Quart bottle of Sodium Bisulfite 40% ACS Grade solution in white HDPE container with blue label, corrosive hazard symbol, and safety information.
One-gallon white HDPE container of Sodium Bisulfite 40% ACS Grade chemical with blue label, NFPA hazard diamond, and Class 1 warning symbol.
2-quart white HDPE bottles of Sodium Bisulfite 40% ACS Grade solution with blue labels, UN1791 hazard symbol, and safety warnings.
4x1-gallon Sodium Bisulfite 40% ACS Grade in white HDPE jugs with blue labels, hazard symbols, and safety warnings from Alliance Chemical.
40 palletized boxes of ACS-grade sodium bisulfite stacked on wooden pallet, brown cardboard containers with Alliance Chemical logo in red, 5x5 configuration.
5-gallon white HDPE jerry can containing 40% Sodium Bisulfite ACS Grade chemical with Alliance Chemical blue label and GHS hazard symbols.
15-gallon blue HDPE carboy of Sodium Bisulfite 40% ACS Grade chemical solution with NFPA diamond, safety instructions, and UN hazard symbols.
55-gallon blue poly drum of Sodium Bisulfite 40% ACS Grade with corrosive warning label, Alliance Chemical branding, and double-bung lid closure.
275-gallon IBC tote of Sodium Bisulfite 40% ACS Grade chemical with metal cage frame, Alliance Chemical label, hazard symbols, and bottom discharge valve.
Multiple 5-gallon white poly pails of 40% ACS-grade sodium bisulfite stacked on wooden pallet, Alliance Chemical branded containers.
4x1-quart bottles of Sodium Bisulfite 40% ACS Grade in white HDPE containers with blue labels, corrosive/oxidizer warning symbols, and ribbed caps.
1-quart bottles of Sodium Bisulfite 40% ACS Grade solution in white HDPE containers with blue labels, corrosive warning symbols, and safety data.
275-gallon IBC tote of Sodium Bisulfite 40% ACS Grade in white HDPE container with metal cage frame, bottom discharge valve, and blue product label.
55-gallon blue drums of Sodium Bisulfite 40% ACS Grade by Alliance Chemical, featuring corrosive Class 8 hazard diamond, safety information, and white screw caps.

Sodium Bisulfite 40% ACS Grade

Category : Salts

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Sodium Bisulfite 40% ACS Grade

$19.74
One-gallon white HDPE container of Sodium Bisulfite 40% ACS Grade chemical with blue label, NFPA hazard diamond, and Class 1 warning symbol.
2-quart white HDPE bottles of Sodium Bisulfite 40% ACS Grade solution with blue labels, UN1791 hazard symbol, and safety warnings.
4x1-gallon Sodium Bisulfite 40% ACS Grade in white HDPE jugs with blue labels, hazard symbols, and safety warnings from Alliance Chemical.
40 palletized boxes of ACS-grade sodium bisulfite stacked on wooden pallet, brown cardboard containers with Alliance Chemical logo in red, 5x5 configuration.
5-gallon white HDPE jerry can containing 40% Sodium Bisulfite ACS Grade chemical with Alliance Chemical blue label and GHS hazard symbols.
15-gallon blue HDPE carboy of Sodium Bisulfite 40% ACS Grade chemical solution with NFPA diamond, safety instructions, and UN hazard symbols.
55-gallon blue poly drum of Sodium Bisulfite 40% ACS Grade with corrosive warning label, Alliance Chemical branding, and double-bung lid closure.
275-gallon IBC tote of Sodium Bisulfite 40% ACS Grade chemical with metal cage frame, Alliance Chemical label, hazard symbols, and bottom discharge valve.
Quart bottle of Sodium Bisulfite 40% ACS Grade solution in white HDPE container with blue label, corrosive hazard symbol, and safety information.
Multiple 5-gallon white poly pails of 40% ACS-grade sodium bisulfite stacked on wooden pallet, Alliance Chemical branded containers.
4x1-quart bottles of Sodium Bisulfite 40% ACS Grade in white HDPE containers with blue labels, corrosive/oxidizer warning symbols, and ribbed caps.
1-quart bottles of Sodium Bisulfite 40% ACS Grade solution in white HDPE containers with blue labels, corrosive warning symbols, and safety data.
275-gallon IBC tote of Sodium Bisulfite 40% ACS Grade in white HDPE container with metal cage frame, bottom discharge valve, and blue product label.
55-gallon blue drums of Sodium Bisulfite 40% ACS Grade by Alliance Chemical, featuring corrosive Class 8 hazard diamond, safety information, and white screw caps.
  • Description
  • Product Documents

Product Overview

Sodium Bisulfite 40% (NaHSO₃) ACS Grade is a high-purity aqueous solution functioning as a precise reducing agent and antioxidant. This formulation meets American Chemical Society (ACS) specifications, ensuring low impurity levels (heavy metals, iron, and chloride) required for critical analytical chemistry and industrial water treatment processes.

This 40% w/v solution is the standard concentration for dechlorination, oxygen scavenging in boiler systems, and reductive synthesis. As an ACS Grade material, it is specifically manufactured to support reproducible results in titration standards, photographic development, and regulatory-compliant wastewater treatment where trace contaminants must be minimized.

Key Properties

  • CAS Number: 7631-90-5
  • Grade: ACS Reagent Grade
  • Concentration: 40% (39-41% w/w)
  • Appearance: Colorless to pale yellow liquid
  • Formula: NaHSO₃
  • Specific Gravity: 1.23 (Typical)
  • Heavy Metals (as Pb): ≤0.05–0.2 ppm
  • Iron (Fe): ≤0.08–0.3 ppm
  • Solubility: Completely soluble in water

Common Applications

  • Water Treatment: Used for dechlorination of drinking water and wastewater, removing residual chlorine before discharge or use.
  • Analytical Chemistry: A primary reducing agent in redox titrations and laboratory analysis requiring high-purity reagents.
  • Industrial Processing: Acts as an oxygen scavenger in boiler water treatment and a reducing agent in chemical synthesis.
  • Photography: Preservative in developer solutions to prevent rapid oxidation of developing agents.
  • Textile & Paper: utilized as an antichlore and bleaching assistant.

Safety Precautions

Sodium Bisulfite 40% is a corrosive liquid (Class 8). It releases sulfur dioxide gas if in contact with acids. Store in a cool, well-ventilated area in corrosion-resistant containers (HDPE). Avoid contact with skin and eyes. Wear appropriate Personal Protective Equipment (PPE), including acid-resistant gloves, splash goggles, and face shield. Refer to the Safety Data Sheet (SDS) for specific handling and emergency response protocols.

Benefits

ACS Purity: Minimizes interference in analytical and sensitive chemical processes.
Efficient Dechlorination: Rapidly neutralizes free chlorine in water treatment systems.
Versatile Packaging: Available in sizes ranging from 1 Quart bottles to 330 Gallon totes.
Quality Assurance: Rigorous testing ensures compliance with USP-NF and ACS monographs.

Related Products

Property Value
Molecular Weight 104.06 g/mol g/mol
Formula NaHSO3
Assay 40%
Grade ACS
Flash Point Non-flammable
Form Liquid
Solubility Highly soluble in water, moderate alcohol soluble
Appearance Clear to pale yellow liquid
Melting Point '-10°C °C
Boiling Point 103°C °C
Specific Gravity 1.36
Industry Industrial, Environmental, Wastewater

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