Bis(chloromethyl) ether (C2H4Cl2O) is a hazardous chemical commonly used in many industries. However, its impact on the health of workers is not widely known. This article will help you understand the health risks of exposure to this chemical and how to protect yourself.
1. What is Bis(chloromethyl) ether?
This chemical has the formula C2H4Cl2O and is known as a chlorine-containing organic compound. It is an ether, with one methyl group (-CH3) bonded to an -O- group and one chlorine group (-Cl) attached to a carbon in the carbon chain. Structurally, this chemical has two chlorine atoms and one methoxy group, creating a molecule with special chemical properties.
| No. | Chemical Name in Vietnamese | Chemical Name in English | HS Code | CAS Number | Chemical Formula |
| 1. | Bis(clo metyl) ete | Bis(chloromethyl) ether | 29091900 | 542-88-1 | C2H4Cl2O |
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2. Where does Bis(chloromethyl) ether originate from in the production process?
During production, the source of C2H4Cl2O often comes from chemical reactions using chlorine-containing raw materials. This chemical is commonly created during the synthesis or production of other organic compounds, especially in the chemical, pharmaceutical, and plastics manufacturing industries.
C2H4Cl2O can appear as a byproduct during the synthesis of chlorinated compounds, or when using chemicals such as methanol, formaldehyde, or other raw materials containing chlorine groups. In the production process, if chemical reactions and production conditions are not strictly controlled, this chemical can be released into the air, onto the surface of machinery, or into industrial waste.
Additionally, in some industries that produce pesticides or agricultural chemicals, C2H4Cl2O can also be generated as an intermediate in the manufacturing process of chemical compounds containing chlorine.

3. Industries that use Bis(chloromethyl) ether in production
The chemical C2H4Cl2O is used in certain industries, particularly in the chemical and pharmaceutical manufacturing sectors. It often serves as an intermediate in chemical synthesis processes, especially in the production of chlorine-containing compounds or polymers.
One of the main industries that uses C2H4Cl2O is the plastics and rubber manufacturing industry, where this chemical is used in the creation of plastic compounds, antioxidants, or other polymers. Additionally, in the production of pesticides and agricultural chemicals, C2H4Cl2O may be used as a component in creating substances that control pests.
The pharmaceutical industry also uses C2H4Cl2O in the synthesis of complex organic compounds, especially when it is necessary to create molecules with special properties for the manufacturing of drugs or specific therapeutic treatments.
4. How does Bis(chloromethyl) ether affect workers?
When workers are exposed to C2H4Cl2O, they can experience serious health effects, especially with prolonged exposure or at high concentrations. One of the first impacts workers might feel is irritation to the respiratory system. This chemical is volatile and can create toxic gases when exposed to air. Upon inhalation, workers may experience symptoms such as coughing, difficulty breathing, sore throat, and bronchitis.
Furthermore, C2H4Cl2O can also affect the skin and eyes upon direct contact. People working in environments containing this chemical may experience skin irritation, rashes, or dermatitis. In case of eye contact, it can cause severe burns or eye irritation, leading to reduced vision.
Moreover, studies have shown that C2H4Cl2O can cause long-term health effects, especially with continuous exposure in the workplace. One of the greatest risks is its effect on the nervous system, as this chemical can enter the body and accumulate in tissues, leading to neurological problems such as headaches, dizziness, lack of concentration, and even behavioral disorders.
5. Permissible safe concentration of Bis(chloromethyl) ether for human exposure
To ensure worker safety when exposed to C2H4Cl2O, health agencies and occupational safety organizations have established permissible safe concentration limits in the air. This concentration is determined based on studies of the chemical’s effects on the human body and its level of impact on health upon exposure in the workplace.
According to international standards, the safe concentration of C2H4Cl2O in the air is very low. For example, in a work environment, the maximum permissible concentration is often set at around 0.1 ppm (parts per million) for a one-hour work period.

On a basic level, when working in an industrial environment, it is important to comply with safety standards and limit exposure to Bis(chloromethyl) ether. Organizations such as the Occupational Safety and Health Administration (OSHA) in the United States provide guidelines and safety principles to protect workers from the negative effects of chemical substances.
6. Measures to minimize the effects of Bis(chloromethyl) ether on worker health
To minimize the health effects of C2H4Cl2O on workers, protective measures must be implemented strictly and comprehensively in the workplace. First and foremost, controlling the concentration of this chemical in the air is crucial. Effective ventilation systems, including exhaust hoods and air filtration, must be installed and operated continuously to maintain a safe working environment and minimize the level of C2H4Cl2O in the air, especially in high-risk areas.
In addition, personal protective measures must be strictly applied. Workers must be fully equipped with protective gear such as chemical-resistant masks, gloves, safety goggles, and full-body protective clothing. Specialized masks can prevent the inhalation of C2H4Cl2O dust particles or vapors, helping to protect the respiratory system of workers from adverse effects. At the same time, gloves and protective clothing help minimize the possibility of direct skin contact with this chemical.
Besides using personal protective equipment, training and raising awareness among workers about the risks associated with C2H4Cl2O is essential. A clear understanding of the harms of this chemical and how to use protective equipment correctly will help reduce the risk of occupational diseases.
Finally, conducting regular health check-ups for workers also plays an important role in the early detection of health problems related to C2H4Cl2O exposure. Medical specialists should monitor and assess the health status of workers to promptly detect and treat health issues arising from the work environment.
Occupational safety training: Workers need to be trained and educated about the risks and safety measures when working with this type of chemical. This training should be provided periodically and regularly to ensure understanding and proper compliance with safety rules.
Periodically organize occupational environment monitoring in factories and enterprises, collecting and analyzing factors harmful to workers, thereby adjusting to reduce the level of risk to prevent occupational diseases for them.
7. National Occupational Environment Monitoring Center
The occupational environment monitoring center of Nam Viet is a professional unit specializing in monitoring and measuring the quality of the working environment across all provinces in Vietnam. With a team of experienced monitoring specialists, the center uses modern measuring equipment, ensuring accuracy and reliability.
REGISTER FOR OCCUPATIONAL ENVIRONMENT MONITORING SERVICES
In addition to providing monitoring services, the center also supports clients in planning, handling, and tracking occupational environment issues. With the motto “the customer is the center,” the center focuses on customer satisfaction, meeting all customer needs, and is committed to providing the best solutions for businesses.
With investment in techniques, technology, and human resources, Nam Viet’s monitoring center has become one of the reputable units in the field of occupational environment monitoring in Ho Chi Minh City with the following objectives:
- We always value our brand reputation and the quality of our products and services.
- We provide our customers with the best and most suitable options possible.
- With a team of experienced Masters and Engineers with expertise and a desire to protect the environment and benefit businesses.

- With the Nam Viet Environmental Monitoring team, your company will receive professional service from experts in the monitoring field. At the same time, you will get the best cost incentives.
8. Quotation for Occupational Environment Monitoring
To help businesses conduct occupational environment monitoring professionally and effectively, Nam Viet offers our customers a quality and reasonably priced quotation for occupational environment monitoring services.
- Our quotation provides detailed information on the prices of the monitoring services we offer. This includes costs related to travel, measurement, analysis, and reporting of results. Customers can be completely assured of the accuracy and reliability of the monitoring result reports we provide.
- We are committed to always offering the most competitive and reasonable prices on the market, and we are also always ready to provide advice and answer any questions about monitoring services quickly and professionally.
- With Nam Viet’s quotation, customers can easily choose service packages that suit their needs. We are committed to bringing our customers the highest satisfaction with professional service quality.

