AZODICARBONAMIDE OR AZO(BIS)FORMAMIDE[C2H4N4O2]

·         CAS Number 123-77-3

·         Linear Formula NH₂CON=NCONH₂

·         Molecular Weight 116.08

·          Beilstein Registry Number 1704003

·          EC Number 204-650-8

·          MDL number MFCD00007958

·          PubChem Substance ID 24891486

Azodicarbonamide, or azo(bis)formamide, is a chemical compound with the molecular formula C₂H₄O₂N₄.^[1] It is a yellow to orange-red, odorless, crystalline powder.

Detailed description

Applications

Blowing agent

The principal use of azodicarbonamide is in the production of foamed plastics as a blowing agent. The thermal decomposition of azodicarbonamide results in the evolution of nitrogen, carbon monoxide, carbon dioxide, and ammonia gases, which are trapped in the polymer as bubbles to form a foamed article.

Azodicarbonamide is used in plastics, synthetic leather, and other industries and can be pure or modified. Modification affects the reaction temperatures. Pure azodicarbonamide generally reacts around 200 °C. In the plastic, leather, and other industries, modified azodicarbonamide (average decomposition temperature 170 °C) contains additives that accelerate the reaction or react at lower temperatures.

An example of the use of azodicarbonamide as a blowing agent is found in the manufacture of vinyl (PVC) foam, where it plays a role in the formation of air bubbles by breaking down into gas at high temperature. Vinyl foam is springy and does not slip on smooth surfaces. It is useful for carpet underlay and floor mats. Commercial yoga mats made of vinyl foam have been available since the 1980s; the first mats were cut from carpet underlay.^[2]

Food additive

As a food additive, azodicarbonamide is used as a flour bleaching agent and a dough conditioner.^[3] It reacts with moist flour as an oxidizing agent.^[4] The main reaction product is biurea, a derivative of urea, which is stable during baking.^[4] Secondary reaction products include semicarbazide and ethyl carbamate.^[3] It is known by the E number E927. Many restaurants in the US fast food industry removed the additive in response to negative publicity.

PRICE

$368.26/KG OR $167.29/IB

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