SDS) should always be consulted for detailed handling and emergency measures.
B2B Procurement Guide
When procuring 4-nitrosophenol, buyers should prioritize suppliers who provide clear documentation of CAS number (104-91-6) and purity levels (typically 97-99%). Batch-specific certificates of analysis (CoA) are recommended to ensure quality consistency. Price varies based on purity and order volume, with bulk purchases often attracting discounts. Buyers should also confirm logistics and storage capabilities, as improper transport can compromise product integrity. Partnering with reputable suppliers with a track record in chemical distribution minimizes risks.
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