Methyl thiocyanate (C2H3NS), a chemical commonly used in manufacturing plants, can cause serious health effects for workers. This article will explore the dangerous impacts of methyl thiocyanate and the measures to protect workers when exposed to this chemical.
1. What is Methyl thiocyanate (Thiocyanic acid, methyl ester)?
Methyl thiocyanate (also known as Thiocyanic acid, methyl ester) with the chemical formula C2H3NS, is an organic compound belonging to the thiocyanate group. This chemical has a molecular structure consisting of a methyl group (CH3) bonded to a thiocyanate group (–SCN), creating the formula C2H3NS.
Methyl thiocyanate is a colorless, volatile liquid with a pungent, characteristic odor. It is widely used in the chemical industry, especially in the production processes of pesticides, plastics, and other chemical compounds. Methyl thiocyanate is also used in some research and chemical synthesis applications.
This chemical is quite toxic and can easily endanger human health if not used or handled correctly. A clear understanding of the chemical properties of methyl thiocyanate helps scientists and engineers to manage and control risks when working with it in an industrial environment.
| No. | Chemical Name in Vietnamese | Chemical Name in English | HS Code | CAS Number | Chemical Formula |
| 1. | Metyl thioxyanat | Methyl thiocyanate (Thiocyanic acid, methyl ester) | 29309090 | 556-64-9 | C2H3NS |
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2. Where does Methyl thiocyanate (Thiocyanic acid, methyl ester) originate from during the production process?
During the production process, this compound can arise from various sources, mainly in stages related to chemicals containing the thiocyanate group or in chemical synthesis reactions. It commonly appears in factories producing pesticides, plastics, and sulfur-containing organic compounds.
Additionally, methyl thiocyanate can also be generated in chemical processes when substances like methanol or sulfur-containing compounds react with sources that produce the thiocyanate group, such as thiocyanic acid or thiocyanate salts. This can occur in industrial reactions to create useful products but also simultaneously generate this toxic chemical.
Other major sources can be in wood processing plants, rubber production, or when using chemicals containing methyl and thiocyanate groups in industrial products. Depending on the process and materials used, methyl thiocyanate can be generated at various stages of the production process.

3. Industries that use Methyl thiocyanate (Thiocyanic acid, methyl ester) in production
This compound is used in several industries related to the production of chemicals and materials. One of the main industries using methyl thiocyanate is the pesticide manufacturing industry, where this compound is used as a key component in the synthesis of various plant protection products. This chemical has the ability to create compounds with bactericidal, fungicidal, and insecticidal properties, helping to protect crops and agricultural products.
In addition, methyl thiocyanate is also applied in the plastic and rubber processing industry. It is used to create additives, especially in the production of high-tech plastics and composite materials. In the wood processing industry, this compound is also used in the manufacturing of plywood and wood preservatives.
The pharmaceutical industry also has some applications for methyl thiocyanate, especially in the synthesis of biologically active compounds used to produce drugs for treating diseases. Furthermore, this compound is used in other industries such as the production of dyes, synthetic chemicals, and in chemical research processes.
4. How does Methyl thiocyanate (Thiocyanic acid, methyl ester) affect workers?
When exposed to this compound, workers can experience many adverse health effects, especially in industrial environments where exposure levels are high. Inhaling vapor or gas from methyl thiocyanate can cause respiratory irritation, leading to symptoms such as coughing, shortness of breath, and chest pain. Additionally, direct contact with the skin and eyes can cause dermatitis, eye redness, or other serious skin problems.
This chemical has the potential to be toxic to the nervous system if workers are exposed for long periods or at high levels. Symptoms include headaches, dizziness, nausea, and fatigue. In cases of severe exposure, methyl thiocyanate can affect the digestive system, causing problems such as nausea, vomiting, and abdominal pain. The risk of health damage is particularly high for workers with a history of respiratory or skin conditions.
In addition to short-term effects, long-term exposure to methyl thiocyanate can lead to more serious health problems, including the risk of lung diseases or damage to the liver and kidneys. Studies have shown that these toxic substances can accumulate in the body over time, affecting internal organs and reducing the body’s resistance to diseases.
5. Permissible safe concentration of Methyl thiocyanate (Thiocyanic acid, methyl ester) for human exposure
The permissible safe concentration for exposure to this compound is regulated by health and occupational safety organizations to protect workers from adverse effects. According to the standards of the U.S. Occupational Safety and Health Administration (OSHA), the concentration of methyl thiocyanate in the air should not exceed 0.5 ppm (parts per million) over an 8-hour workday. This level is considered safe for most workers in an industrial environment.
In addition, international organizations such as the World Health Organization (WHO) and other environmental control agencies also recommend limit concentrations for methyl thiocyanate in the air. These levels are established based on research and analysis of the long-term and short-term health effects of this compound, aiming to minimize the risk of poisoning or bodily harm from prolonged exposure.
When the concentration of methyl thiocyanate exceeds the safe limit, the risk of health impacts on workers increases. Therefore, adhering to safety standards for concentration and implementing protective measures during work is crucial to ensure worker health.

On a basic level, if working in an industrial environment, it is important to comply with safety standards and limit exposure to Methyl thiocyanate. Organizations like 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 health effects of Methyl thiocyanate (Thiocyanic acid, methyl ester) on workers
To minimize the health effects of this compound on workers, protective measures must be strictly applied in the workplace. One of the key measures is to control the concentration of methyl thiocyanate in the air. Using an effective ventilation system, including exhaust fans and air filtration systems, can help reduce the concentration of the chemical in the air, thereby minimizing the risk of inhalation by workers.
In addition, providing personal protective equipment (PPE) for workers is extremely necessary. In particular, wearing a respirator with an appropriate filter can protect workers from inhaling harmful chemical vapors. Furthermore, the use of gloves, protective clothing, and safety goggles will help limit direct contact with the skin and eyes, thus reducing the risk of skin damage or eye problems.
Training and raising awareness about the dangers of methyl thiocyanate also play a crucial role in protecting workers’ health. Workers need to be instructed on the potential risks of exposure to this compound, preventive measures, and emergency procedures in case of an incident. Implementing regular health monitoring also helps in the early detection of abnormal symptoms and allows for timely intervention.
Finally, compliance with occupational safety regulations and guidelines, including permissible exposure limits, will help minimize the negative impact on workers’ health.
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 hazard levels to prevent occupational diseases for them.
7. National Occupational Environment Monitoring Center
Nam Viet’s Occupational Environment Monitoring Center is a professional unit for 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.
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In addition to providing monitoring services, the center also supports clients in planning, handling, and tracking issues related to the occupational environment. With the motto “the customer is the center,” the center focuses on customer satisfaction, meeting all of the client’s needs, and committing 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 solutions possible.
- With a team of experienced Masters and Engineers with 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 carry out occupational environment monitoring professionally and effectively, Nam Viet offers our valued customers a price list for occupational environment monitoring services that is high-quality and reasonably priced.
- Our price list provides detailed information about 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 consultation and answer any questions about our monitoring services quickly and professionally.
- With Nam Viet’s price list, customers can easily choose service packages that suit their needs. We are committed to bringing our customers the highest satisfaction with professional quality service.

