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ZHONGXI Testing has obtained inspection qualification certifications from multiple countries and regions worldwide. We possess a senior testing team and advanced testing methods, providing independent, impartial, and professional third-party verification services for global carbon projects.
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If you are searching for niobium chloride (NbCl₅) testing, you likely need to verify purity, identify trace impurities, or ensure batch-to-batch consistency for advanced applications such as semiconductor precursor materials, catalyst synthesis, or optical coating production. We understand that precise characterization of NbCl₅ is critical to your R&D and quality control workflows. Our laboratory offers a full suite of analytical solutions tailored specifically to niobium chloride – from ultra-trace elemental analysis to structural and morphological evaluation.
We provide comprehensive testing for both solid and solution-based niobium chloride, covering parameters that directly impact material performance and process reliability. Our capabilities include:
- Purity assay (≥99.99% to 99.9999+%) via ICP-MS and inert gas fusion.
- Trace metallic impurities (Al, Fe, Ta, Ti, W, Mo, etc.) down to sub-ppb levels using HR-ICP-MS.
- Oxygen, nitrogen, carbon, and hydrogen content by carrier gas hot extraction (LECO).
- Chlorine stoichiometry verification through ion chromatography after hydrolysis.
- Crystalline phase identification (XRD) and particle morphology (SEM-EDS).
- Moisture sensitivity assessment and hydrolysis by-product analysis (HCl, Nb oxychlorides).
- Trace anion analysis (Cl⁻, NO₃⁻, SO₄²⁻) in hydrolyzed residues.

We do not simply run routine tests. Our lab is equipped to handle the most demanding specifications for niobium chloride used in atomic layer deposition (ALD), high-purity niobium metal production, and pharmaceutical-grade catalysts. Examples of our advanced capabilities:
- Detection limits for metallic impurities: 0.01 – 0.1 ppb (w/w) on a Thermo Fisher iCAP TQ ICP-MS/MS.
- Matrix-matched calibration with reverse aqua regia digestion in sealed vessels to prevent analyte loss.
- Quantification of oxygen in NbCl₅ with an accuracy of ±3% relative down to 5 ppm – essential for controlling oxychloride formation.
- Dynamic vapor sorption (DVS) + Raman spectroscopy to correlate moisture uptake with structural changes.
- Chlorine purity verification by difference (100% - total impurities - oxygen - carbon - nitrogen) with uncertainty < 0.02% absolute.
We are not a general analytical lab – niobium halide chemistry is our specialty. Our advantages are built on decades of experience handling air- and moisture-sensitive compounds and delivering actionable data under tight deadlines.
➤ Dedicated glovebox & Schlenk line sample preparation – Every NbCl₅ sample is handled strictly under inert atmosphere (Ar, <0.1 ppm O₂/H₂O) to prevent hydrolysis before analysis. This ensures that test results reflect the original material, not artefacts.
➤ ISO/IEC 17025:2017 accredited methods for halogenated metal compounds, with participation in cross‑validation rounds with leading semiconductor materials suppliers.
➤ Rapid turnaround: 3‑5 business days for full elemental and purity profiles (expedited 48‑hour service available). We provide digital certificates with raw data, uncertainty budgets, and chromatograms.
➤ One‑on‑one technical consultation – Our analytical chemists help you interpret results, troubleshoot inconsistency, and optimize your synthesis or storage process for NbCl₅.
➤ Global shipping compliance for dangerous goods (UN 3260, corrosive solid, acidic, inorganic). We supply pre‑certified packaging and can coordinate safe sample transport from your facility.
Whether you are qualifying a new supplier, investigating contamination in a production batch, or validating a high‑purity grade for next‑generation electronics, we deliver defensible, high‑resolution data for every niobium chloride sample. Contact our halide analysis team to discuss your specifications and receive a tailored test plan and quote.