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Potassium Hydrogen Sulfite CAS No. 7773-03-7: Top 10 Manufacturers & Suppliers

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POTASSIUM HYDROGEN SULFITE CAS No. 7773-03-7: Top 10 Manufacturers & Suppliers

Potassium Hydrogen Sulfite Manufacturer & Supplier Guide

Potassium Hydrogen Sulfite, also known as Potassium Bisulfite, is an inorganic sulfur compound widely used as a reducing agent, preservative, antioxidant, and chemical intermediate.

With excellent reducing properties and sulfur dioxide releasing capability, Potassium Hydrogen Sulfite is widely applied in:

  • Food and beverage preservation

  • Water treatment

  • Chemical synthesis

  • Pulp and paper processing

  • Textile industry

  • Pharmaceutical intermediates

  • Industrial reducing applications

This article introduces the Top 10 Potassium Hydrogen Sulfite manufacturers and suppliers, including leading Chinese suppliers and Korean chemical companies involved in industrial chemical production and supply.

Product Information of Potassium Hydrogen Sulfite

Item

Details

Product Name

Potassium Hydrogen Sulfite

Alternative Name

Potassium Bisulfite

CAS Number

7773-03-7

Molecular Formula

KHSO₃

Molecular Weight

120.17 g/mol

Appearance

Colorless to pale yellow liquid / crystalline solid

Chemical Type

Inorganic sulfite salt

Purity

Industrial grade / Food grade

Solubility

Soluble in water

Main Application

Reducing agent, preservative, chemical additive

Chemical Properties of Potassium Hydrogen Sulfite

Potassium Hydrogen Sulfite is an acidic potassium salt of sulfurous acid.

Key characteristics:

  • Strong reducing capability

  • Releases sulfur dioxide under acidic conditions

  • Water soluble

  • Oxygen scavenging ability

  • Good antioxidant performance

  • Effective sulfur-based chemical reagent

Because of these properties, Potassium Hydrogen Sulfite is widely used in industrial formulations requiring oxidation control and sulfur dioxide generation.

Main Applications of Potassium Hydrogen Sulfite

1. Food & Beverage Industry

Potassium Hydrogen Sulfite is used as a preservative and antioxidant.

Applications:

  • Wine production

  • Fruit processing

  • Beverage preservation

  • Food antioxidant systems

Benefits:

  • Prevents oxidation

  • Maintains product stability

  • Controls microbial growth

2. Water Treatment

Potassium Hydrogen Sulfite is used as an oxygen scavenger.

Applications:

  • Boiler water treatment

  • Industrial wastewater treatment

  • Oxygen removal systems

Advantages:

  • Removes dissolved oxygen

  • Protects metal equipment

  • Reduces corrosion risk

3. Chemical Manufacturing

Applications:

  • Reducing agent

  • Sulfur-containing intermediate

  • Chemical synthesis reagent

Used in:

  • Organic synthesis

  • Inorganic chemical processes

  • Specialty chemical production

4. Pulp & Paper Industry

Applications:

  • Bleaching processes

  • Paper treatment

  • Chemical processing

Benefits:

  • Controls oxidation

  • Improves processing efficiency

5. Textile Industry

Applications:

  • Textile processing

  • Dyeing auxiliaries

  • Reducing agent systems

Top 10 Potassium Hydrogen Sulfite Manufacturers & Suppliers

1. CHANG ZHOU AO ZUN COMPOSITE MATERIAL CO., LTD

Company Overview

CHANG ZHOU AO ZUN COMPOSITE MATERIAL CO., LTD is a Chinese chemical manufacturer specializing in specialty chemicals, inorganic compounds, functional additives, and industrial chemical materials.

The company supplies Potassium Hydrogen Sulfite for global industrial customers.

