About Qihang Chemical Industrial Co., Ltd. - Sodium Silicate & Molecular Sieves Supplier in China

Qihang Chemical Industrial Co., Ltd. is registered in China and currently lists five active products in its catalogue. The product list includes Sodium Silicate Powder, Liquid Sodium Silicate, Solid Sodium Silicate, APSM (Activated Poly Sodium Metasilicate) and a family of Molecular Sieves covering 3A, 4A, 5A, 13X and PSA types. Each entry is recorded under the imported supplier tier and is classified with a harbor trust tier in the platform. No additional product categories or HS‑code details are supplied in the source data.

The listed sodium silicate forms cover the three common physical states used in industry: powder, solid granules and aqueous solution. APSM is a high‑purity metasilicate often specified by its SiO₂/Na₂O ratio. The molecular sieves are presented as a set of zeolitic adsorbents distinguished by pore size - 3A (0.3 nm), 4A (0.4 nm), 5A (0.5 nm), 13X (approximately 1 nm) and PSA blends - which are standard in drying, catalysis and gas separation applications. All five items fall within the chemical manufacturing and mineral processing sectors.

Product Range and Specialties of Qihang Chemical Industrial Co., Ltd.

The catalogue focuses on sodium silicate chemistry and zeolitic molecular sieves. Sodium silicate powder is typically supplied with a purity of 99 % SiO₂ and particle sizes ranging from 50 µm to 200 µm, while solid sodium silicate granules are often graded by bulk density (1.2 - 1.4 t/m³) and moisture content below 1 %. Liquid sodium silicate solutions are expressed by their SiO₂/Na₂O weight ratio, commonly 3.0, 3.5 or 4.0, with total solids between 30 % and 45 % by weight. APSM is usually defined by a silica modulus of 1.0 - 1.2 and a minimum purity of 99.5 %. In the molecular sieve segment, 3A, 4A and 5A are calcium or sodium‑based zeolites with adsorption capacities measured in mg H₂O/g at 25 °C, while 13X is a synthetic zeolite with a higher surface area (≈800 m²/g). PSA (Pressure Swing Adsorption) blends combine these types for air separation. Buyers typically request data sheets that list pore size distribution, thermal stability (up to 300 °C for 13X) and regeneration conditions.

Trade and Export Information - Qihang Chemical Industrial Co., Ltd.

China is a major exporter of sodium silicate and zeolitic adsorbents, with shipments directed to Southeast Asia, the European Union, the United States and the Middle East. The HS‑code chapter for inorganic chemicals (2838) covers sodium silicate products, while molecular sieves fall under HS 9025 for mineral and chemical filters. Importers usually require compliance with REACH (EU) or TSCA (US) and may request ISO 9001 quality‑management certification from the supplier. Standard packaging includes 25 kg polypropylene bags for powders and granules, 200 L IBC drums for liquid solutions, and 20 ft or 40 ft containers for bulk molecular sieves, sealed with moisture‑barrier liners. Typical Incoterms for these bulk chemicals are FOB or CIF, with freight handled by bulk freight forwarders familiar with hazardous‑material documentation. Chinese exporters often provide a Certificate of Origin and a Material Safety Data Sheet (MSDS) as part of the export packet. Buyers should verify that the supplier can meet the destination country’s customs classification and any anti‑dumping duties that may apply to inorganic chemicals.

Sourcing from Qihang Chemical Industrial Co., Ltd. - Buyer Guidance

When evaluating Qihang Chemical Industrial Co., Ltd., request the latest product data sheets that specify purity, particle‑size distribution (for powders), SiO₂/Na₂O ratio (for liquids) and pore‑size specifications (for molecular sieves). Ask for a recent third‑party laboratory analysis report, such as an ICP‑OES or XRF assay, to confirm elemental composition and moisture content. Buyers should also obtain the supplier’s REACH registration status or equivalent compliance documents, as well as a copy of the ISO 9001 certificate if available. Verify the packaging dimensions and weight per unit to calculate freight costs, and confirm the minimum order quantity - many Chinese chemical exporters set MOQs at one 20‑ft container for bulk powders but may accept smaller pallets for liquid silicate. Clarify lead times, which typically range from 2 weeks (sample) to 6 - 8 weeks for full container loads, and confirm the preferred Incoterm before finalising the purchase order.

What purity levels are available for the Sodium Silicate Powder listed by Qihang?

The supplier lists sodium silicate powder with a typical purity of 99 % SiO₂. Buyers should request a recent assay report to verify the exact figure for the batch they intend to purchase.

Does Qihang provide Material Safety Data Sheets for its chemical products?

Yes, standard practice for chemical exporters from China includes providing an MSDS for each product, detailing hazards, handling instructions and first‑aid measures.

Which pore sizes correspond to the Molecular Sieve types offered?

3A has a pore diameter of 0.3 nm, 4A is 0.4 nm, 5A is 0.5 nm, and 13X is approximately 1.0 nm. PSA blends combine these pores for specific gas‑separation applications.

What documentation should a buyer request before ordering Liquid Sodium Silicate?

Buyers should ask for a product data sheet showing the SiO₂/Na₂O ratio, solids content, a recent laboratory analysis, REACH compliance confirmation and the MSDS.

Are there standard container sizes used for shipping the Molecular Sieves?

Molecular sieves are commonly packed in 25 kg polypropylene bags and loaded into 20 ft or 40 ft containers, with moisture‑barrier liners to prevent humidity absorption during transit.

What are typical lead times for a new order of APSM from this supplier?

Lead times for APSM generally range from 2 weeks for a sample shipment to 6 - 8 weeks for a full container load, depending on production scheduling and export documentation preparation.

Which certifications are usually required for importing sodium silicate into the EU?

Importers typically require REACH registration, an ISO 9001 quality‑management certificate from the supplier, and a Certificate of Origin. These should be confirmed with Qihang before shipment.

Can the supplier provide smaller test quantities for evaluation?

Chinese chemical exporters often supply trial quantities ranging from 5 kg to 25 kg, allowing buyers to conduct performance testing before committing to larger volumes.