Trans-2-butene | Metro Welding Supply Corp.

Metro Welding Supply provides guidelines on the compatibility of materials with gases, like 2-trans-Butene, to aid in selecting suitable materials for gas system applications. Based on comprehensive data and international standards outlined in ISO11114-1 and ISO11114-2, these recommendations are instrumental in mitigating risks associated with material-gas interactions.

Key Recommendations:

Utilize Provided Data With Caution:

• The compatibility data should be treated as preliminary information. Consult the detailed standards ISO11114-1 for metallic materials and ISO11114-2 for non-metallic materials to deeply understand material suitability.

Consider Specific Conditions:

• Recognize that the data does not encompass all variable factors such as concentration levels, temperature variations, presence of impurities, and aeration. Each of these can dramatically affect material performance.

Carry Out Targeted Testing:

• Due to the variables that could impact material performance, it’s crucial to conduct extensive testing under actual conditions of use. This will confirm the material's reliability in specific applications.

Seek Specialized Expertise:

• Engage with Metro Welding Supply's technical teams for expert advice and service. This ensures the selection process includes professional evaluation and is aligned with safety and efficiency standards.

These steps are vital for safely integrating materials into gas systems involving 2-trans-Butene, ensuring both high performance and compliance with industrial standards.

The physical properties of 2-trans-Butene in its gaseous form include several critical measurements that are essential for various industrial applications. Here are the key properties:

• Specific Gravity: The specific gravity of 2-trans-Butene gas is measured at 1.93. This indicates the density of the gas compared to air.
• Compressibility Factor (Z): The compressibility factor is approximated at 0.9693, which reflects the deviation of the gas from ideal behavior under current conditions.
• Heat Capacity: This property measures the amount of heat the gas can hold. The heat capacity at constant pressure (Cp) is about 1.6105 kJ/(kg.K), and at constant volume (Cv), it is approximately 1.4367 kJ/(kg.K).
• Thermal Conductivity: The thermal conductivity of 2-trans-Butene is recorded at 17.106 mW/(m.K), indicating how well the gas can conduct heat.
• Viscosity: The viscosity of this gas is about 0. Poise (8.028E-5 Po), detailing the gas's resistance to flow.

Understanding these properties can be crucial for those who utilize this gas in various chemical processes or in the production of materials.

Understanding the properties of 2-trans-Butene is crucial for managing its safe use and storage, particularly regarding its combustion characteristics. Here we delve into the key metrics under both European and United States regulations.

Autoignition Temperature

Both European and US standards agree on the autoignition temperature for 2-trans-Butene, which is critical in preventing unintentional ignition:

• Europe: The autoignition temperature is specified as 324°C.
• United States: Similarly, it is identified at 324°C, ensuring consistency across major standards.

Flammability Limits

Flammability limits indicate the concentrations at which the gas can ignite or explode. There's a slight variance between European and US thresholds:

Europe:

• Lower Flammability Limit: 1.6% volume
• Upper Flammability Limit: 10% volume

United States:

• Lower Flammixture Limit: 1.8% volume
• Upper Flammability Limit: 9.7% volume

These differences highlight the importance of adhering to local regulations when assessing safety measures for the handling and storage of 2-trans-Butene.

Flash Point

It is important to note that the provided standards typically focus on the autoignition temperature and flammability limits. For comprehensive safety assessments, industry stakeholders would also need to refer to additional sources for the flash point measurement.

By understanding these metrics, industries using 2-trans-Butene can better devise safety protocols and emergency measures to prevent any hazardous incidents. This information ensures that businesses remain compliant with both European and US safety standards.

Understanding the Interaction of 2-trans-Butene with Various Materials

When it comes to the compatibility of 2-trans-Butene with various materials used in construction and manufacturing, it's essential to choose the right substances to ensure durability and functionality. Here's a breakdown of how 2-trans-Butene interacts with different categories of materials:

1. Metals:

• Compatible: Aluminium and ferritic steel are considered compatible with 2-trans-Butene, showing satisfactory interactions.
• Satisfactory: Stainless steel similarly shows satisfactory compatibility.
• Data Unavailable: For metals like Monel, copper, and zinc, there is no compatibility data available. Therefore, caution should be exercised when considering these materials for use with 2-trans-Butene.

2. Plastics:Plastics offer varying levels of resistance and compatibility with 2-trans-Butene:

• High Compatibility: Materials such as Polytetrafluoroethylene, Polychlorotrifluoroethylene, Polyvinylidene fluoride, Polyamide, and Polypropylene are rated as satisfactory in interactions with 2-trans-Butene.
• Not Recommended: Polyvinyl chloride is advised against, as it exhibits significant swelling and alteration in mechanical properties when exposed to 2-trans-Butene.

3. Elastomers:Elastomers show a wide range of compatibility with 2-trans-Butene:

• Compatible: Elastomers such as Nitrile rubber, Perfluoroelastomers, and Fluoroelastomers are deemed satisfactory.
• Not Recommended: Other types like Butyl rubber, Chloroprene, Silicone, Polyurethane, and Ethylene-Propylene are not recommended due to considerable swelling and changes to their material properties.

4. Lubricants:The choice of lubricants is crucial, as 2-trans-Butene can significantly affect their performance:

• Compatible: Fluorocarbon-based lubricants maintain their integrity and mass when exposed to 2-trans-Butene.
• Not Recommended: Lubricants based on hydrocarbons are advised against as they suffer significant loss of mass and breakdown.

In summary, when selecting materials for applications involving 2-trans-Butene, it is important to consider their specific compatibility to avoid material failure and maximize efficiency. For some materials, such as certain metals, further research might be necessary due to the lack of available data.

Trans-2-butene is utilized across a variety of industries, showcasing its versatility and essential role in modern manufacturing and healthcare practices. Primarily used in the petrochemical industry, it also finds significant applications in the production of plastics, flavors, and fragrances. As a starting material, trans-2-butene is fundamental in the synthesis of numerous chemicals that are critical to consumer and industrial products.

In the healthcare sector, trans-2-butene serves as a precursor in the synthesis of various pharmaceutical compounds, facilitating the development of treatments and medicines. Its chemical properties make it an invaluable reactant in forming more complex molecules that are pivotal in pharmaceuticals and cosmetics.

Moreover, trans-2-butene's utility extends to the production of butyl rubber, a material essential for manufacturing medical devices and supplies, which underscores its importance in healthcare applications. It is also employed as a feedstock for producing propylene or mixed octenes, which are used in further manufacturing processes within the healthcare industry.

In addition to these roles, trans-2-butene imparts unique olfactory characteristics to a wide range of consumer products, including perfumes, food, and beverages. It is also used in creating solvents, plasticizers, and other specialty chemicals, often acting as a catalyst or a reactant in chemical reactions to produce even more sophisticated materials in industries such as pharmaceuticals, cosmetics, and specialty chemicals. This breadth of application highlights the molecule's critical role in both enhancing consumer products and advancing industrial and healthcare technologies.

2-trans-Butene is utilized as a feedstock for producing propylene and mixed octenes in industrial applications.

One of the specific products made using 2-trans-Butene is butyl rubber.