About Nanjing Hbl International Co., Ltd. - Chemicals & Allied Products Supplier in China

Nanjing Hbl International Co., Ltd. operates out of China and currently lists five active products in its catalogue. The company classifies its offerings under the Chemicals & Allied Products and Other - Fabric and Raw Material categories. Its product line includes Monoisopropanolamine, Diisopropanolamine, Triisopropanolamine, a Polyether/Polyester Polyol, and a generic Polyol entry. Monoisopropanolamine is recorded under HS code 2922.11 and is described as industrial‑grade C3H9NO. The two di‑ and tri‑isopropanolamines share HS code 2922.19 and are identified by their respective molecular formulas C6H15NO2 and C9H21NO3 (CAS 122‑20‑3). The polyol products fall under HS code 3907.20 and are noted as hydroxyl‑terminated polymers used in polyurethane formulations.

The polyether and polyester variants are presented as hydroxyl‑terminated polymers suitable for flexible and rigid foam applications. The catalogue does not specify a separate HS code for the generic Polyol entry, indicating it may be covered by the broader 3907.20 classification. All listed chemicals are industrial grade, implying typical purity levels above 98 % and compliance with standard material safety data sheet (SDS) requirements. No additional certifications such as ISO or REACH are listed for the supplier, so buyers should verify regulatory compliance independently. The product mix reflects a focus on nitrogen‑containing amines and polymer precursors commonly sourced for surfactants, corrosion inhibitors, and polyurethane production.

Product Range and Specialties of Nanjing Hbl International Co., Ltd.

Monoisopropanolamine, Diisopropanolamine and Triisopropanolamine are aliphatic amines used as emulsifiers, pH regulators and corrosion‑inhibiting agents in paints, detergents and oilfield chemicals. In the global market these amines are typically supplied with a purity of 98‑99.5 % and a water content below 0.5 %, and buyers often request a Certificate of Analysis confirming these parameters. Common specifications include a flash point above 100 °C and a pH of 10‑12 in a 10 % aqueous solution. Polyether and polyester polyols are hydroxyl‑terminated polymers characterized by a hydroxyl number usually ranging from 200 to 500 mg KOH g⁻¹ and a functionality of 2‑4, which determine the rigidity of the resulting polyurethane. Industry practice differentiates polyols by viscosity (e.g., 5 000 - 30 000 cPs at 25 °C) and by the type of backbone, with polyether polyols offering higher flexibility and polyester polyols providing better tensile strength.

The generic Polyol entry likely refers to a standard polyester or polyether polyol that can be blended to achieve target physical properties in foam formulations. Buyers usually request a detailed data sheet listing hydroxyl number, viscosity, and acid value to ensure compatibility with their formulation requirements.

Trade and Export Information - Nanjing Hbl International Co., Ltd.

China is a leading exporter of amine chemicals and polyurethane precursors, with the HS 2922 chapter covering aliphatic amines and HS 3907 covering polyols. Major import destinations for these products include the United States, the European Union, and Southeast Asian markets such as Vietnam and Thailand. Importers typically require compliance with REACH registration for the EU and TSCA for the United States, as well as standard safety documentation including SDS and COA. Shipping is commonly performed in 20‑foot or 40‑foot containers using drums of 200 L or bulk tanker loads, and the prevalent Incoterms are FOB Shanghai or CIF major ports. Exporters from China often hold ISO 9001 quality management certification, although this specific supplier does not list such certifications in the provided facts.

Regulatory inspection for HS 2922 chemicals may involve customs verification of chemical safety data and, where applicable, anti‑dumping duties. Polyol shipments under HS 3907 are subject to packaging standards that limit moisture ingress, with pallets or bulk containers sealed to preserve polymer integrity. Buyers usually verify that the supplier can provide REACH‑registered dossiers and, if required, third‑party lab test reports for hydroxyl number and viscosity.

Sourcing from Nanjing Hbl International Co., Ltd. - Buyer Guidance

Prospective buyers should request a current Certificate of Analysis, Material Safety Data Sheet, and, for EU shipments, a REACH registration number for each amine or polyol. Verifying the hydroxyl number and viscosity for polyols, and the purity and water content for amines, helps confirm that the product meets formulation specifications. It is advisable to obtain a sample of at least 5 kg for laboratory testing before placing a full order, especially when custom grades are required. Confirming packaging details - such as 200 L drums for liquids or bulk tanker specifications - and the supplier’s ability to meet standard lead times of 30‑45 days will reduce supply‑chain risk.

Since the supplier’s catalogue does not list specific certifications, buyers should ask the supplier to provide any ISO, GMP or other quality system certificates that are applicable to their procurement policies. Clarifying the minimum order quantity, which is often set at 500 kg for bulk chemicals, and arranging payment terms in line with standard trade practices will facilitate a smoother transaction.

What are the HS codes for the amine products listed by Nanjing Hbl International?

Monoisopropanolamine is classified under HS 2922.11, while Diisopropanolamine and Triisopropanolamine are both listed under HS 2922.19, which covers other aliphatic amines.

Which specifications should I verify for the isopropanolamines before purchase?

Buyers typically check purity (≥ 98 %), water content (≤ 0.5 %), flash point (≥ 100 °C) and obtain a Certificate of Analysis and SDS that confirm these parameters.

What key properties define the polyols offered in the catalogue?

The polyether/polyester polyols are hydroxyl‑terminated polymers with a hydroxyl number generally between 200 and 500 mg KOH g⁻¹, functionality of 2‑4, and viscosity ranging from 5 000 to 30 000 cPs at 25 °C.

How are the polyol products typically packaged for export?

Polyols are commonly shipped in 200 L steel drums or bulk tanker containers, packed on pallets for 20‑foot or 40‑foot containers to protect against moisture and contamination.

Which certifications are commonly required for importing these chemicals into the EU and US?

Importers usually require REACH registration for the EU and TSCA compliance for the US, together with an up‑to‑date SDS, COA and, where applicable, ISO 9001 or GMP certificates from the supplier.

What is the usual lead time and minimum order quantity for these chemicals from China?

Standard lead times are 30‑45 days from order confirmation, and minimum order quantities are often set at 500 kg for bulk amines and polyols, though smaller sample quantities can be arranged.

Can I request a sample before placing a full order, and what size is typical?

Suppliers generally provide a sample of 5 kg or a 5‑liter drum for laboratory evaluation, and buyers should request accompanying test reports to verify purity and polymer characteristics.