Overview
Sodium 2-nitrophenolate is an organic sodium salt derived from 2-nitrophenol. It is widely used as a plant growth regulator in agriculture due to its ability to enhance nutrient absorption and stimulate crop yield. The compound is also employed as an intermediate in pharmaceutical synthesis and dye manufacturing. Industrially, it is produced through the nitration of phenol followed by neutralization with sodium hydroxide. Its water solubility and stability make it suitable for formulations in liquid or solid agrochemical products.
Physical and Chemical Properties
The compound appears as a yellow to orange crystalline powder with moderate solubility in water (approximately 50 g/L at 20°C) and limited solubility in organic solvents like ethanol. It decomposes at temperatures above 270°C, releasing nitrogen oxides. Chemically, sodium 2-nitrophenolate is stable under normal conditions but may react with strong acids or oxidizing agents. Its nitro group (-NO2) and phenolate ion contribute to its reactivity in synthesis applications, such as azo dye production or pharmaceutical intermediates.
Main Applications
In agriculture, sodium 2-nitrophenolate is a key component in plant growth regulators, often blended with other nitrophenolates to improve photosynthesis and stress resistance in crops. It is particularly effective for cereals, fruits, and vegetables. The pharmaceutical industry uses it as a precursor for antibiotics and antiseptics. Additionally, its role in dye synthesis includes serving as an intermediate for azo dyes, which are applied in textiles and inks. Smaller quantities are utilized in research laboratories for organic synthesis studies.
Safety and Storage
As a nitrophenol derivative, sodium 2-nitrophenolate requires careful handling. It may cause skin irritation or respiratory discomfort upon exposure. Always use gloves, goggles, and protective clothing in workplaces. Spills should be contained with inert absorbents and disposed of as hazardous waste. Storage recommendations include keeping the compound in tightly sealed containers, away from heat sources and incompatible materials like strong acids. Shelf life typically exceeds two years when stored under dry, cool conditions (below 25°C).
B2B Procurement Guide
For bulk procurement, prioritize suppliers with ISO or GMP certifications to ensure consistent quality. Request certificates of analysis (CoA) to verify purity (industrial grade usually ≥98%). Packaging options include 25 kg fiber drums or customized quantities for large-scale buyers. Logistics planning should account for its non-hazardous transport classification (check local regulations). Sample testing is advised for new suppliers. Price negotiation is possible for orders exceeding 1 ton, with discounts commonly ranging from 5–15%.
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