Methylamine (CH5N) is a common chemical in many manufacturing plants, but few people know that it can cause serious effects on workers’ health. From acute poisoning symptoms to long-term health problems, this article will help you better understand the impact of methylamine and how to protect yourself.
1. What is Methylamine?
The chemical formula CH5N represents an organic compound belonging to the amine group. Methylamine is a primary amine, with a simple structure of a methyl group (CH3) linked to a nitrogen atom (N). This compound is volatile, has a pungent odor, and can exist as a colorless liquid or a transparent vapor.
| No. | Chemical Name in Vietnamese | Chemical Name in English | HS Code | CAS Number | Chemical Formula |
| 1. | Methylamin | Methylamine | 29211100 | 74-89-5 | CH5N |
See more: Chemical safety training services according to Decree 113/2017/NĐ-CP
REGISTER FOR CHEMICAL OCCUPATIONAL SAFETY TRAINING ACCORDING TO DECREE 113
2. Where does Methylamine originate from in the production process?
During the production process, methylamine can arise from various sources. One of the main sources is the decomposition or reaction of nitrogen-containing compounds, especially ammonia. When ammonia reacts with formaldehyde under certain conditions, methylamine is formed as a byproduct. This process typically occurs in chemical plants where raw materials are processed and synthesized into other products.
In addition, methylamine can also appear from other production processes, such as the manufacturing of dyes, pesticides, and other chemicals.

3. Industries that use Methylamine in production
Many industries use methylamine in their production processes, especially in the chemical sector. One of the most common applications is in the pharmaceutical industry, where methylamine is used to synthesize organic compounds necessary for drug production. It is also applied in the manufacturing of various therapeutic drugs, helping to improve human health.
The chemical industry also uses methylamine to produce colorants and dyes. These substances are often used in the production of fabrics, plastics, and other consumer goods. Besides, methylamine also plays a crucial role in the production of pesticides, helping to control pests in agriculture and improve crop yields.
In addition, methylamine is also present in the food industry, where it is used as an additive in some food processing procedures.
4. How does Methylamine affect workers?
Methylamine can cause many negative health effects for workers upon contact in the work environment. Inhaling smoke, vapor, or dust from methylamine can lead to acute poisoning symptoms, such as headache, dizziness, nausea, and difficulty breathing. These symptoms can occur immediately or develop over time, especially if workers are exposed continuously or at high levels.
In addition, methylamine can also cause skin and eye irritation, leading to issues like dermatitis or conjunctivitis. With prolonged contact, more serious health problems can arise, including damage to the respiratory and nervous systems. Some studies also suggest that long-term exposure to methylamine can increase the risk of chronic diseases, affecting the quality of life and work capability of employees.
Besides the direct health impacts, exposure to methylamine can also create psychological concerns for workers. The feeling of insecurity about being exposed to a toxic chemical can lead to stress and anxiety, negatively affecting work morale and productivity.
5. Permissible safe concentration of Methylamine for human exposure
The permissible safe concentration of methylamine for human exposure is regulated to protect workers’ health. According to international standards and guidelines from organizations like OSHA (Occupational Safety and Health Administration) and ACGIH (American Conference of Governmental Industrial Hygienists), the maximum permissible concentration of methylamine in the workplace air is typically set at 10 ppm (parts per million) for an 8-hour workday.
For different work environments, the safe concentration may vary, depending on the conditions and duration of exposure. When the concentration of methylamine exceeds the prescribed level, the health risk for workers increases, leading to poisoning symptoms and long-term health damage.

On a basic level, if working in an industrial environment, adhering to safety standards and limiting exposure to Methylamine is important. Organizations like the Occupational Safety and Health Administration (OSHA) in the United States provide guidelines and safety principles to protect workers from the negative impacts of chemical substances.
6. Measures to minimize the effects of Methylamine on workers’ health
To minimize the effects of methylamine on workers’ health, it is necessary to apply many effective protective and safety management measures. First, training employees on the risks associated with methylamine is crucial. Workers need to clearly understand how to recognize danger signs, as well as the necessary preventive measures when working with this chemical.
Second, improving the ventilation system in the work area is one of the key measures to reduce the concentration of methylamine in the air. A good ventilation system helps to exchange air, remove dust and toxic vapors, thereby ensuring a safer working environment. Devices for measuring methylamine concentration should also be installed for continuous monitoring, helping to promptly detect changes in chemical levels.
In addition, providing personal protective equipment for workers, such as specialized masks, gloves, and safety goggles, is also essential. This equipment helps prevent direct contact with methylamine, effectively protecting workers’ health.
Finally, establishing safe procedures for handling and storing methylamine also plays a significant role in minimizing risks. This includes storing the chemical in sealed containers, arranging the workspace appropriately, and implementing emergency response procedures in case of an incident. By applying these measures comprehensively, businesses can protect the health of their workers and ensure safety during production.
Occupational safety training: Workers need to be trained and educated on 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 workplace environment monitoring in factories and enterprises, collecting and analyzing factors harmful to workers, thereby adjusting to reduce the hazard level to prevent occupational diseases for them.
7. National Workplace Environment Monitoring Center
Nam Viet’s Workplace Environment Monitoring Center 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 WORKPLACE ENVIRONMENT MONITORING SERVICES
In addition to providing monitoring services, the center also supports clients in planning, handling, and tracking workplace environment issues. With the motto “the customer is the center,” the center focuses on customer satisfaction, meeting all customer needs, and committing to providing the best solutions for businesses.
With investment in technology, engineering, and human resources, Nam Viet’s monitoring center has become one of the reputable units in the field of workplace 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 and specialized Masters and Engineers, we aim 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. You will also get the best deals on costs.
8. Quotation for Workplace Environment Monitoring
To help businesses conduct workplace environment monitoring professionally and effectively, Nam Viet offers our customers a high-quality and reasonably priced quotation for workplace 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 our 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 our professional service quality.

