What is Sodium P-toluenesulfinate?
Sodium P-toluenesulfinate is an organic compound mainly used as a dye, fluorescent brightener, cleaning agent and catalyst.
Properties
- Appearance and properties: Toluenesulfinic acid sodium usually exists in the form of white crystals or crystalline powder. It is a hygroscopic solid that easily absorbs moisture in a high humidity environment.
- Solubility: It is soluble in water, and its solubility increases with increasing temperature.
- Stability: It is relatively stable at room temperature, but may decompose under high temperature or strong acidic conditions.
- Strong acid and weak alkalinity: The substance has acidic properties and can react with alkali to form corresponding salts. It can react with silver acetate to produce the corresponding silver salt precipitate.
Basic information
| CAS Number | 824-79-3 |
| Molecular Formula | C₇H₇NaO₃S |
| Molecular Weight | 194.18 g/mol |
| Appearance | White crystalline powder or granules, odorless, slightly bitter taste |
| Density | ~1.48 g/cm³ (anhydrous) |
| Melting Point | >300°C (decomposes) |
| Solubility | Highly soluble in water (60 g/100mL at 25°C); slightly soluble in ethanol; insoluble in diethyl ether, benzene, etc. |
| Aqueous Solution pH | 7.0–9.0 (1% solution) |
| Stability | Stable under normal conditions; hygroscopic; avoid contact with strong acids and strong oxidizing agents |
| Storage Conditions | Store in a sealed container in a dry, cool place, away from fire and oxidizing agents |
Application
- Organic synthesis intermediate: used to prepare drugs, dyes, surfactants and pesticides (such as sulfonamide drugs, azo dyes, etc.). It is a key raw material for synthesizing sulfur-containing compounds (such as sulfides and sulfones).
- Textile industry: Sodium P-toluenesulfinate is used as a reducing agent for bleaching or dechlorination of cotton fabrics. It is used as a stabilizer in the printing and dyeing process to improve the solubility and uniformity of dyes.
- Water treatment and metal processing: Chelate heavy metal ions (such as copper and nickel) for industrial wastewater treatment. It is used as an additive in electroplating solution to improve the gloss and adhesion of the coating.
- Polymer and rubber additives: Antioxidants or stabilizers for synthetic polymer materials (such as resins and rubbers). They can adjust the polymerization reaction rate or improve product performance.
Safety Information
- Storage Note: Sodium P-toluenesulfinate should be stored in a dry, clean, well-ventilated place away from fire, heat and flammable materials. Avoid contact with strong oxidants and acidic substances during storage.
- Precautions for use: When handling, personal protective equipment such as protective glasses, gloves and protective clothing should be worn. Ensure that the operating area is well ventilated.
- Waste Disposal: Waste should be properly disposed of in accordance with local regulations. Do not discharge Toluenesulfinic acid sodium into sewers or landfills.
Product Specifications and Certifications
- Purity: ≥98% (industrial grade), ≥99% (pharmaceutical grade), customized purification services (such as low heavy metal content) can be provided.
- Certification: Complies with ISO 9001, ISO 14001 standards, pharmaceutical-grade products can provide DMF documents and FDA filings.
Company Profile
Gneebio is an enterprise specializing in the research and development, production and sales of chemicals. Our factory was established in 2016 and is located in Henan Province, covering an area of 3,600 square meters. Our team consists of more than 200 people. Over the years, the entire team has continued to improve to meet the actual needs of customers and has now become one of the leading chemical product exporters in Henan Province, China.
Our hot-selling products include aromatic hydrocarbons (Naphtha (petroleum), Cyclohexanone, Epsilon-Caprolactam, 2-Anilinoethanol, etc.), alcohols (Ethylene Glycol, 1-Butanol, 2-Methyl-1-Propanol, Ethyl Alcohol, etc.), phenols and ketones (Phenol, Bisphenol A, Methyl Isobutyl Ketone, Phenolic Resin, etc.), and petrochemicals.
Please contact us if you need any.
FAQ
1.Are you manufacturers?
A:Yes, we are professional manufacturers in Henan, china since 2016. Welcome to visit our factory for long-termcooperations.
2. How do you ensure your product and service quality?
A:All of our processes strictly adhere to is0 9001 procedures and we are equipped with state of the art quality controlfacilities.
3. Can I print my logo?
A: Yes, OEM/ODM service is available. Customized logo/package/name/color. For details, Please kindly contact the sales persons.
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