4,4′-Oxybis(benzenesulfonyl hydrazide) | C12H14N4O5S2

Molecular Formula and Structural Features

Molecular Formula: C12H14N4O5S2

Functional Groups: Sulfonyl hydrazide groups (-SO2NHNH2) attached to a central oxygen atom.

Physical Appearance: White crystalline solid.

Solubility: Moderately soluble in polar solvents; poor solubility in water.

These structural elements contribute to the compound’s unique reactivity and its application in various chemical processes.

Applications of 4,4′-Oxybis (benzenesulfonyl hydrazide)

Blowing Agent in Polymeric Materials: The most common use of 4,4′-Oxybis (benzenesulfonyl hydrazide) is as a chemical blowing agent. It is incorporated into polymer matrices, such as polyolefins, styrenics, and elastomers, to generate a lightweight, foamed product. Upon heating, OBH decomposes and releases nitrogen gas, which forms bubbles within the polymer, creating a cellular structure that reduces the material’s density.

Rubber Industry: In the rubber industry, 4,4′-Oxybis (benzenesulfonyl hydrazide) is used as a foaming agent for producing rubber products with improved cushioning properties. It enables the production of closed-cell foam rubbers, which are utilized in products like gaskets, seals, and vibration dampeners.

Polyurethane Foams: OBH is also used in the synthesis of polyurethane foams, particularly in applications where high insulating properties are required. The foaming process, triggered by 4,4′-Oxybis (benzenesulfonyl hydrazide), leads to foams with excellent thermal insulation properties, making them suitable for use in construction, refrigeration, and automotive industries.

Thermal Insulation Materials: The insulation capabilities of foams produced using 4,4′-Oxybis (benzenesulfonyl hydrazide) are widely harnessed in the construction and automotive sectors. OBH’s ability to create lightweight, thermally efficient materials makes it ideal for creating components like doors, panels, and engine parts where thermal insulation is a priority.