Бегенамид

Description

Begenamide is a behenic acid (docosanoic acid) amide, a long-chain saturated fatty compound. It is used as a technological additive in the production of plastics - an anti-adhesive and lubricant (slip agent), which reduces the coefficient of friction of the surface of films and molded products, and also as a thickener and matting component in the cosmetics industry.

Basic Attributes

• CAS No.: 3061-75-4
• Chemical formula: C22H45NO
• Molecular weight: 339.6
• Exact weight: 339.60
• EU number: 221-304-1
• UNII: DI790A5561
• DSSTox ID: DTXSID7062821
• HS code: 2924199090
• PSA specifications: 43.1
• XLogP3: 9.39

Physico-chemical characteristics

• Appearance: dry powder, large crystal granules
• Density: 0.9 ± 0.1 g/cm3
• Melting point: 111-112 °C
• Boiling point: 471.1 ± 13.0 °C at 760 mm Hg. Art.
• Flash point: 100 °C
• Refractive index: 1.460
• Solubility in water: 0.0002878 mg/l at 25 °C (calculated)

Scope of application

In the polymer industry it is used as a slip agent and anti-adhesive, migrating to the surface of polyethylene and polypropylene films and reducing the coefficient of friction between layers of material. In cosmetics it is used as a thickener, matting and opalescent additive in creams, lotions and decorative cosmetics due to its extremely low solubility in water and high melting point, ensuring the stability of the texture of the finished product. The extremely high XLogP3 value (9.39) reflects the exceptional lipophilicity of the molecule, which explains its limited compatibility with most polymer matrices and determines the gradual migration of the additive to the surface of the product during operation.

Safety Information

• Transport codes: does not fall under the transport classification of dangerous goods (NONH) for all modes of transport
• WGK Germany: 1
• Safety instructions: 22-24/25

Storage and transportation

Extremely low solubility in water (0.0002878 mg/l at 25 °C) means a minimal risk of contamination of water bodies if the product is handled correctly, as evidenced by the low water hazard class WGK 1. The absence of a transport classification of dangerous goods simplifies logistics. There is no data on steam pressure, RTECS number and LD50 values ​​in the dump, no additional information was found - these items are not filled in.

Mechanism of action of the slip agent

After being introduced into a polymer granule, the behenamide molecule gradually migrates to the surface of the product due to limited compatibility with the main polymer. The resulting thin surface layer acts as a dry lubricant, reducing the coefficient of friction between layers of film or finished products when stacked, without compromising the mechanical properties of the material itself. The high melting point (111-112 °C) ensures the stability of the additive during the extrusion process and subsequent operation of the product.