About Nanjing Trust Chem Co., Ltd - Corrosion Inhibitor Supplier in China

Based in Nanjing, China, Nanjing Trust Chem Co., Ltd lists five active products in its catalogue. The products are Benzotriazole, Tolyltriazole, Sodium benzotriazole, Sodium tolyltriazole and Liquid benzotriazole, all classified under the corrosion inhibitor category. Each chemical is supplied in standard industrial forms such as solid powder or liquid solution, matching the typical product families for organic corrosion inhibitors. The company’s catalogue does not provide HS codes, so the products fall under the broader HS chapter 29 for organic chemicals. The supplier is recorded as an imported, harbor‑tier supplier in the trade platform.

The listed items serve as corrosion‑preventive agents in cooling‑water systems, metal surface treatment and printed‑circuit board manufacturing. Benzotriazole and its sodium salt are commonly used to protect copper and its alloys, while tolyltriazole variants are applied in aluminum and steel environments. Product specifications generally include purity levels of 98 % - 99 % for analytical or technical grade, and packaging options such as 25 kg drums or 500 L bulk containers. No additional company history, employee numbers or revenue figures are supplied in the source data.

Product Range and Specialties of Nanjing Trust Chem Co., Ltd

The catalogue’s five items cover both the free‑base and sodium‑salt forms of benzotriazole and tolyltriazole. In the corrosion‑inhibitor market, these chemicals are offered in grades ranging from technical (≈95 % purity) to analytical (≥99 % purity) and are evaluated by parameters such as water solubility, pH of aqueous solution and metal‑binding efficiency. Typical industry standards require a moisture content below 0.5 % for solid grades and a clear, non‑emulsified appearance for liquid formulations. Buyers often request a Certificate of Analysis that confirms purity, heavy‑metal limits (e.g., <10 ppm lead) and water content.

Trade and Export Information - Nanjing Trust Chem Co., Ltd

China is a major exporter of organic corrosion inhibitors, with shipments primarily destined for Southeast Asia, Europe and North America. The products fall under HS chapter 29, which customs authorities review for compliance with REACH registration in the EU and TSCA in the United States. Importers usually request documentation such as a Material Safety Data Sheet (MSDS), REACH‑SVHC declaration and, where applicable, ISO 9001 quality‑system certification from the supplier’s manufacturing site. Standard logistics involve 20‑ft or 40‑ft containers loaded in drums or bulk tanks, with Incoterms like FOB Nanjing or CIF destination port. Export controls in China require verification of end‑use for chemicals that can be used in metal‑working or electronics manufacturing.

Typical buyers include automotive OEMs, electronics assemblers, cooling‑system manufacturers and metal‑finishing firms that need reliable metal‑passivation agents. These industries commonly inspect batch‑to‑batch consistency through ICP‑OES analysis for residual metal content and UV‑Vis spectroscopy for purity verification.

Sourcing from Nanjing Trust Chem Co., Ltd - Buyer Guidance

When sourcing from Nanjing Trust Chem Co., Ltd, purchasers should request a recent Certificate of Analysis for each batch, confirming purity, moisture and heavy‑metal limits. An MSDS must be obtained to assess handling, storage and transport requirements, especially for the liquid benzotriazole which may be classified as hazardous for inhalation. Verify whether the supplier can provide REACH‑SVHC statements if the shipment is intended for the EU market, and ask for a copy of any ISO‑based quality‑system audit if available. Buyers typically specify packaging (e.g., 25 kg drums for solids, 200 L IBC for liquids) and confirm that the product meets the required grade (technical vs. analytical) before confirming order quantities.

Typical minimum order quantities range from 500 kg for solid grades to 1 m³ for liquid formulations, with lead times of 15‑30 days after receipt of a purchase order and required documentation. Conduct a pre‑shipment inspection or third‑party lab test if the first order is critical, as this provides an additional verification layer beyond the supplier’s COA.

What corrosion‑inhibitor products does Nanjing Trust Chem Co., Ltd offer?

The supplier lists five products: Benzotriazole, Tolyltriazole, Sodium benzotriazole, Sodium tolyltriazole and Liquid benzotriazole, all used for metal passivation.

Are HS codes available for these chemicals?

No HS codes are provided in the catalogue; the items fall under the general HS chapter 29 for organic chemicals.

What purity levels are typical for these inhibitors?

Industry practice distinguishes technical grade (≈95 % purity) and analytical grade (≥99 % purity); buyers should request a Certificate of Analysis to confirm the exact level.

Which documents should a buyer request before purchasing?

A current Certificate of Analysis, Material Safety Data Sheet, REACH‑SVHC declaration for EU shipments, and any available ISO 9001 quality‑system audit report.

What packaging formats are commonly used for these products?

Solid benzotriazole and its sodium salts are usually packed in 25 kg steel drums or 1 ton bags, while the liquid form is supplied in 200 L intermediate bulk containers or 500 L drums.

Which markets typically import corrosion inhibitors from China?

Key import regions include Southeast Asia, the European Union, and North America, especially automotive, electronics and cooling‑system manufacturers.

What are the usual lead times and minimum order quantities?

Lead times are generally 15‑30 days after order confirmation; minimum orders are about 500 kg for solid grades and 1 m³ for liquid formulations.

Is any specific certification required for these chemicals?

Buyers often require REACH registration for EU destinations and may ask for ISO 9001 certification, though the supplier’s own certifications are not listed in the provided facts.