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  • Chlorine Dioxide
  • Chlorine Dioxide
  • Chlorine Dioxide
  • Chlorine Dioxide

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Chlorine Dioxide

Chlorine Dioxide

Basic Information

CAS No.:10049-04-4
Molecular Formula: ClO2
Molecular Weight: 67.45

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product description
Chlorine Dioxide (CAS# 10049-04-4), with the molecular formula ClO₂ and a molecular weight of 67.45. Under normal temperature and pressure, it appears as a yellowish-green to orange-yellow gas with a pungent odor. In liquid form, it is a reddish-brown liquid, and in solid form, it is an orange-red crystal. Because pure gas concentration exceeding 10% is prone to explosion, it is mostly applied in the form of stable chlorine dioxide solution or on-site preparation.


Chemical Properties

PropertyValue
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

PropertyValue
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

Chlorine dioxide is a highly effective, broad-spectrum, and safe oxidizing disinfectant, classified as an A1-level disinfectant by the World Health Organization (WHO). In water treatment, it is widely used for sterilization and disinfection of drinking water, swimming pool water, and industrial recirculating cooling water, effectively killing bacteria, viruses, and spores while producing almost no harmful byproducts such as trihalomethanes. In the food industry, it is used for fruit and vegetable preservation, as well as for cleaning and disinfecting processing equipment and packaging materials. In medical and public health fields, it can be used for air purification and surface sterilization. Additionally, it is used as a bleaching agent in the pulp and textile industries, offering advantages of high brightness and low degradation.

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Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


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A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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