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HNaSO3 Series Sodium Hydrogen Sulfite
RAW MATERIAL
HNaSO3

HNaSO3 Series Sodium Hydrogen Sulfite

HNaSO3 Series Sodium Hydrogen Sulfite is a white crystalline sodium bisulfite powder used in industrial bleaching, reducing, preservation, and water-treatment applications.

Chemical Name
Sodium Hydrogen Sulfite
Molecular Weight
104.06 g/mol
Molecular Formula
HNaO3S
EINECS
231-548-0
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PRODUCT OVERVIEW

Product Description

HNaSO3 Series Sodium Hydrogen Sulfite is an inorganic sodium bisulfite material supplied as a white crystalline powder with a characteristic sulfurous odor. It is soluble in water and forms an acidic aqueous solution, while its solubility in alcohol is limited. The material is commonly used where bleaching, reducing, preservation, antioxidant, or wastewater-treatment functions are required. Its commercial quality is evaluated through sulfur dioxide content, water-insoluble matter, chloride, iron, arsenic, and heavy-metal levels.
KEY PROPERTIES

Product Characteristics

White crystalline inorganic powder.
Soluble in water and forms an acidic aqueous solution.
Limited solubility in alcohol.
Used in bleaching, reducing, preservation, and water-treatment applications.
TECHNICAL SPECIFICATIONS

Specification Data

Specification Standard
Appearance White crystalline powder
Content (SO2) by wt % 58.5 - 65
Water Insoluble by wt % 0.005
Cl by wt % 0.01
Fe by wt % 0.001
As by wt % 0.0001
Heavy Metal by wt % 0.001
APPLICATIONS

Typical Uses

✓
Used as a bleaching agent in textile and related industrial processing applications.
✓
Used as a reducing agent in dyeing, paper-making, tanning, and related chemical processes.
✓
Used in selected preservation and antioxidant applications.
✓
Used in wastewater-treatment applications.
STORAGE & HANDLING

Handling Guidance

Store in suitable sealed packaging in a dry and well-controlled storage environment. Protect the material from moisture, direct sunlight, contamination, and incompatible materials. Handling, packaging, and storage requirements should follow the applicable supplier SDS, COA, and technical documentation.
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