About Dingchen Industry(HK)Co., Limited - Chemicals & Allied Products Supplier in China

China hosts Dingchen Industry(HK)Co., Limited, which currently lists seven active chemical products in its catalogue. The catalogue spans the HS‑2501 family for edible and industrial salt, HS‑2819 for chromic acid and chrome oxide, HS‑2833 for sodium sulphate, and HS‑2836 for soda ash and sodium bicarbonate. Each entry specifies material composition, such as food‑grade sodium chloride, chromium trioxide solution, or 99 % pure sodium sulphate. The supplier’s product set therefore covers bulk salts, alkaline carbonates, and chromium‑based compounds used across multiple industrial sectors.

The seven products include PDV vacuum edible salt (HS 2501.00), PDV vacuum industrial salt (HS 2501.00), chromic acid (HS 2819.10), chrome oxide green (HS 2819.90), soda ash light 99.2 % (HS 2836.20), sodium bicarbonate food grade 99.0‑100.5 % (HS 2836.30), and anhydrous sodium sulphate 99 % (HS 2833.11). All items are described with precise chemical formulas and purity ranges, indicating suitability for food processing, glass manufacturing, detergent formulation, or metal finishing applications.

Product Range and Specialties of Dingchen Industry(HK)Co., Limited

The catalogue’s salt products are divided into food‑grade vacuum‑processed salt and an industrial‑grade vacuum salt, both classified under HS 2501.00. In the broader market, edible salt is commonly graded by ICUMSA numbers, with ICUMSA 45 representing high‑purity table salt, while industrial salt typically meets a minimum 98 % NaCl purity for de‑icing or chemical synthesis. Chromic acid (HS 2819.10) is supplied as an aqueous solution of chromium trioxide, a material that buyers usually require at concentrations of 30‑50 % w/w and accompanied by a Certificate of Analysis. Chrome oxide green (HS 2819.90) is a pigment grade Cr₂O₃, often specified at ≥99 % chromium(III) oxide purity for ceramic glazes or paint manufacturing. Sodium carbonate (soda ash) light 99.2 % (HS 2836.20) and sodium bicarbonate food grade 99‑100.5 % (HS 2836.30) are standard alkaline chemicals; the former is used in glass and detergent production, the latter in bakery and pharmaceutical formulations. Anhydrous sodium sulphate 99 % (HS 2833.11) is a bulk bulk chemical employed in detergent builders and pulp‑paper processing.

Trade and Export Information - Dingchen Industry(HK)Co., Limited

Chinese exporters of bulk chemicals such as salts, carbonates, and chromium compounds typically serve food processors in Southeast Asia, detergent manufacturers in Europe, glass producers in the United States, and metal‑finishing plants in the Middle East. The HS‑2501 family for salts often requires compliance with food‑safety standards like China GB 2716 or EU food law, while HS‑2819 chemicals are regulated under REACH and may need a Safety Data Sheet (SDS) and hazardous‑material handling certifications. Buyers usually request ISO 9001 quality‑management certification and, for food‑grade items, ISO 22000 or HACCP documentation. Standard logistics involve 20‑ft or 40‑ft containers with bulk bags (25 kg) for salts and carbonates, and intermediate bulk containers or drums for chromic acid and chrome oxide, shipped under FOB or CIF terms. Chinese customs requires accurate HS code declaration, weight verification, and, for hazardous chemicals like chromic acid, an import‑export license and environmental compliance paperwork.

Sourcing from Dingchen Industry(HK)Co., Limited - Buyer Guidance

When sourcing from Dingchen Industry(HK)Co., Limited, buyers should request a current Certificate of Analysis for each batch, confirming purity percentages and moisture content for salts, carbonates, and sulphates. For chromic acid and chrome oxide, a full Safety Data Sheet, a REACH registration excerpt, and any applicable hazardous‑material certificates should be obtained before order confirmation. Verify that food‑grade products meet the relevant GB or EU food‑grade specifications, and that industrial chemicals comply with ISO 9001 or ISO 14001 if required by the buyer’s quality system. Typical MOQ for bulk salts and carbonates ranges from 20 metric tonnes per shipment, while chromic acid is often ordered in 5‑tonne drums; lead times generally fall between 30 and 45 days after receipt of a pro‑forma invoice and required certifications. Packaging is usually in polypropylene bulk bags for salts and carbonates, and sealed steel drums for chromic acid, both suitable for container loading and customs inspection.

What HS codes are used for Dingchen Industry's salt products?

Both the edible vacuum salt and the industrial vacuum salt are listed under HS 2501.00, which covers sodium chloride in bulk form.

Which purity levels are specified for the sodium bicarbonate product?

The sodium bicarbonate is described as food grade with a purity range of 99.0 % to 100.5 % NaHCO₃, matching typical bakery and pharmaceutical standards.

What documentation should I request for chromic acid shipments?

Buyers should ask for a current Safety Data Sheet, a Certificate of Analysis showing concentration (usually 30‑50 % w/w), and any REACH registration or hazardous‑material handling certificates.

Are there standard packaging options for the soda ash light product?

Soda ash light 99.2 % is commonly packed in 25 kg polypropylene bulk bags or 1‑tonne intermediate bulk containers, suitable for 20‑ft or 40‑ft container loading.

What certifications are typically required for the food‑grade salt?

Food‑grade salt usually requires compliance with GB 2716 or EU food‑law specifications, and buyers often request an ISO 22000 or HACCP audit report together with the Certificate of Analysis.

What are the typical minimum order quantities for the chromium‑based products?

Chrome oxide green is often ordered in batches of at least 5 tonnes, while chromic acid shipments generally start at 2 tonnes per drum, depending on the buyer’s processing capacity.

Which Incoterms are most commonly used for these chemical exports?

Exporters from China frequently use FOB (Free on Board) or CIF (Cost, Insurance, Freight) terms for bulk chemical shipments, allowing the buyer to arrange inland transport or insurance as needed.

How is the anhydrous sodium sulphate typically shipped?

Anhydrous sodium sulphate 99 % is usually loaded in 25 kg bulk bags or 1‑tonne IBCs, sealed to prevent moisture uptake, and placed in standard 20‑ft or 40‑ft containers for ocean freight.