As a reliable supplier of the substance with CAS 106 - 65 - 0, also known as methyl acrylate, I understand the critical importance of in - depth knowledge about its acute toxicity levels for our customers. Acute toxicity refers to the adverse effects that occur either immediately or shortly after a single exposure or multiple exposures in a short period to a chemical substance.
Acute Toxicity Routes
Acute toxicity of methyl acrylate can be evaluated through different routes of exposure, including inhalation, ingestion, and dermal contact.
Inhalation
Inhalation is one of the most common ways of exposure, especially in industrial settings. Methyl acrylate vapors are highly irritating to the respiratory tract. When inhaled, it can cause symptoms such as coughing, wheezing, shortness of breath, and nasal or throat irritation. High - level inhalation exposure can lead to more severe conditions like chemical pneumonitis, which is inflammation of the lungs due to the inhalation of a chemical. In some cases, it can even cause pulmonary edema, a life - threatening condition where fluid accumulates in the lungs.
Studies have shown that the LC50 (lethal concentration 50%, the concentration of a substance in the air that is expected to kill 50% of the test animals when inhaled over a specified period) of methyl acrylate for rats is approximately 104 ppm (parts per million) over a 4 - hour exposure period. This value indicates a relatively high acute toxicity via inhalation. For workers in industries where methyl acrylate is used, proper ventilation systems are crucial to prevent the accumulation of its vapors in the air.
Ingestion
Ingestion of methyl acrylate can cause serious harm to the gastrointestinal tract. It is corrosive and can damage the lining of the mouth, esophagus, and stomach. Symptoms of ingestion may include nausea, vomiting, abdominal pain, and in severe cases, internal bleeding. The LD50 (lethal dose 50%, the dose of a substance that is expected to kill 50% of the test animals when administered orally) of methyl acrylate for rats is around 78 mg/kg. This relatively low LD50 value implies that even a small amount of ingestion can be very dangerous. In case of accidental ingestion, immediate medical attention should be sought.
Dermal Contact
Methyl acrylate can also cause significant damage to the skin upon contact. It is a strong skin irritant and can cause redness, swelling, and blistering. Prolonged or repeated dermal exposure may lead to skin sensitization, a condition where the skin becomes hypersensitive to the substance, resulting in more severe allergic reactions upon subsequent contact. The dermal LD50 for rabbits is approximately 200 mg/kg, indicating that the skin can absorb methyl acrylate, and direct contact should be avoided.
Regulatory Standards and Safety Measures
Given the acute toxicity of methyl acrylate, various regulatory bodies have established strict standards and guidelines. For example, the Occupational Safety and Health Administration (OSHA) in the United States has set a permissible exposure limit (PEL) of 10 ppm for methyl acrylate in the workplace air averaged over an 8 - hour workshift.
As a supplier, we always adhere to these safety regulations. We provide our customers with detailed safety data sheets (SDS) that contain comprehensive information about the acute toxicity levels, handling procedures, and first - aid measures of methyl acrylate. We also offer guidance on proper storage conditions, which should be in a cool, well - ventilated place away from sources of ignition as methyl acrylate is flammable.
Comparison with Other Chemicals
To put the acute toxicity of methyl acrylate into perspective, let's compare it with some other chemicals. For instance, Benzyl Acrylate/BZA CAS 2495 - 35 - 4 has a relatively lower acute toxicity. Benzyl acrylate is also used in various industrial applications, but its LD50 and LC50 values are higher than those of methyl acrylate, meaning that a larger dose or concentration is required to cause the same level of harm.
On the other hand, 5 - Hydroxy - 1 - methylpyrazole CAS 33641 - 15 - 5, which is used in some pharmaceutical and chemical synthesis processes, has a different toxicity profile. While it may have its own set of potential hazards, its acute toxicity via inhalation and ingestion is generally not as high as that of methyl acrylate.
Another example is Manganese Chloride Anhydrous CAS 7773 - 01 - 5. Manganese chloride anhydrous is mainly used in the production of dry - cell batteries and other industrial processes. Its acute toxicity is also different from methyl acrylate, with different target organs and symptoms of toxicity.
Our Commitment as a Supplier
As a supplier of methyl acrylate, we are committed to ensuring the safety of our customers. Our products are of high - quality and are carefully tested to meet all relevant safety standards. We also provide continuous support to our customers in terms of safety training and technical advice.
We understand that different customers may have different requirements regarding the use of methyl acrylate. Whether you are using it in a research laboratory, a small - scale production facility, or a large - scale industrial plant, we can offer customized solutions to meet your specific needs.
Conclusion
In conclusion, methyl acrylate (CAS 106 - 65 - 0) has significant acute toxicity through inhalation, ingestion, and dermal contact. It is essential for all users to be well - informed about its potential hazards and to take appropriate safety measures. As a trusted supplier, we are here to provide you with not only high - quality methyl acrylate but also all the necessary information and support to ensure its safe use.
If you are interested in purchasing methyl acrylate or have any questions related to its acute toxicity, handling, or application, please feel free to contact us for a detailed discussion and procurement negotiation. We look forward to working with you to meet your chemical needs safely and effectively.
References
- Agency for Toxic Substances and Disease Registry (ATSDR). Toxicological Profile for Acrylates.
- Occupational Safety and Health Administration (OSHA). Permissible Exposure Limits.
- Various scientific research papers on the acute toxicity of methyl acrylate published in peer - reviewed journals.
