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Guangdi Chemical – World’s Leading
Sodium Hydrosulfite Manufacturer

Committed to recoloring the world with high-purity industrial chemicals. Over 20 years of expertise in chemical innovation and global supply.

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Our Vision & Values

Vision

We are committed to recoloring the world through sustainable and high-performance chemical solutions that empower industries globally.

Quality

Quality assurance is our eternal promise to customers. Every batch undergoes rigorous testing to meet international standards.

Mission

Increase your competitiveness with high-quality, reliable chemical materials backed by over 20 years of technical expertise.

Guangdi Chemical Manufacturing Facility

About Guangdi Chemical

Guangdi Chemical Co., Ltd. is the largest sodium hydrosulfite (sodium dithionite) manufacturer in China, located in the Maoming National Hi-Tech Industrial Development Zone in Guangdong.

Since our establishment in 2012, we have developed into a fully integrated enterprise covering the production, storage, transportation, sales, and service of chemical products. We are one of the key enterprises supported by the national high-tech industrial park and the sole sodium hydrosulfite producer in Guangdong Province.

With top-tier production capabilities and a technical team with over 20 years of experience, Guangdi ranks among the world’s leading suppliers in the chemical industry.

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Our Chemical Products

Sodium Hydrosulfite

Sodium Hydrosulfite

Also known as sodium dithionite, this white crystalline powder is widely used in textile bleaching, paper recycling, and as a reducing agent in chemical processes.

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Sodium Sulfite

Sodium Sulfite

A soluble sodium salt of sulfurous acid (Na₂SO₃), used as a preservative in food, chlorine neutralizer in water treatment, and in photographic development.

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Sodium Metabisulfite

Sodium Metabisulfite

An inorganic compound (Na₂S₂O₅) used as a disinfectant, antioxidant, and preservative in food, pharmaceuticals, and industrial applications.

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Sulfur Dioxide

Sulfur Dioxide

Toxic gas with a burnt match smell (SO₂), used in refrigeration, wine preservation, and as a reducing agent in chemical synthesis.

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Liquid Carbon Dioxide

Liquid Carbon Dioxide

Colorless, odorless cryogenic liquid (LCO₂) used in food processing, welding, fire suppression, and pH control in water treatment.

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Anhydrous Sodium Sulfite

Anhydrous Sodium Sulfite

High-purity form of sodium sulfite without water of crystallization, ideal for sensitive chemical reactions and industrial bleaching processes.

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Reducing Agents

Industrial Reducing Agents

Specialty-grade reducing chemicals for textile, pulp & paper, and chemical synthesis industries. Custom formulations available.

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Chemical Solutions

Custom Chemical Solutions

Tailored chemical blends and technical support for specific industrial applications. OEM and bulk supply options available.

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Why Choose Guangdi Chemical?

Top Production Capacity

One of the largest sodium hydrosulfite producers in China with advanced manufacturing infrastructure.

Quality Certified

OEKO-TEX® and ISO-compliant production with strict quality control at every stage.

Global Reach

Serving clients in textiles, paper, food, and chemical industries across Asia, Europe, and the Americas.

Expert Technical Team

Over 20 years of combined experience in chemical engineering and industrial applications.

10+
Years in Operation
20+
Countries Served
5
Core Products
1
Leading Facility in Guangdong

Latest Industry Insights

Sodium Hydrosulfite & Recycled Pulp
May 12, 2023

Sodium Hydrosulfite & Recycled Pulp

Discover how sodium hydrosulfite enhances brightness and quality in recycled paper production.

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Global Textile Chemicals Market
January 10, 2022

Global Textile Chemicals Market Size in 2020

Analysis of market trends and growth drivers in the textile chemicals industry post-pandemic.

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Growth Forecast
December 28, 2021

Growth & Forecast for Global Textile Chemicals Market

Emergen Research analysis reveals continued expansion in demand for eco-friendly textile chemicals.

Read Article

Frequently Asked Questions

What is sodium hydrosulfite used for?

Sodium hydrosulfite is primarily used as a reducing agent in textile bleaching, paper recycling, and chemical synthesis due to its strong de-colorizing properties.

Is Guangdi Chemical ISO certified?

Yes, our production processes follow strict quality control standards, and we comply with international certifications including ISO and OEKO-TEX® requirements.

Do you offer bulk shipments internationally?

Yes, we provide bulk packaging and global logistics support for sodium hydrosulfite, sodium sulfite, and other chemical products to over 20 countries.

Can you customize chemical formulations?

Yes, our technical team offers custom chemical solutions tailored to specific industrial needs, including OEM packaging and formulation adjustments.

Where is your manufacturing plant located?

Our main production facility is located in the Maoming National Hi-Tech Industrial Development Zone, Guangdong Province, China.

Get in Touch

For inquiries, quotes, or technical support, reach out to our international or domestic teams.

International Division

Location: Rm. 3903A, West Tower, Xinghe Twins Tower, Yaxing Road, Longgang District, Shenzhen, China

WhatsApp/Mobile: +86-13828671519

Email: vincent@gdchemical.com

Domestic Marketing Department

Location: No.289 Industrial Road, Maoming High-tech Industrial Development Zone, Maoming City, Guangdong Province, P.R. China

Mobile: +86-18023990099

Email: haotong@gdchemical.com

Head Office

Tel: +86-0668-2637666

WhatsApp/Phone: +86-13828671519

Email: vincent@gdchemical.com

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