About Luoyang Hanyi Chemical Co., Ltd. - Chemicals & Allied Products Supplier in China

China‑based Luoyang Hanyi Chemical Co., Ltd. lists five distinct chemical products in its catalogue. The company’s active product count of 5 includes DSD acid, 4,4‑dinitrostilbene‑2,2‑disulfonic acid, P‑nitrotoluene‑o‑sulfonic acid, sulfanilic acid and 2‑amino‑1,4‑benzenedisulfonic acid. Each entry falls under the broader “Chemicals & Allied Products” category and is presented without additional HS‑code detail in the source data. The supplier is classified in the “harbor” trust tier, indicating a moderate level of verification within the platform. The product list reflects a focus on aromatic sulfonic and nitro‑substituted acids used in dyes, intermediates and specialty applications.

Product Range and Specialties of Luoyang Hanyi Chemical Co., Ltd.

The catalogue comprises five aromatic sulfonic acids and nitro‑substituted compounds. In the chemical trade, DSD acid (often a sulfonated diphenyl ether) is supplied at ≥98 % purity and is used as a dispersant or intermediate, while 4,4‑dinitrostilbene‑2,2‑disulfonic acid typically meets ICUMSA‑type specifications for dye‑intermediate grade with low metal impurity limits (<10 ppm). P‑nitrotoluene‑o‑sulfonic acid and sulfanilic acid are common precursors in azo‑dye synthesis and are usually offered with moisture content ≤0.5 % and acid value <5 mg KOH g⁻¹. 2‑Amino‑1,4‑benzenedisulfonic acid is employed in polymer sulfonation and is often required to meet USP‑type assay ≥99 % and heavy‑metal limits ≤20 ppm. Buyers typically request a Certificate of Analysis (CoA) that lists assay, water content, heavy‑metal content and melting point for each batch.

Trade and Export Information - Luoyang Hanyi Chemical Co., Ltd.

China is a leading exporter of organic acids and aromatic intermediates, with the majority of shipments destined for Southeast Asian manufacturers, European chemical processors and North‑American specialty chemical firms. HS‑chapter 29 codes (e.g., 2915 for aromatic hydroxy‑ and amino‑compounds, 2920 for nitro‑compounds) are the standard tariff headings for the listed products, and customs authorities often require a detailed safety data sheet (SDS) and REACH compliance documentation for imports into the EU. Export logistics from inland Chinese facilities typically involve containerised bulk shipments in 20‑ft or 40‑ft drums, with FOB or CIF terms most common for this product class. The Chinese chemical export framework mandates registration with the Ministry of Ecology and Environment, and many buyers request verification of the supplier’s ISO‑9001 quality‑management system, even when not explicitly listed in the catalogue.

Sourcing from Luoyang Hanyi Chemical Co., Ltd. - Buyer Guidance

When sourcing from Luoyang Hanyi Chemical Co., Ltd., buyers should request a recent SDS, a CoA for the specific batch, and any available REACH or GHS classification documents. Verification of assay purity, moisture content and heavy‑metal limits against the buyer’s specification sheet helps confirm suitability for downstream dye‑ or polymer applications. It is advisable to obtain a sample, preferably in a sealed glass vial, before confirming a full order to assess both analytical data and material handling characteristics. Buyers should also confirm packaging material (e.g., HDPE drums with inner liners) and ensure the supplier can meet the required Incoterm (FOB Shanghai, CIF Shanghai, etc.) for the intended destination port.

What documentation should I request before purchasing sulfonic acids from this supplier?

Ask for a current Safety Data Sheet (SDS), a Certificate of Analysis (CoA) showing assay, moisture, heavy‑metal limits and a statement of REACH compliance if the shipment is bound for the EU.

Are the listed chemicals typically shipped in bulk or smaller containers?

Bulk shipments are common in 20‑ft or 40‑ft HDPE drums; smaller orders are often packed in 5‑L or 25‑L PET bottles for sample or trial quantities.

Which HS‑code families apply to the products in this catalogue?

The acids fall under HS‑chapter 29, with typical headings such as 2915 for aromatic hydroxy‑ and amino‑compounds and 2920 for nitro‑substituted aromatic acids.

What are typical purity levels for sulfanilic acid and related intermediates?

Commercial grades are usually ≥98 % assay with moisture ≤0.5 % and heavy‑metal content below 20 ppm, matching standard dye‑intermediate specifications.

What minimum order quantity (MOQ) is usual for these specialty acids?

MOQs vary by product but generally range from one 20‑ft drum (≈1 ton) for bulk buyers to a single 5‑L bottle for sample testing.

What lead times can I expect for production and shipment?

Lead times are typically 4‑6 weeks from order confirmation for bulk drums, with faster 1‑2 week turnaround possible for small‑volume sample packs.

Which certifications are commonly required by importers of these chemicals?

Importers often require ISO‑9001 quality‑management certification, REACH registration for EU markets, and a valid GHS classification on the SDS.

How is the product usually packaged for international shipping?

Standard packaging includes HDPE drums with inner liners, sealed with metal caps; drums are placed on wooden pallets and shrink‑wrapped for container loading.