The chemical Diethyl dichloro silane (C4H10Cl2Si) is not only an important component in the production process but also carries risks to the health of workers. This article will specifically analyze the impact of this substance on health and preventive measures in the work environment.
1. What is Diethyl dichloro silane?
Diethyl dichloro silane, also abbreviated as DEDCS, is a chemical compound with the formula C4H10Cl2Si. Known as a type of silane compound, it contains two chlorine (Cl) atoms, four carbon (C) atoms, and one silicon (Si) atom. Its chemical formula shows the coordination ratio of these elements in the molecule.
The chemical properties of Diethyl dichloro silane make it useful in many industrial applications. With the ability to form strong silicon-carbon bonds, this compound is often used in the synthesis of organic compounds, especially in creating compounds containing silicon bonds. It can also be used in the synthesis of other organic compounds, as a reactant or conditioning agent.
| No. | Chemical Name in Vietnamese | Chemical Name in English | HS Code | CAS Number | Chemical Formula |
| 1. | Dietyl diclo silan | Diethyl dichloro silane | 29319090 | 1719-53-5 | C4H10Cl2Si |
See more services chemical safety training according to Decree 113/2017/ND-CP
REGISTER FOR CHEMICAL SAFETY TRAINING ACCORDING TO DECREE 113
2. Where does Diethyl dichloro silane originate from in the production process?
Diethyl dichloro silane is an important chemical compound used in many industrial applications, including the production of silicone materials, pesticides, and other organic compounds. The production process of diethyl dichloro silane typically starts from the main raw materials: silicon tetrachloride (SiCl4) and ethyl chloride (C2H5Cl).
During production, silicon tetrachloride and ethyl chloride are reacted together in a system to create an intermediate product, 1,2-Diethyl-1,2-dichloro disilane. Then, this intermediate product continues to undergo a hydrolysis process to form diethyl dichloro silane and byproducts depending on reaction conditions, such as water and hydrochloric acid.
The main raw material, silicon tetrachloride, is often produced from the refining process of silicon ore or from other production processes such as sulfur or titanium ore processing. Ethyl chloride is often produced from ethanol through a reaction with hydrochloric acid. The production process of diethyl dichloro silane usually requires high technical control and strict operating conditions to ensure the efficiency and quality of the final product.

3. Industries that use Diethyl dichloro silane in production
In the chemical and manufacturing industries, Diethyl dichloro silane (DEDCS) has become an important component in the production processes of many different sectors. Although it may not be a common chemical, its role in industrial production and development cannot be denied. Specifically, DEDCS is widely used in fields such as silicon technology, drug manufacturing, and the production of cooling fluids.
In silicon technology, DEDCS is often used as a starting material in the silicon synthesis process, an important procedure to create high-grade silicon products like polycrystalline silicon (polysilicon) used in the manufacturing of solar panels and electronic chips. DEDCS plays a key role in combining with other compounds to create complex reactions, yielding high-quality silicon products.
In addition, in the drug manufacturing industry, DEDCS is used as a thickener and intermediate in the synthesis process of many types of pharmaceuticals. With its strong reactive properties and ability to interact with many different types of chemical molecules, DEDCS helps increase production efficiency and the quality of drug products.
4. How does Diethyl dichloro silane affect workers
Diethyl dichloro silane (abbreviated as DEDCS) is a toxic chemical compound that can cause many adverse health effects to workers if exposed regularly or without safety protection. Below are some of the effects of DEDCS on workers:
Respiratory system: DEDCS is a strong respiratory irritant. When inhaled, it can cause symptoms such as coughing, difficulty breathing, sore throat, runny nose, and even pulmonary edema. If exposed to high concentrations for a long time, DEDCS can cause lung diseases such as asthma and chronic bronchitis.
Skin and eyes: DEDCS can cause skin and eye irritation. Contact with this substance can cause symptoms such as redness, itching, blistering, and corneal damage. In severe cases, it can lead to vision loss.
Nervous system: DEDCS can cause adverse effects on the central nervous system. Neurological symptoms may include headache, dizziness, nausea, fatigue, and loss of coordination. Severe cases can lead to seizures and coma.
Cancer risk: Some studies suggest that DEDCS may be linked to causing cancer. More research is needed to definitively determine this effect, but it is best to limit exposure to DEDCS to ensure safety.
Other effects: DEDCS can also cause other health effects such as nausea, diarrhea, dizziness, and liver damage.
To protect workers from the effects of DEDCS, strict preventive measures must be implemented. It is important to use appropriate personal protective equipment such as protective clothing, respirators, and eye protection. The work environment also needs to be well-ventilated to minimize the concentration of DEDCS in the air.
5. Permissible safe concentration of Diethyl dichloro silane for human exposure
Diethyl dichloro silane (DDCS) is a chemical compound that requires safety consideration upon exposure. Like many other chemicals, DDCS can cause adverse health effects if exposed at high concentrations. To ensure safety, establishing a safe (occupational) exposure limit is essential.
The permissible safe concentration of Diethyl dichloro silane (DDCS) for human exposure is regulated by reputable occupational health organizations. One of the commonly used reference concentrations is the Occupational Exposure Limit (OEL). The OEL establishes the maximum concentration of a chemical considered safe for exposure over a specific period (usually 8 hours/day and 40 hours/week).
Currently, there is no specific Vietnamese standard for the safe concentration of DDCS. However, we can refer to reputable international organizations such as ACGIH (American Conference of Governmental Industrial Hygienists). According to ACGIH, the OEL for DDCS is 20 ppm (parts per million by volume).

