Guanidinium Azotetrazolate (GZT)

Guanidinium azotetrazolate (GZT) is a nitrogen rich, carbon poor stable organic compound having the empirical formula (C4H12N16). The decomposition products of GZT are mostly gases consisting of elemental nitrogen as the major product. Since the heat of formation of nitrogen is zero, the decomposition products of GZT are inherently cool and inert. GZT is highly insensitive to mechanical and thermal stimuli and is found as a good fuel additive for gas generator compositions and a good alternate to sodium azide, which is more hazardous to environment.

Salient Features 

•Nitrogen rich organic energetic fuel. 

•Produces cool nitrogen gases on decomposition. 

•Insensitive to mechanical and thermal stimuli. 

•Good alternate to sodium azide used in gas generators. 

•Versatile energetic compositions can be made by adjusting oxygen balance. 


SL NO  Properties of GZT
 1 Colour Yellow
 2 State Amorphous solid
 3  Molecular weight  284
 4  N-content(%)  78.9
 5  C-content  16.9
 6  Heat output(cal/g)  360± 60
 7  Friction Sensitivity (kgf)  > 36
 8  Impact Sensitivity(  > 320
 9  Decomposition Temperature(oC)  252 ± 6


•Fuel for making cool composite gas generators. 

•Fuel for making pyrotechnic charges for power cartridges. 


ISRO is willing to offer the knowhow of this technology to suitable entrepreneurs / industries in India. Capable manufacturing industries interested in acquiring this knowhow may write with details of their present activities, requirements and plans for implementation, infrastructure and technical expertise available with them, their own market assessment, if any, and plans for diversification to the address given below:


Technology Transfer & Industrial Coordination Division (TT&IC)

Vikram Sarabhai Space Centre, ISRO PO

Thiruvananthapuram-695 022

E mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ph: 0471-2564081

Fax: 0471-2564134

Ph: 0471-2564081/2565133/2565695

Fax: 0471-2564134 

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