Calcium chlorate, a common chemical compound, is raising concerns about its impact on workers’ health. This article will delve into the negative effects that can arise from exposure to this substance in the workplace. At the same time, we will examine safety measures and recommendations to protect the health of those working with calcium chlorate.
1. What is Calcium chlorate?
Calcium chlorate (Ca(ClO3)2) is a chemical compound formed from calcium ions (Ca2+) and chlorate ions (ClO3-). It is a salt of chloric acid (HClO3). Calcium chlorate typically appears as a white powder or colorless crystals.
This compound is commonly used in industrial applications, especially in the production of fireworks and fire retardants. The chemical properties of calcium chlorate allow it to produce oxygen when subjected to high temperatures, making it an important component in explosive mixtures and pyrotechnics.
| No. | Chemical Name in Vietnamese | Chemical Name in English | HS Code | CAS Number | Chemical Formula |
| 1. | Canxi clorat | Calcium chlorate | 28291900 | 10037-74-3 | Ca(ClO3)2 |
See more services chemical safety training according to Decree 113/2017/ND-CP
2. What is the source of Calcium chlorate in the production process?
Calcium chlorate (Ca(ClO3)2) is typically produced through a complex chemical process, using compounds and chemical conversion methods. One of the most common methods to produce calcium chlorate is by dissolving calcium hydroxide (Ca(OH)2) in chloric acid (HClO3) or a chlorine solution generated from chlorine gas. This reaction produces calcium chlorate solution and water:
Afterward, the calcium chlorate solution can be separated and purified to obtain the final product in the form of a white powder or colorless crystals.
The production process of calcium chlorate requires special attention to safety and technical procedures to ensure that production is carried out efficiently and safely.

3. Industries that use Calcium chlorate in production
Calcium chlorate (Ca(ClO3)2) is used in several different industries due to its special chemical properties. Here are some common industries that use calcium chlorate in production:
- Fireworks Production: Calcium chlorate is an important component in explosive mixtures and fireworks. When subjected to high temperatures, it produces oxygen, helping to enhance the performance and effects of fireworks.
- Fire Retardants: Calcium chlorate can be used in some fire-retardant products and flameproofing agents, such as for wood and building materials.
- Chemical Industry: Chemical manufacturing companies may use calcium chlorate as a raw material to produce other chemical compounds.
- Paper Processing: Calcium chlorate is used in the paper production process for bleaching paper. It helps remove organic matter and create a smooth paper surface.
- Oil Processing: In some applications, calcium chlorate may also be used in the oil processing industry.
4. How does Calcium chlorate affect workers
Calcium chlorate can affect the health of workers if they have direct or improper contact with this substance during production or use. Here are some possible effects:
- Skin and Eye Irritation: Direct contact with calcium chlorate can cause irritation to the skin and eyes. This can lead to redness, itching, or irritation if proper safety measures are not in place.
- Respiratory Risk: Calcium chlorate dust can pose a respiratory risk when it becomes airborne. Workers may inhale it, causing respiratory and lung problems.
- Explosion Risk: In industries producing fireworks or explosives, workers may face an explosion risk if safety measures are not followed during the handling and use of calcium chlorate.
To minimize risks, the use and handling of calcium chlorate must adhere to strict safety measures. This includes wearing personal protective equipment, limiting direct contact, and using appropriate protective gear. Additionally, safety training and adherence to environmental regulations are also very important to protect worker health.
5. Permissible safe concentration of Calcium chlorate for human exposure
The permissible safe concentration of calcium chlorate for human exposure depends on many factors, such as the type of contact (direct skin contact, inhalation, or eye contact), duration of exposure, and working conditions. Specific safety regulations may be determined by safety management organizations like the Occupational Safety and Health Administration (OSHA) in the United States or similar agencies in other countries.
In industrial and occupational environments, determining safe concentrations is typically done through occupational safety standards. Safe concentrations are usually specified to ensure that workers do not face general risks and do not experience health problems if safety measures are followed.

6. Measures to minimize the impact of Calcium chlorate on worker health
To minimize the impact of Calcium chlorate on worker health, the following safety measures and regulations can be implemented:
- Wear Personal Protective Equipment (PPE): Workers should wear personal protective equipment such as safety goggles, respirators, gloves, and protective clothing to protect skin, eyes, and respiratory tract from direct contact with Calcium chlorate.
- Safe Work Procedures: Train workers on how to use and handle Calcium chlorate safely. This includes instructions on storing this substance, usage procedures, and explosion control measures.
- Vacuum and Ventilation Systems: Use effective vacuum and ventilation systems to reduce the amount of Calcium chlorate dust and vapor in the work environment.
- Regular Monitoring: Conduct periodic checks of Calcium chlorate concentration in the air to ensure the work environment does not exceed safe limits.
- Waste Management: Ensure the disposal and treatment process for Calcium chlorate waste is carried out correctly to prevent this substance from entering the surrounding environment.
- Implement Health Surveillance: Conduct regular health monitoring for workers to detect early any problems that may arise from exposure to Calcium chlorate.
- Periodically organize occupational environment monitoring in factories and enterprises, collect and analyze 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 an experienced team of monitoring specialists, the center uses modern measuring equipment, ensuring accuracy and reliability.
REGISTER FOR OCCUPATIONAL ENVIRONMENT MONITORING SERVICE
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, 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 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 customers with the best and most suitable things possible.
- Along with a team of experienced and specialized Masters and Engineers with a desire to protect the environment and benefit businesses.

- Coming to Nam Viet’s 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 conduct 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 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 commit to bringing our customers the highest satisfaction with professional service quality.

