Overview
Nitrobenzoic acid is an organic compound derived from benzoic acid with a nitro group substitution. It exists in three isomeric forms: ortho-, meta-, and para-nitrobenzoic acid, with the para-isomer being the most commonly used in industrial applications. The compound is primarily utilized as an intermediate in the synthesis of pharmaceuticals, dyes, and other fine chemicals. Its chemical reactivity and stability make it a valuable building block in organic chemistry.
Physical and Chemical Properties
Nitrobenzoic acid typically appears as a yellowish crystalline powder with a distinct odor. It has a density of approximately 1.55 g/cm³ and a melting point ranging from 237-240°C. The compound decomposes before reaching its boiling point. It is soluble in hot water, ethanol, and ether but only slightly soluble in cold water. The nitro group enhances its reactivity, making it useful in various chemical reactions, including reductions and substitutions. The compound's stability under normal conditions makes it suitable for storage and transport, though it should be kept away from strong oxidizing agents and reducing agents to prevent unwanted reactions.
Main Applications
Nitrobenzoic acid is widely employed in the pharmaceutical industry as an intermediate for synthesizing drugs such as analgesics and antibiotics. In the dye industry, it serves as a precursor for azo dyes and other colorants. Its role in chemical synthesis includes acting as a reagent for introducing nitro groups into other molecules, facilitating the production of more complex compounds. Additionally, nitrobenzoic acid is used in laboratories as a standard or reference material for analytical purposes. Its versatility and reactivity make it indispensable in research and industrial settings.
Safety and Storage
Handling nitrobenzoic acid requires caution due to its potential health hazards. It is harmful if swallowed and can cause skin and eye irritation. Proper personal protective equipment (PPE), such as gloves and goggles, should be worn when working with this compound. Adequate ventilation is essential to avoid inhalation of dust or vapors. Storage should be in a cool, dry, and well-ventilated area, away from heat sources and incompatible substances like strong oxidizers. Containers must be tightly sealed to prevent moisture absorption and contamination.
B2B Procurement Guide
When procuring nitrobenzoic acid, buyers should verify the CAS number (62-23-7) and specify the required purity level, typically ranging from 98% to 99.5%. Bulk purchases often qualify for discounted rates, so it's advisable to negotiate prices based on order volume. Reputable suppliers should provide material safety data sheets (MSDS) and certificates of analysis (CoA) to ensure product quality and compliance with safety standards. Consider the logistics and storage requirements when planning procurement. Reliable suppliers with a track record of timely delivery and consistent quality are preferred for long-term partnerships.
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