Nov 28, 2025Leave a message

What is the molecular structure of TDCPP - LS?

Hey there! As a supplier of TDCPP - LS, I often get asked about the molecular structure of this compound. So, let's dive right in and break it down.

First off, TDCPP - LS stands for Tris(1,3 - dichloro - 2 - propyl) phosphate - Low Smoke. It's a well - known flame retardant that's used in a variety of applications, from textiles to plastics. Understanding its molecular structure is key to grasping how it works and why it's so effective.

The basic chemical formula of TDCPP - LS is C₉H₁₅Cl₆O₄P. When we look at the molecular structure, we can start by focusing on the phosphate group. At the heart of the molecule, there's a central phosphorus atom (P). This phosphorus atom is bonded to four oxygen atoms. Three of these oxygen atoms are in a single - bond state with propyl groups, and one is in a double - bond state with the phosphorus atom, forming the characteristic phosphate group.

The propyl groups attached to the phosphate oxygen atoms are where things get a bit more interesting. Each propyl group has two chlorine atoms attached to the second carbon atom in the chain. This is where the "dichloro" part in the name comes from. The presence of these chlorine atoms is crucial for the flame - retardant properties of TDCPP - LS.

When a fire occurs, the chlorine atoms in TDCPP - LS are released as chlorine radicals. These radicals react with the highly reactive hydrogen and hydroxyl radicals in the flame, effectively interrupting the chain reaction that sustains the fire. This is a common mechanism for many halogen - based flame retardants.

Now, let's talk about how TDCPP - LS compares to some other flame retardants in the market. For example, Phosphoric Acid 1,3 - phenylene Tetrakis(2,6 - dimethylphenyl) Ester is a different type of flame retardant. It has a more complex aromatic structure centered around a phenylene group. Unlike TDCPP - LS, it doesn't rely on halogen atoms for its flame - retardant action. Instead, it works by forming a char layer on the surface of the material when exposed to heat. This char layer acts as a barrier, preventing oxygen and heat from reaching the underlying material.

Another popular flame retardant is Tris(chloropropyl) Phosphate TCPP - LO. Similar to TDCPP - LS, it contains chlorine atoms and a phosphate group. However, TCPP - LO has a different substitution pattern on the propyl groups. It has only one chlorine atom on each propyl group, which might result in slightly different flame - retardant performance compared to TDCPP - LS.

Cresyl Diphenyl Phosphate is yet another option. It's an organophosphate flame retardant with a structure that includes a cresyl group and two phenyl groups attached to the phosphate. It offers good plasticizing and flame - retardant properties, but its mode of action is more about diluting the combustible components in the material and reducing the flammability through physical means.

One of the advantages of TDCPP - LS is its low - smoke property. In a fire situation, smoke can be just as dangerous as the flames themselves. The low - smoke characteristic of TDCPP - LS means that it releases less smoke when the material it's added to catches fire. This is a huge plus, especially in enclosed spaces like buildings or vehicles, where smoke inhalation can quickly become life - threatening.

In terms of applications, TDCPP - LS is widely used in the textile industry. It can be added to fabrics during the manufacturing process to make them more resistant to fire. This is particularly important for items like curtains, upholstery, and children's clothing. In the plastics industry, it's used to enhance the fire safety of products such as electronic enclosures, automotive parts, and insulation materials.

When it comes to the production of TDCPP - LS, it involves a series of chemical reactions. First, the starting materials, which usually include propylene oxide and phosphorus oxychloride, are reacted under specific conditions. Then, the resulting intermediate is chlorinated to introduce the chlorine atoms at the appropriate positions. The whole process requires strict control of reaction conditions, such as temperature, pressure, and reaction time, to ensure the quality and purity of the final product.

As a supplier, I've seen firsthand the demand for high - quality TDCPP - LS. Customers are always looking for a reliable flame - retardant solution that offers good performance and meets safety standards. That's why we focus on producing TDCPP - LS with consistent quality. We test each batch to ensure that it meets the required specifications in terms of chemical composition, flame - retardant efficiency, and low - smoke properties.

If you're in the market for a flame retardant and think TDCPP - LS might be the right fit for your application, I'd love to have a chat with you. Whether you're in the textile, plastics, or any other industry that requires fire - resistant materials, we can work together to find the best solution for your needs. Contact us to start a procurement discussion and see how TDCPP - LS can enhance the safety of your products.

Cresyl Diphenyl Phosphate

References

  • Textbooks on Organic Chemistry and Flame Retardant Technology
  • Industry Reports on Flame Retardant Market and Applications

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