At a basic level, if working in an industrial environment, it is important to adhere to safety standards and limit exposure to Diethyl dichloro silane. 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 Diethyl dichloro silane on workers’ health
Measures to minimize the effects of Diethyl dichloro silane (DEDCS) on workers’ health are an indispensable part of the work process with this substance. DEDCS is a chemical compound widely used in many industries, especially in the production of silicone and rubber products. However, exposure to DEDCS can cause harmful effects on the health of workers, including problems with the respiratory system, skin, and eyes.
An important measure to minimize the risk of exposure to DEDCS is the use of occupational safety measures. This includes ensuring ventilation during the work process by using effective ventilation systems and personal protective equipment such as masks, goggles, and gloves.
In addition, creating separate work areas with proper exhaust systems also plays an important role in minimizing exposure to DEDCS. This helps limit the spread of the compound in the work environment and reduces the risk of unwanted exposure.
Furthermore, training and raising awareness for employees about the risks of DEDCS is also an important measure. By understanding the properties and mode of action of this substance, workers can apply personal protection measures more effectively and minimize the risk to their 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 frequently to ensure understanding and proper compliance with safety rules.
Periodically organize workplace environment monitoring in factories and enterprises, collect and analyze factors harmful to workers, and from there, adjust to reduce hazard levels to prevent occupational diseases for them.
7. Nationwide workplace environment monitoring center
Nam Viet’s workplace environment monitoring center is a professional unit for monitoring and measuring the quality of the working environment in all provinces and cities in Vietnam. With a team of experienced monitoring specialists, the center uses modern measuring equipment, ensuring accuracy and reliability.
REGISTER FOR WORKPLACE ENVIRONMENT MONITORING SERVICE
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, meets 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 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 customers with the best and most suitable things possible.
- With a team of experienced and specialized Masters and Engineers, we desire to protect the environment and bring benefits to businesses.

- Coming to 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. Workplace environment monitoring quotation
To help businesses carry out workplace environment monitoring professionally and effectively, Nam Viet provides customers with a quality and reasonably priced quotation for workplace environment monitoring services.
- Our monitoring 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 commit to always offering the most competitive and reasonable prices on the market, and we are also always ready to consult and answer any questions about monitoring services quickly and professionally.
- With Nam Viet’s monitoring quotation, customers can easily choose service packages that suit their needs. We are committed to bringing customers the highest satisfaction with professional service quality.