Product Information

  • Product:

    POTASSIUM HYDROGEN SULFITE

  • Trademark:

    AO ZUN MMA

  • Supply Type:

    • Industrial bulk grades

    • Customized packaging

  • Applications:

    • Chemical processing

    • Water treatment

    • Industrial additives

Company Advantages

  • Professional chemical manufacturing

  • Stable production capability

  • Export experience

  • Customized supply solutions

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2. CHANG ZHOU QI DI CHEMICAL CO., LTD

Company Overview

CHANG ZHOU QI DI CHEMICAL CO., LTD is a Jiangsu-based chemical supplier specializing in stabilized chemical products and industrial chemical solutions.

The company provides stabilized Potassium Hydrogen Sulfite products for international markets.

Product Information

  • Product:

    Stabilized POTASSIUM HYDROGEN SULFITE

  • Trademark:

    QI DI Pure

  • Location:

    Jiangsu, China

  • Export Markets:

    Korea, Europe, and global markets

Company Advantages

  • Specialty chemical experience

  • Stable quality control

  • International logistics capability

  • Customized formulations

3. LG Chem Ltd. (Korea)

LG Chem Ltd.

Company Overview

LG Chem is one of Korea's largest chemical manufacturers with extensive experience in industrial chemicals, advanced materials, and specialty chemical solutions.

Advantages:

  • Large-scale chemical production

  • Strong R&D capability

  • Global supply network

4. Lotte Chemical Corporation (Korea)

Lotte Chemical Corporation

Company Overview

Lotte Chemical produces industrial chemical materials and specialty chemical products.

Advantages:

  • Large manufacturing facilities

  • International export capability

  • Chemical process expertise

5. Hanwha Solutions Corporation (Korea)

Hanwha Solutions Corporation

Company Overview

Hanwha Solutions develops chemical materials, industrial additives, and specialty chemical products.

Advantages:

  • Advanced chemical technology

  • Strong industrial supply chain

6. OCI Company Ltd. (Korea)

OCI Company Ltd.

Company Overview

OCI specializes in chemical materials and industrial chemical solutions.

Advantages:

  • Chemical manufacturing experience

  • International market presence

7. Soulbrain Co., Ltd. (Korea)

Soulbrain Co., Ltd.

Company Overview

Soulbrain supplies high-purity chemicals and specialty chemical materials.

Advantages:

  • High purity chemical technology

  • Quality management systems

8. ENF Technology Co., Ltd. (Korea)

ENF Technology Co., Ltd.

Company Overview

ENF Technology specializes in specialty chemical materials and industrial chemical solutions.

Advantages:

  • Fine chemical expertise

  • High-quality standards

9. Kumho Petrochemical Co., Ltd. (Korea)

Kumho Petrochemical Co., Ltd.

Company Overview

Kumho Petrochemical produces industrial chemicals, polymers, and specialty chemical materials.

Advantages:

  • Chemical production capability

  • Global supply experience

10. Samsung Fine Chemicals (Korea)

Samsung Fine Chemicals

Company Overview

Samsung Fine Chemicals has experience in specialty chemical manufacturing and industrial chemical applications.

Advantages:

  • Advanced chemical processing

  • High-quality production systems

How to Select a Reliable Potassium Hydrogen Sulfite Supplier?

When sourcing Potassium Hydrogen Sulfite, buyers should evaluate:

Product Quality

Professional suppliers should provide:

  • Certificate of Analysis (COA)

  • Safety Data Sheet (SDS)

  • Purity specification

  • Batch testing report

Manufacturing Capability

Important factors:

  • Stable production capacity

  • Consistent chemical quality

  • Reliable supply chain

Export Capability

International customers should consider:

  • Export documentation

  • Regulatory compliance

  • Safe transportation packaging

Packaging Options

Common packaging:

  • HDPE drums

  • Plastic containers

  • IBC tanks

  • Customized industrial packaging

Frequently Asked Questions (FAQ)

What is Potassium Hydrogen Sulfite?

Potassium Hydrogen Sulfite is an inorganic potassium sulfur compound used as a reducing agent, antioxidant, preservative, and chemical additive.

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