Sodium Dithionite 88%

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Sodium Dithionite 88%, also known as Sodium Hydrosulfite, is a white crystalline powder with a weak sulfurous odor. It is a sodium salt of dithionous acid. Although it is stable under most conditions, it will decompose in hot water and in acid solutions. This compound is a water-soluble salt and can be used as a reducing agent in aqueous solutions.

This product is commonly used in industrial dyeing processes as a reducing agent. It helps reduce otherwise water-insoluble dyes into water-soluble alkali metal salts, improving overall color quality. Additionally, the reduction properties of Sodium Dithionite eliminate excess dye, residual oxide, and unintended pigments, making it an ideal product for dyeing processes.

Key Features:

• White crystalline powder with a weak sulfurous odor
• Water-soluble salt and can be used as a reducing agent in aqueous solutions
• Improves overall color quality in industrial dyeing processes

Product Specifications:

Similar Products:

• Sodium Bisulfite Solution
• Sodium Formaldehyde Sulfoxylate
• Sodium Metabisulfite
• Sodium Sulfite Anhydrous
• Sodium Sulfoxylate Formaldehyde

Sodium Metabisulfite, 98%

Sodium metabisulfite (SMBS) is commonly used for removal of free chlorine and as a biostatic. Other chemical reducing agents exist (e.g., sulfur dioxide), but they are not as cost-effective as SMBS. When dissolved in water, sodium bisulfite (SBS) is formed from SMBS: Na₂S₂O₅ + H₂O → 2 NaHSO₃, then reduces hypochlorous acid according to: 2NaHSO₃ + 2HOCl → H₂SO₄ + 2HCl + Na₂SO₄. In theory, 1.34 mg of sodium metabisulfite will remove 1.0 mg of free chlorine. In practice, however, 3.0 mg of sodium metabisulfite is normally used to remove 1.0 mg of chlorine.

Product Specifications

Applications and Benefits:

• Preservative
• Antioxidant
• Bleaching agent
• Chlorine removal
• Biostatic agent

Caution:

Toxic by inhalation. Tolerance limit: 5 mg per cubic meter of air.

Synonyms:

Pyrosulfurous acid, disodium salt; Sodium Pyrosulfite; Disodium Salt Pyrosulfurous Acid; Sodium disulfite; Disodium disulfite; Disulfurous

Sodium Sulfite, Anhydrous, 98%

Sodium Sulfite, Anhydrous (Na₂SO₃), is a high-purity technical-grade compound with 98% Na₂SO₃ content, widely valued for its reducing and oxygen-scavenging properties. Commonly used in water treatment, it protects steam boilers and washing machines from corrosion by reacting with dissolved oxygen to form sodium sulfate. In the photographic industry, it prevents developer solutions from oxidizing and facilitates the removal of fixer from photo-paper and film. The textile industry utilizes Sodium Sulfite as a bleaching, desulfurizing, and dechlorinating agent, while the paper industry employs it in various processes. Additionally, it is used as a preservative to prevent discoloration in dried fruits and meats. Sodium Sulfite also functions as a reagent in sulfonation and sulfomethylation reactions. With a 98% purity level and low impurity content, this versatile compound is essential for numerous industrial and commercial applications.

Key Features

• 98% pure technical-grade Sodium Sulfite (Na₂SO₃)
• Protects water systems by scavenging oxygen
• Prevents oxidation in photographic developer solutions
• Used in textile bleaching, desulfurizing, and dechlorination
• Preserves dried fruits and meats from discoloration
• Functions as a reagent in sulfonation and sulfomethylation

Product Specifications