About Qinyang Wise Chemical Co., Ltd - Industrial Chemicals Supplier in China

Qinyang Wise Chemical Co., Ltd is based in China and lists six active products in its catalogue. All six items are variants of sodium hydrosulfide (NaHS) presented as solid or flake forms, with descriptions that reference yellow colour and a 70 % purity level. The catalogue uses several naming conventions for the same chemical, including "Solid Yellow Nahs Flake 70%" and "Yellow Nahs Sodium Hysrosulphide Flake". These products fall under the industrial chemicals segment and are classified within the broader chemicals & allied products category. The supplier is identified with a harbor‑level trust tier, indicating a moderate level of verification in trade platforms.

The listed items are all inorganic sulfide compounds used as reducing agents, pH adjusters, or precursors in various manufacturing processes. The repeated emphasis on the yellow colour and solid flake form suggests the products are intended for bulk handling and easy dissolution in aqueous solutions. No additional product families such as machinery or equipment are provided despite the broader category listing. The supplier’s catalogue does not include explicit certifications, HS codes, or packaging details, limiting the factual description to the product names and chemical identifiers presented.

Product Range and Specialties of Qinyang Wise Chemical Co., Ltd

The catalogue contains six entries that are essentially the same chemical - sodium hydrosulfide - described with slight variations in wording and physical form. Typical industry grades for NaHS flakes range from 60 % to 90 % purity, with the 70 % grade being common for water‑treatment and metal‑processing applications. Standard specifications include moisture content below 5 %, particle size distribution suitable for bulk dosing, and a pH of 10 - 12 when dissolved in water. Buyers usually receive the product in reinforced polypropylene bags of 25 kg or 50 kg, and a 20‑foot container can hold approximately 800 such bags, depending on packaging density.

In the broader industrial chemicals market, sodium hydrosulfide is often shipped alongside other inorganic sulfides under HS chapter 28 (Inorganic chemicals). Exporters frequently provide a Certificate of Analysis (CoA) that details purity, moisture, and heavy‑metal limits, as well as a Material Safety Data Sheet (MSDS) that outlines handling, storage, and transport requirements. These documents are standard expectations for bulk chemical shipments from China to international buyers.

Trade and Export Information - Qinyang Wise Chemical Co., Ltd

China is a major exporter of inorganic chemicals, and sodium hydrosulfide is regularly shipped to regions with extensive metal‑finishing, paper‑pulp, and textile industries, notably Southeast Asia, the Middle East, and parts of Europe. Typical importers require compliance with REACH registration for the European market and may request ISO 9001 quality‑management certification from the supplier, although such certifications are not listed for this company. The standard HS heading for sodium hydrosulfide falls under 2836.90, which covers other inorganic chemicals, and customs authorities often request an MSDS and CoA for clearance. Logistics for NaHS usually involve sealed bulk bags on a full container load (FCL) basis, with common Incoterms such as CIF or FOB to major ports like Shanghai or Ningbo.

Given the chemical’s reactive nature, shipments are subject to hazardous‑material regulations, including proper labeling under the UN classification system (UN 1705 for sodium hydrosulfide). Export documentation typically includes a safety data sheet, a certificate of origin, and, where required, a registration document for the destination country’s chemical import authority.

Sourcing from Qinyang Wise Chemical Co., Ltd - Buyer Guidance

When evaluating Qinyang Wise Chemical Co., Ltd, buyers should request the latest MSDS and a detailed CoA that confirms the 70 % NaHS purity, moisture level, and any residual heavy‑metal content. A sample batch of 5 kg is often sufficient for laboratory testing of solubility, pH response, and compatibility with the intended process. Verify the packaging material (e.g., polypropylene bags) for chemical resistance and ensure the supplier can provide container sealing and proper hazardous‑material labeling for transport.

Before placing a purchase order, confirm whether the supplier can meet the destination country’s registration requirements, such as REACH for the EU or TSCA for the United States. Clarify the minimum order quantity, typical lead time (often 30‑45 days for production and packaging), and the preferred Incoterm to avoid unexpected freight or duty charges.

What form does the sodium hydrosulfide from Qinyang Wise Chemical Co., Ltd come in?

The supplier lists the product as solid or flake forms, described as yellow NaHS flakes with a nominal 70 % purity. Both solid and flake variants are intended for bulk dissolution in water.

Which purity level is standard for the listed NaHS products?

All six catalogue entries reference a 70 % purity grade, which aligns with common industrial specifications for water‑treatment and metal‑processing uses.

What documentation should a buyer request before purchasing?

Buyers should request a current Material Safety Data Sheet (MSDS), a Certificate of Analysis (CoA) showing purity, moisture and heavy‑metal limits, and any export registration required by the importing country.

How is the product typically packaged for export?

In the industry, sodium hydrosulfide is normally packed in reinforced polypropylene bags of 25 kg or 50 kg, which are then loaded into 20‑foot containers for full container load shipments.

What are the common shipping terms used for this chemical from China?

Exporters from China frequently use CIF (Cost, Insurance, Freight) or FOB (Free on Board) to major ports such as Shanghai, allowing the buyer to arrange onward transport.

Which regions most frequently import sodium hydrosulfide from China?

Key import markets include Southeast Asian countries with metal‑finishing sectors, Middle‑Eastern water‑treatment projects, and European nations that require REACH‑registered chemicals.

Are there any standard certifications buyers should look for?

While the supplier’s catalogue does not list certifications, buyers typically ask for ISO 9001 quality‑management certification and proof of REACH or equivalent chemical registration for the target market.

What is a typical lead time for an order of NaHS flakes?

Lead times for bulk inorganic chemicals from Chinese manufacturers are usually 30 to 45 days, covering production, packaging, and preparation for container loading.