Product Description: Chlorine Dioxide (CAS# 10049-04-4)
Chlorine dioxide (CAS# 10049-04-4), with the molecular formula ClO₂ and a molecular weight of 67.45, is a compound that appears as a yellowish-green to orange-yellow gas with a pungent odor under normal temperature and pressure. In its liquid state, it is a reddish-brown liquid, while in solid form it presents as orange-red crystals. Since pure chlorine dioxide gas becomes explosive at concentrations above 10%, it is mainly used in the form of stable chlorine dioxide solutions or prepared on-site.
Chlorine dioxide Chemical Properties
| Melting point | -59°C |
| Boiling point | 11°C |
| density | 3.09g/L |
| vapor pressure | 0-22900Pa at 20-25℃ |
| solubility | slightly soluble in H2O |
| form | orange-green gas |
| color | orange-green |
| Water Solubility | Soluble ºC |
| Exposure limits | TLV-TWA 0.1 ppm (0.3 mg/m3); (ACGIH, MSHA, OSHA, and NIOSH); TLV-STEL 0.3 ppm (ACGIH); IDLH 10 ppm (NIOSH). |
| Dielectric constant | 1.7（77.0℃） |
| Stability: | May decompose explosively on shock, friction or concussion, or on heating rapidly. Strong oxidant - reacts violently with combustible and reducing materials, and with mercury, ammonia, sulphur and many organic compounds. |
| LogP | -3.22--2.9 at 20℃ |
| CAS DataBase Reference | 10049-04-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Chlorine dioxide(10049-04-4) |
| EPA Substance Registry System | Chlorine dioxide (10049-04-4) |
Safety Information
| Hazard Codes | O,T+,N |
| Risk Statements | 6-8-26-34-50 |
| Safety Statements | 23-26-28-36/37/39-38-45-61 |
| OEB | C |
| OEL | TWA: 0.1 ppm (0.3 mg/m3), STEL: 0.3 ppm (0.9 mg/m3) |
| RIDADR | UN 9191 |
| Hazardous Substances Data | 10049-04-4(Hazardous Substances Data) |
| IDLA | 5 ppm |
Product Usage
The largest application of chlorine dioxide is in wood pulp bleaching, where it acts as a highly selective oxidizing agent for lignin. In the pulp industry, there has been a general shift away from using chlorine and hypochlorite as bleaching agents, with chlorine dioxide increasingly adopted as their replacement.
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd. , headquartered in Shandong, China, is a modern fine chemical enterprise that unites R&D, production, sales, and global services within a seamlessly integrated framework. With a sustained and focused commitment to advanced chemical materials, the company is guided by three enduring principles—integrity without compromise, quality without shortcuts, and service without boundaries. Through consistent investment in innovation and a rigorous quality culture, Furuida is steadily expanding its global reach while strengthening a brand identity distinguished by consistency, competence, and credibility.
The company's capabilities are built around a seasoned, multidisciplinary team—adept in international trade and technical support—operating within a mature global supply network that marries scale with agility. With annual sales exceeding RMB 600 million, Furuida serves more than 5,000 industrial customers across Asia, Europe, Africa, and Oceania. This far-reaching presence has not only nurtured enduring client relationships but also earned the company a respected voice and a trusted position across diverse chemical sectors worldwide.
Furuida's comprehensive product portfolio spans pharmaceutical intermediates, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, functional new materials, titanium compounds, metal salts, catalysts, and surfactants. These products play an essential role across a wide range of industries—pharmaceuticals, electronics, coatings, rubber and plastics, specialty chemicals, and water treatment. Drawing on this rich and diversified offering, Furuida remains fully dedicated to providing global customers with stable, cost-competitive chemical products and integrated one-stop solutions, each thoughtfully aligned with the evolving needs of a dynamic international marketplace.
