Description

Diphenylammonium Sodium Sulphite is an organosulfur compound that functions as a versatile reducing agent and stabilizer in various chemical processes. Its primary commercial value lies in its ability to prevent unwanted oxidation, thereby protecting sensitive materials and extending product shelf life. This chemical is essential for manufacturers in the pharmaceutical, polymer, and specialty chemical industries who require reliable antioxidants and process intermediates.

Application

• As an antioxidant and stabilizer in polymer production to prevent degradation during processing and storage.
• As a reducing agent in organic synthesis for the preparation of specialty chemicals and pharmaceutical intermediates.
• In photographic developer solutions as a preservative to maintain solution efficacy.
• For water treatment applications as an oxygen scavenger in boiler feed systems.
• As a chemical intermediate in the synthesis of dyes, pigments, and other sulfonated compounds.
• In analytical chemistry as a reagent for specific reduction reactions.

Basic Information

Product Name	Diphenylammonium Sodium Sulphite
CAS No.	37625-49-3
Molecular Formula	C12H12NNaO3S
Molecular Weight	273.29 g/mol
Synonyms	Sodium Diphenylamine Sulfinate; Diphenylamine Sodium Sulfonate; Diphenylammonium Sulfoxylate; Benzenamine, N-phenyl-, sulfoxylate sodium salt; Sodium N-Phenylbenzenamine Sulfinate; Antioxidant DPS; DPS-Na; Stabilizer 37625-49-3
EINECS	Contact for details

Quality Control

Our Diphenylammonium Sodium Sulphite is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.