The precise identification of hexanedioic acid—commonly known as adipic acid—is critical for industries reliant on its role in producing nylon, polyurethanes, and food additives. With a adipic acid molecular weight of 146.14 g/mol, a linear six-carbon backbone, and the adipic acid iupac name reflecting its dual carboxylic acid groups, adipic acid’s chemical identity is tightly linked to its performance in bulk applications. This article explores how spectroscopic methods like FT-IR and NMR verify its structure, ensure compliance with CAS No. 124-04-9 standards, and uphold quality in wholesale chemical supply chains.

ადიპიური მჟავა Molecular Weight and Structural Basics 

Adipic acid, systematically named hexanedioic acid under IUPAC conventions, is a straight-chain dicarboxylic acid with the formula C₆H₁₀O₄. Its adipic acid molecular weight of 146.14 g/mol corresponds to a six-carbon chain terminated by two carboxylic acid groups (-COOH), a structure central to its reactivity in polymerization. The adipic acid cas no uniquely identifies this compound in global databases, ensuring traceability in safety documentation and bulk transactions. For wholesalers, confirming these parameters is non-negotiable: even minor deviations in molecular weight or impurities can compromise nylon 6,6 synthesis or food-grade applications.

Confirming Functional Groups in Adipic Acid Cas No

Fourier-Transform Infrared (FT-IR) spectroscopy is a frontline tool for verifying adipic acid’s functional groups. The spectrum reveals sharp absorption bands at ~2500–3300 cm⁻¹ (O-H stretching in carboxylic acids) and ~1700 cm⁻¹ (C=O stretching), confirming the presence of two -COOH groups critical to its adipic acid iupac name. Additionally, peaks near 1400 cm⁻¹ and 1250 cm⁻¹ correspond to C-O and C-C vibrations, aligning with its six-carbon chain. For bulk buyers, FT-IR provides rapid, non-destructive validation of  adipic acid cas no compliance, ensuring shipments meet polymerization-grade purity (>99.5%). This is vital for manufacturers sourcing adipic acid for high-strength nylon resins or plasticizers.

Mapping the Carbon Chain of Adipic Acid Iupac Name

Nuclear Magnetic Resonance (NMR) spectroscopy offers deeper structural insights. In the ¹H NMR spectrum, adipic acid’s methylene protons (-CH₂-) appear as a triplet at ~1.6 ppm (central CH₂ groups) and a multiplet at ~2.3 ppm (protons adjacent to -COOH). The ¹³C NMR spectrum shows peaks at ~178 ppm (carbonyl carbons) and 24–34 ppm (aliphatic carbons), corroborating the adipic acid molecular weight and linear structure implied by adipic acid iupac name . For wholesalers, NMR is indispensable when disputes arise over batch purity—for example, detecting trace cyclohexanol (a common synthesis byproduct) that could destabilize nylon production.

ადიპიური მჟავა Cas No in Quality Assurance for Bulk Adipic Acid 

The adipic acid cas no serves as a universal identifier for adipic acid across safety datasheets, shipping manifests, and regulatory filings. In wholesale markets, suppliers must align spectroscopic data with this CAS number to avoid mislabeling risks. For instance, adipic acid’s FT-IR profile differs markedly from shorter-chain dicarboxylic acids like succinic acid (CAS No. 110-15-6), which lacks the six-carbon backbone. Automated systems in warehouses often cross-reference CAS numbers with spectral libraries to authenticate bulk shipments, ensuring compliance with REACH or TSCA regulations. This dual verification—structural and regulatory—protects buyers from costly recalls or production halts.

Challenges in Spectroscopic Identification of Industrial-Grade Adipic Acid Molecular Weight

While spectroscopy is robust, industrial-grade adipic acid often contains additives (e.g., antioxidants) or moisture that skew results. For example, water contamination broadens O-H peaks in FT-IR, complicating carboxylic acid confirmation. Similarly, residual monomers in recycled adipic acid may alter NMR peak ratios. Wholesalers mitigate these issues by demanding Certificates of Analysis (CoA) that detail  adipic acid molecular weight, moisture content, and impurity thresholds. Advanced labs employ hyphenated techniques like LC-NMR to isolate and identify contaminants, ensuring even bulk lots meet the stringent specs required for automotive or textile applications.

FAQ:Addressing Key Questions About Adipic Acid Iupac Name

How does adipic acid molecular weight aid in identifying adipic acid? 

The adipic acid molecular weight of 146.14 g/mol serves as a fingerprint. Mass spectrometry cross-checks this value, distinguishing adipic acid from similar compounds like glutaric acid (132.12 g/mol) or pimelic acid (160.17 g/mol).

Why is the adipic acid iupac name important for spectroscopic analysis?

The adipic acid iupac name specifies a six-carbon chain with two carboxylic acids. NMR and FT-IR data must match this structure to confirm identity, ensuring compatibility with industrial processes like nylon synthesis.

How is the adipic acid cas no used in industrial quality control? 

Adipic acid cas no links spectroscopic data to regulatory and safety records. Automated systems use this number to pull reference spectra, verifying batches before approval for bulk shipping.

What challenges arise when analyzing bulk adipic acid molecular weight spectroscopically?

There is not a simple linear relationship between the adipic acid molecular weight of adipic acid and its spectral characteristics, which may be affected by various factors such as molecular structure and aggregation state.

How to distinguish adipic acid molecular weight ?

After ionizing the adipic acid sample, it is separated and detected in a mass spectrometer according to the mass-to-charge ratio of the ions to obtain a mass spectrum. The mass-to-charge ratio of the molecular ion peak of adipic acid corresponds to adipic acid molecular weight. By comparing it with the standard mass spectrometry data, the molecular weight of adipic acid can be accurately determined.

From polymerization plants to food additive factories, the spectroscopic verification of hexanedioic acid ensures that bulk buyers receive material true to its adipic acid iupac name ,adipic acid molecular weight , and  adipic acid cas no . In an era of complex supply chains and sustainability mandates, these techniques are the bedrock of trust and efficiency in global chemical commerce.