N-(Phosphonomethyl)iminodiacetic acid
Chinese Name: Glyphosate-diacetic acid (Alias: N-(Phosphonomethyl)iminodiacetic acid; N-(Phosphocarboxymethyl)iminodiacetic acid)
English Name: N-(Phosphonomethyl)iminodiacetic acid (PMIDA)
Key Identifiers: CAS No. 5994-61-6; EINECS No. 227-824-5; Molecular Formula: C₅H₁₀NO₇P; Relative Molecular Mass: 227.11
N-(Phosphonomethyl)iminodiacetic acid is a white crystal or crystalline powder; its melting point is approximately 210–215℃ (with decomposition); density is about 1.792 g/cm³; solubility in water at 25℃ is around 10 g/L. It is soluble in alkalis and amines to form corresponding salts, insoluble in organic solvents like ethanol and acetone, and possesses weak acidity as well as certain complexation properties.
Main Applications and Industrial Chain
Core Application: It acts as a key intermediate for glyphosate production. Specifically, N-(Phosphonomethyl)iminodiacetic acid can be converted into glyphosate through oxidation reactions (e.g., using concentrated sulfuric acid as the oxidant).
Other Applications: It also serves as an organophosphorus intermediate and complexing agent in the fields of pesticides, pharmaceuticals, rubber, etc.
Typical Quality Specifications and Packaging
Specifications (for reference): Appearance: white crystalline powder; Assay: ≥ 98.0%; Loss on drying: ≤ 0.5%; Alkali-insoluble matter: ≤ 0.2%.
Packaging: Commonly packed in 25 kg bags with inner plastic lining and outer woven bag; 600 kg woven bags or ton bags are also available upon request.
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