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Cyclopentane blowing agent

Cyclopentane is a colorless, transparent, volatile liquid with a unique gasoline-like smell. Its freezing point is -94°C, while its boiling point is about 49°C. At room temperature, its vapor density is 2.4 times that of air, and as the temperature rises, the vapor pressure will also increase accordingly....

Release time：2025-04-26

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Cyclopentane blowing agent

Physical and chemical properties:

Cyclopentane is a colorless, transparent, volatile liquid with a unique gasoline-like smell. Its freezing point is -94°C, while its boiling point is about 49°C. At room temperature, its vapor density is 2.4 times that of air, and as the temperature rises, the vapor pressure will also increase accordingly. For example, at 20°C, its vapor pressure is 36.6kPa, and at 38°C, it rises to 69kPa. In addition, the density of cyclopentane is 0.745g/cm³ at 20°C, and the flash point (closed cup) is -37°C, indicating its flammable properties. At the same time, its autoignition temperature is 361°C, and its explosion limit (volume fraction) in air is 1.5%~8.7%. Generally, the quality standard of cyclopentane products requires that it is a colorless, transparent liquid and should not contain mechanical impurities or suspended matter.

Uses:

As an important blowing agent, cyclopentane is widely used in many fields. Its unique physical and chemical properties make it a leader among foaming agents, providing key support for the manufacture of a variety of products.

1. The principle of cyclopentane blowing agent

Cyclopentane blowing agent is a commonly used foam material, widely used in architecture, arts and crafts, stage layout and other fields. The principle is: adding a foaming agent to a cyclopentane solution, generating bubbles through the reaction between the foaming agent and cyclopentane, so that the cyclopentane foams to form a foam material.

2. Will the cyclopentane blowing agent be toxic during foaming?

Cyclopentane foaming agent releases a certain amount of cyclopentane gas during the foaming process, but this gas is less toxic to the human body. It is only harmful when exposed to high concentrations of cyclopentane gas, such as in a confined space or for a long time exposed to high concentrations of gas. Therefore, if used correctly, the cyclopentane foaming agent will not be toxic after foaming.

3. Precautions for correct use of cyclopentane blowing agent

1. Pay attention to the concentration of cyclopentane solution and avoid exceeding 10%.

2. Stir thoroughly before use to prevent uneven foaming.

3. Wear protective masks and gloves during use to avoid contact with high concentrations of cyclopentane gas.

4. When operating in a confined space, good ventilation facilities should be equipped to maintain indoor air circulation.

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