(E)-carbamoyliminourea
CAS number: 123-77-3
Groups: All Chemicals, Organic Chemicals
Information:
IUPAC Name: (E)-carbamoyliminourea
CAS Number: 123-77-3
Chemical Formula: C2H4N4O2
Synonyms: Azodicarbonamide
1,1'-Azobisformamide
1,1-Azobisformamide
Azodicarbonamide
Azodicarboxamide
Azodicarboxylic acid diamide
Azodiformamide
Azofoam e
Dicarbamoyldiimide
Product Info: Azo is the prefix for the group -N=N- or a combining form of azote which share the core azobenzene structure. Azo compounds have a general molecular formula of R-N=N-R', where R is aryl, heteroaryl, -CH=C(OH)- or aliphatic. The extended delocalization of electrons in the benzene and azo groups forms a conjugated system absorbing visible frequencies of light. Aromatic groups provide characteristic colors of red, orange, and yellow. This is the fundamental structure of azo dyes. Aliphatic azo compounds are unstable and the loss of nitrogen gas occurs by the simultaneous cleavage of carbon-nitrogen bonds, resulting in carbon-centered radicals. some aliphatic azo compounds are utilized as radical initiators. Azobisisobutyronitrile is a typical initiator of free radical reactions for the production of polymer (polyvinyl chloride, polyacrylonitrile, polyvinyl alcohol and synthetic fibers) and as a blowing agent for plastics and elastomers.
Azodicarbonamide, releasing nitrogen gas, is a general foaming agent for rubbers and plastics such as PVC, EVA, polyolefin, polystyrene products. (Its temperature of decomposition is 205 - 215 C). It is also used as an aging and bleaching ingredient in cereal flours and dough conditioner in baking bread. Azodicarbonamide acts as a hydrogen acceptor, converting to biurea.
Blowing agents, also called foaming agents, can be classified as Physical and Chemical Blowing Agents. Physical blowing agents are not under chemical changes during processing. Physical blowing agents are in forms of liquid or compressed gas which will transfer state into gases or low boiling liquid during processing causing resins into cellular structure. Chemical Blowing Agents are mainly solid form of hydrazine derivatives include Azodicarbonamide; p,p'-Oxybis(benzenesulfonyl hydrazide); 5-Phenyltetrazole; p-Toluene sulfonyl semicarbazide; Trihydrazine Triazine; They commonly release gases such as nitrogen, carbon dioxide, carbon monoxide or ammonia. But ammonia is not desirable as it effects on degrade of resins. There are nonazo blowing agents releasing carbon dioxide such as sodium borohydride.
ASK FOR QUOTATIONGroups: All Chemicals, Organic Chemicals
Information:
IUPAC Name: (E)-carbamoyliminourea
CAS Number: 123-77-3
Chemical Formula: C2H4N4O2
Synonyms: Azodicarbonamide
1,1'-Azobisformamide
1,1-Azobisformamide
Azodicarbonamide
Azodicarboxamide
Azodicarboxylic acid diamide
Azodiformamide
Azofoam e
Dicarbamoyldiimide
Product Info: Azo is the prefix for the group -N=N- or a combining form of azote which share the core azobenzene structure. Azo compounds have a general molecular formula of R-N=N-R', where R is aryl, heteroaryl, -CH=C(OH)- or aliphatic. The extended delocalization of electrons in the benzene and azo groups forms a conjugated system absorbing visible frequencies of light. Aromatic groups provide characteristic colors of red, orange, and yellow. This is the fundamental structure of azo dyes. Aliphatic azo compounds are unstable and the loss of nitrogen gas occurs by the simultaneous cleavage of carbon-nitrogen bonds, resulting in carbon-centered radicals. some aliphatic azo compounds are utilized as radical initiators. Azobisisobutyronitrile is a typical initiator of free radical reactions for the production of polymer (polyvinyl chloride, polyacrylonitrile, polyvinyl alcohol and synthetic fibers) and as a blowing agent for plastics and elastomers.
Azodicarbonamide, releasing nitrogen gas, is a general foaming agent for rubbers and plastics such as PVC, EVA, polyolefin, polystyrene products. (Its temperature of decomposition is 205 - 215 C). It is also used as an aging and bleaching ingredient in cereal flours and dough conditioner in baking bread. Azodicarbonamide acts as a hydrogen acceptor, converting to biurea.
Blowing agents, also called foaming agents, can be classified as Physical and Chemical Blowing Agents. Physical blowing agents are not under chemical changes during processing. Physical blowing agents are in forms of liquid or compressed gas which will transfer state into gases or low boiling liquid during processing causing resins into cellular structure. Chemical Blowing Agents are mainly solid form of hydrazine derivatives include Azodicarbonamide; p,p'-Oxybis(benzenesulfonyl hydrazide); 5-Phenyltetrazole; p-Toluene sulfonyl semicarbazide; Trihydrazine Triazine; They commonly release gases such as nitrogen, carbon dioxide, carbon monoxide or ammonia. But ammonia is not desirable as it effects on degrade of resins. There are nonazo blowing agents releasing carbon dioxide such as sodium borohydride.
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