N Methyl 1 3 Diaminopropane Supplier Quality Control

n methyl 1 3 diaminopropane (also referred to as n methyl 1 3 propanediamine or in its derivative form as n coco 1 3 diaminopropane) is a crucial chemical intermediate that requires stringent quality control measures. This article details the comprehensive quality assurance protocols for these compounds.

Quality Control Standards for n methyl 1 3 diaminopropane

• Pharmaceutical grade n methyl 1 3 diaminopropane must meet ≥99.5% purity standards
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• Industrial grade material maintains ≥98.0% minimum purity requirements
• Moisture content strictly controlled at ≤0.3% to prevent degradation
• Color specifications maintained at ≤30 APHA for premium grades
• Density consistently falls within 0.87±0.02 g/cm³ at 25°C

Specification:

Analytical Testing Methods for n methyl 1 3 propanediamine

• GC-MS analysis confirms molecular identity with 99.9% accuracy
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  • HPLC methods achieve 0.01% detection limits for organic impurities
  • Karl Fischer titration measures water content to 10ppm precision
  • ICP-MS detects metal contaminants below 0.1ppm concentration
  • Refractive index must be 1.442-1.446 at 20°C for approval
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Packaging and Storage of n coco 1 3 diaminopropane

• Standard 165kg epoxy-lined steel drums prevent contamination
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  • Nitrogen blanketing maintains n coco 1 3 diaminopropanestability
  • Recommended storage temperature range: 15-25°C
  • Maximum shelf life of 24 months in original sealed containers
  • Secondary containment required for bulk storage installations
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N Methyl 1 3 Diaminopropane FAQs

Q: What are the primary industrial applications of N methyl 1 3 diaminopropane?

A: N methyl 1 3 diaminopropane is widely used as a curing agent in epoxy resin systems, accelerating cross-linking reactions to improve mechanical properties. It also serves as an intermediate in surfactant synthesis for personal care products, a corrosion inhibitor in metalworking fluids, and a ligand in chelating agent production, leveraging its dual amine functionality for versatile reactivity.

Q: How does N methyl 1 3 propanediamine differ from other diamine compounds in polymerization?

A: Compared to unsubstituted diamines, N methyl 1 3 propanediamine features a methyl group that enhances steric hindrance, resulting in slower gelation kinetics in polyurethanes. This allows more processing time for complex moldings while maintaining final product strength. Its lower volatility than ethyl-substituted analogs also reduces VOC emissions in industrial applications.

Q: What safety precautions should be taken when handling N coco 1 3 diaminopropane?

A: N coco 1 3 diaminopropane is a viscous amine derived from coconut oil, potentially causing skin irritation and allergic reactions. Operators must use gloves and goggles; ensure ventilation to avoid inhalation of vapors. Store in sealed containers away from moisture, as its hygroscopic nature may lead to degradation. In spills, neutralize with dilute acid and dispose per local hazardous waste regulations.

Q: Can N methyl 1 3 diaminopropane be used in water-based coatings?

A: Yes, N methyl 1 3 diaminopropane is water-soluble, making it suitable for water-based epoxy coatings. Its amine groups react with epoxy resins under alkaline conditions, forming stable films with improved corrosion resistance. However, pH control is critical to prevent amine salt formation, which may affect film clarity and drying time.

Q: How do regulatory standards impact the use of N methyl 1 3 propanediamine?

A: N methyl 1 3 propanediamine (CAS 109-76-2) is regulated under REACH in the EU, requiring registration for industrial use, and falls under OSHA’s Hazard Communication Standard in the U.S. as a skin/respiratory irritant (H315/H335). Exporters must comply with UN 2734 classification for transport as a corrosive liquid, ensuring proper labeling and SDS documentation for safe distribution.

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