sodium sulfite price
Sodium sulfite (chemical formula: Na₂SO₃) is an inorganic compound commonly found in anhydrous and heptahydrate forms (Na₂SO₃·7H₂O). Below are its main characteristics:
Physical Properties:
Anhydrous Form: White powder, highly soluble in water, slightly soluble in ethanol.
Heptahydrate: Colorless crystals, highly soluble in water, prone to efflorescence in air.
Chemical Properties:
Reducing Agent: Sodium sulfite is a strong reducing agent, reacting with oxidizers to form sodium sulfate.
Reaction with Acids: Reacts with acids to release sulfur dioxide gas.
Stability: Stable in dry air but easily oxidized to sodium sulfate in humid environments.
Safety Precautions:
Inhalation: May irritate the respiratory tract, use in well-ventilated areas.
Contact: May irritate skin and eyes, wear protective equipment during handling.
Ingestion: Harmful if swallowed,avoid accidental ingestion.
Storage Methods:
Dry Conditions: Store in a dry, cool place, avoiding moisture.
Sealed Containers: Keep containers tightly sealed to prevent oxidation and moisture absorption.
Application
Food Industry:
Preservative: Used to prevent oxidation and browning, extending shelf life.
Bleaching Agent: Used to bleach foods such as dried fruits and sugars.
Water Treatment:
Dechlorination Agent: Used to remove residual chlorine from water, protecting downstream equipment.
Antioxidant: Prevents dissolved oxygen in boiler water from corroding metals.
Chemical Industry:
Reducing Agent: Used in organic synthesis and dye production.
Neutralizing Agent: Used to adjust solution pH.
Photography Industry:
Developing Agent: Used in photo development to prevent oxidation of the developer.
Environmental Protection:
Waste Gas Treatment: Used to absorb sulfur dioxide from industrial exhaust, reducing pollution.
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Key Products:
- Sodium Hydroxide
- Sodium Sulfide
- Polyaluminum Chloride
- Polyacrylamide
- Oxalic Acid
- Compound Alkali
- Sodium Hydrosulfide
- Sodium Metabisulfite
- Ferrous Sulfate
- Soda Ash
- Glucose
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- Industrial Salt
- Defoaming Agent
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